FOUS53 KLSX 181901 AFMLSX Area Forecast Matrices National Weather Service Saint Louis MO 201 PM CDT Mon May 18 2026 ILZ100-101-MOZ061-063-064-182100- Madison IL-Saint Clair IL-Saint Charles MO-Saint Louis MO- Saint Louis City MO- Including the cities of Alton, Edwardsville, Belleville, Cahokia, Saint Charles, and Saint Louis 201 PM CDT Mon May 18 2026 Date Mon 05/18/26 Tue 05/19/26 Wed 05/20/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 77 67 85 56 69 Temp 72 72 68 68 67 68 77 81 80 74 68 64 60 57 61 65 68 68 Dewpt 69 67 66 66 66 66 68 70 70 66 64 61 56 52 52 53 54 52 RH 90 84 93 93 97 93 74 69 72 76 87 90 87 83 72 65 61 57 Wind dir S S S S S S S SW W NW N N N N N N N NE Wind spd 13 13 13 12 11 10 13 12 10 8 6 6 9 10 9 8 8 6 Wind gust 27 26 27 26 25 23 24 23 Clouds B2 B2 B1 SC B1 B1 B2 B1 B2 B2 OV B2 B2 SC B2 B2 B2 B1 PoP 12hr 90 30 80 60 20 QPF 12hr 0.13-1.05 0.02-0.25 0.22-0.55 0.02-0.20 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs D C S S L L D L L C L L S S S S Tstms C C S S S C L L C C S Heat index 85 82 Max heat 83 88 90 Flood A A A A A A A Date Thu 05/21/26 Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 51 73 57 75 60 80 61 83 Temp 59 52 68 72 63 59 69 73 65 62 76 79 67 63 80 81 Dewpt 50 45 55 56 56 56 62 63 63 60 64 64 64 61 64 65 PWind dir NE NE E E NW SW S S Wind char LT GN GN LT LT LT LT LT Avg clouds B1 B1 B1 B1 B2 B2 B2 B2 B1 B2 B2 B1 B1 B1 B1 B1 PoP 12hr 10 10 50 70 40 30 20 30 Rain shwrs S L L L C S S C S S C C Tstms S S C S S S S S S $$ MOZ042-049-050-182100- Audrain MO-Osage MO-Callaway MO- Including the cities of Mexico and Fulton 201 PM CDT Mon May 18 2026 Date Mon 05/18/26 Tue 05/19/26 Wed 05/20/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 75 64 78 51 66 Temp 71 72 67 68 66 65 73 74 71 67 62 58 54 52 57 62 65 65 Dewpt 69 67 66 65 65 65 67 67 64 59 57 53 50 48 48 49 50 50 RH 93 84 97 90 97100 81 79 79 75 84 83 86 86 72 62 58 58 Wind dir S S S S S S SW W NW N N N N N NE NE NE NE Wind spd 14 14 13 13 11 11 12 11 10 8 6 6 9 9 9 8 8 8 Wind gust 31 32 29 29 26 26 26 21 20 19 17 18 20 20 20 18 Clouds B2 B2 SC B1 B2 B2 B2 OV B2 OV B2 B1 B1 B1 B2 B1 B1 B1 PoP 12hr 80 60 70 30 10 QPF 12hr 0.03-1.45 0.25-1.02 0.01-0.41 0.00-0.060 Snow 12hr 00-00 00-00 00-00 Rain shwrs L S S C D C L L S S C C S S S S Tstms L S S C S C C C S S Flood A A A A A A A Date Thu 05/21/26 Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 49 70 55 72 56 79 57 82 Temp 56 50 65 70 61 57 67 70 62 58 74 77 63 60 79 80 Dewpt 49 44 53 56 56 56 62 62 60 57 62 63 61 59 64 65 PWind dir NE E E E NE SW E SE Wind char LT GN GN LT LT LT LT LT Avg clouds B1 B1 B2 B2 B2 OV B2 B2 B1 B2 B2 B1 SC B1 SC B1 PoP 12hr 5 10 60 70 30 20 20 30 Rain shwrs C L L L C C S S S S C Tstms S S C C S S S S $$ MOZ041-047-048-182100- Boone MO-Moniteau MO-Cole MO- Including the cities of Columbia and Jefferson City 201 PM CDT Mon May 18 2026 Date Mon 05/18/26 Tue 05/19/26 Wed 05/20/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 75 64 77 52 67 Temp 71 73 68 67 66 65 72 71 70 67 63 59 54 52 58 63 66 65 Dewpt 69 68 66 65 65 65 67 65 61 57 56 53 49 47 47 49 50 49 RH 93 84 93 93 97100 84 81 73 70 78 80 83 83 67 60 56 56 Wind dir S S S S S S SW NW NW N N N N NE NE NE NE NE Wind spd 13 14 13 13 9 8 9 9 9 8 5 5 6 8 8 8 6 6 Wind gust 29 31 29 29 24 25 24 20 19 18 17 17 19 20 20 18 17 17 Clouds B2 B1 B1 B2 B2 B2 B2 OV B2 B2 B2 B2 B1 B1 B2 B1 B1 B1 PoP 12hr 80 60 80 30 10 QPF 12hr 0.02-1.03 0.36-0.87 0.01-0.21 0.02 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs L S S L D C C C S S C C S S Tstms C S S C S C C C S Flood A A A A A A A Date Thu 05/21/26 Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 51 71 56 74 57 80 58 84 Temp 56 52 66 70 62 58 68 72 62 59 75 78 63 61 80 81 Dewpt 50 46 53 56 57 57 62 62 59 58 63 63 60 59 64 65 PWind dir NE E E E E SW E SE Wind char LT GN LT LT LT LT LT LT Avg clouds B1 B2 B2 B2 B2 OV B2 B2 B1 B2 B2 B1 SC B1 SC B1 PoP 12hr 5 10 60 70 40 20 20 30 Rain shwrs S C L L C C C S S S C Tstms S C C C S S S S $$ ILZ095>097-MOZ018-019-026-027-182100- Adams IL-Brown IL-Pike IL-Knox MO-Lewis MO-Shelby MO-Marion MO- Including the cities of Quincy, Mount Sterling, Pittsfield, and Hannibal 201 PM CDT Mon May 18 2026 Date Mon 05/18/26 Tue 05/19/26 Wed 05/20/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 1821 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 78 65 76 50 66 Temp 74 75 71 70 67 66 71 71 70 67 61 57 52 51 57 63 66 65 Dewpt 68 67 65 65 64 65 66 63 59 55 52 49 46 45 46 48 49 48 RH 82 76 81 84 90 97 84 76 68 65 72 75 80 80 67 58 54 54 Wind dir S S S S SW S SW NW NW NW N N N N NE NE NE NE Wind spd 16 14 13 13 11 13 12 11 11 9 6 8 9 9 9 9 8 6 Wind gust 34 32 28 28 27 29 26 23 23 21 18 19 20 20 20 18 Clouds B2 B2 B1 B2 OV B2 B2 B2 B2 B1 B2 B1 SC SC SC B1 SC SC PoP 12hr 50 70 50 10 0 QPF 12hr 0.00-0.11 0.40-1.57 0.00-0.33 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C S S D L L S L S S S Tstms C S S C C S S C S S Date Thu 05/21/26 Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 47 70 53 69 55 78 57 82 Temp 54 48 66 69 60 55 64 68 61 58 73 76 63 60 79 80 Dewpt 45 40 51 53 51 52 58 59 56 56 61 62 58 58 63 64 PWind dir NE E E E NE S SW S Wind char LT GN GN GN LT LT LT LT Avg clouds SC SC B1 B1 B2 OV OV B2 B2 B2 B2 B1 B1 B1 B1 SC PoP 12hr 5 5 50 70 30 20 20 20 Rain shwrs S C L L C S S S S S Tstms S C S S S S S $$ MOZ034>036-182100- Monroe MO-Ralls MO-Pike MO- Including the city of Bowling Green 201 PM CDT Mon May 18 2026 Date Mon 05/18/26 Tue 05/19/26 Wed 05/20/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 77 64 76 51 66 Temp 73 75 71 70 67 65 72 72 71 67 62 58 53 52 57 63 66 65 Dewpt 68 67 65 65 65 65 66 64 60 56 54 51 47 46 46 48 49 49 RH 84 76 81 84 93100 81 76 68 68 75 77 80 80 67 58 54 56 Wind dir S S S S SW S SW W NW N N N N N NE NE NE NE Wind spd 16 14 13 13 11 12 12 11 10 9 6 6 8 9 9 8 8 6 Wind gust 33 32 29 29 25 27 27 23 21 20 18 18 19 20 19 18 17 Clouds B2 B2 SC B2 OV OV B2 B2 B2 B2 B1 B1 B1 SC B1 B1 B1 SC PoP 12hr 60 60 60 20 5 QPF 12hr 0.02-0.15 0.38-1.15 0.01-0.33 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C S C L C C L C S S S S Tstms C S C C S S C C S Flood A A A A A A A Date Thu 05/21/26 Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 48 70 54 69 56 78 58 81 Temp 55 49 65 69 60 56 65 69 61 58 73 76 63 60 79 80 Dewpt 47 41 52 54 53 54 59 60 58 57 61 62 59 58 63 64 PWind dir NE E E E NE SW SW SEWind char LT GN GN LT LT LT LT LT Avg clouds SC B1 B1 B1 B2 OV B2 B2 B2 B2 B2 B1 B1 B1 B1 SC PoP 12hr 5 10 50 70 30 20 20 20 Rain shwrs S C L C C C S S S S Tstms S S C S S S S S $$ ILZ069-070-074-182100- Clinton IL-Marion IL-Washington IL- Including the cities of Centralia and Salem 201 PM CDT Mon May 18 2026 Date Mon 05/18/26 Tue 05/19/26 Wed 05/20/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 80 67 85 59 69 Temp 77 76 71 69 68 68 78 82 80 76 71 66 63 60 63 66 68 68 Dewpt 69 67 66 66 66 67 69 70 71 68 67 64 60 57 55 56 55 54 RH 76 74 84 90 93 97 74 67 74 76 87 93 90 90 75 70 63 61 Wind dir SW S SE S S S SW SW SW W NW N N N N N N NE Wind spd 14 12 12 12 12 12 17 16 11 6 4 5 9 10 9 8 9 8 Wind gust 28 23 25 25 25 24 Clouds B2 B2 B1 SC SC SC B1 B1 B1 B2 OV B2 B2 B1 B2 B2 B2 B1 PoP 12hr 80 20 80 70 30 QPF 12hr 0.27-0.94 0.02-0.26 0.26-0.55 0.08-0.27 0.01 Snow 12hr 00-00 00-00 00-00 Rain shwrs D S S S C L D L D L L C C S S Tstms C S S S C L L C C S Heat index 85 84 Max heat 87 88 90 Flood A A A A A A A Date Thu 05/21/26 Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 52 72 57 75 61 80 62 82 Temp 58 53 69 71 62 59 69 73 66 64 75 78 67 65 78 80 Dewpt 50 48 56 56 55 57 63 64 64 63 64 65 64 63 65 66 PWind dir NE NE E SE SW SW S S Wind char GN GN GN LT LT LT LT LT Avg clouds B1 B1 B1 B1 B1 B2 B2 B2 B1 B2 B2 B1 B1 B1 B1 B1 PoP 12hr 10 10 60 80 50 30 30 30 Rain shwrs L D L C S S C C S C C Tstms S S C C S C S S $$ MOZ074-084-085-099-182100- Saint Francois MO-Iron MO-Madison MO-Reynolds MO- Including the city of Farmington 201 PM CDT Mon May 18 2026 Date Mon 05/18/26 Tue 05/19/26 Wed 05/20/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 84 67 85 57 69 Temp 81 80 73 71 68 67 77 81 80 75 69 66 62 58 62 66 69 67 Dewpt 68 68 67 66 66 66 68 71 73 70 69 65 61 58 57 57 57 55 RH 65 67 81 84 93 97 74 72 79 84100 97 97100 84 73 66 65 Wind dir S SE SE S S S SW S SW W N N N N NE NE NE NE Wind spd 12 10 10 10 10 9 9 8 6 3 2 3 4 5 5 5 5 5 Wind gust 31 28 28 29 28 27 26 23 19 14 12 14 18 21 19 17 17 17 Clouds B2 B1 B1 SC B1 SC B2 B2 B2 B2 B2 B2 OV B2 B2 B2 B2 B2 PoP 12hr50 20 90 80 50 QPF 12hr 0.21-1.27 0.01-0.13 0.28-0.78 0.13-0.26 0.01-0.07 Snow 12hr 00-00 00-00 00-00 Rain shwrs C S S C D D L C D D C C S S S Tstms C S S C L L C C S S S S Heat index 84 81 85 84 Max heat 91 85 90 93 Date Thu 05/21/26 Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 53 74 58 77 59 81 60 82 Temp 59 54 71 73 63 60 72 74 65 62 77 78 66 63 79 79 Dewpt 54 51 58 60 60 60 66 66 64 61 65 67 64 62 66 67 PWind dir NE NE E S SW SW S SE Wind char LT LT LT LT LT LT LT LT Avg clouds B1 B2 B2 B2 B2 OV B2 B2 B1 B2 B1 B1 SC B1 B1 B1 PoP 12hr 20 20 70 80 50 40 40 50 Rain shwrs S S S S C L L D C C S C C C C C Tstms S C S C C S C S S S $$ MOZ051-052-060-182100- Montgomery MO-Lincoln MO-Warren MO- 201 PM CDT Mon May 18 2026 Date Mon 05/18/26 Tue 05/19/26 Wed 05/20/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 75 65 80 52 66 Temp 71 72 68 68 67 66 74 77 74 69 63 60 55 52 58 63 65 66 Dewpt 69 67 66 66 65 66 68 70 67 61 59 55 51 49 49 51 52 51 RH 93 84 93 93 93100 82 79 79 76 87 84 86 89 72 65 63 58 Wind dir S S S S S SW S SW NW NW N N N N NE NE NE NE Wind spd 12 12 12 12 10 9 11 10 8 6 5 5 8 8 8 6 5 5 Wind gust 28 27 27 28 25 25 26 23 19 18 17 17 19 20 19 17 16 16 Clouds B2 B2 SC B1 B1 B2 B2 B2 B2 OV B2 B1 B1 SC B1 B2 B1 B1 PoP 12hr 80 50 80 50 10 QPF 12hr 0.06-0.57 0.08-0.65 0.10-0.37 0.03 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs D C C D S L L C C C C S S Tstms L C C S S C C C S Flood A A A A A A A Date Thu 05/21/26 Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 48 71 54 72 56 79 57 82 Temp 56 49 65 71 62 57 67 71 63 59 74 77 64 61 79 80 Dewpt 49 44 54 56 56 56 62 62 61 58 63 64 62 59 64 65 PWind dir NE E E E N W S SE Wind char LT LT LT LT LT LT LT LT Avg clouds B1 B1 B1 B1 B2 B2 B2 B2 B2 B2 B2 B1 SC B1 B1 B1 PoP 12hr 5 10 50 70 40 30 20 20 Rain shwrs S L L L C C S S S S S Tstms S S C S S S S S $$ ILZ098-099-182100- Calhoun IL-Jersey IL- 201 PM CDT Mon May 18 2026 Date Mon 05/18/26 Tue 05/19/26 Wed 05/20/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 75 66 82 54 67 Temp 72 73 69 69 68 67 76 79 76 71 66 62 57 55 60 64 66 67 Dewpt 67 66 65 65 65 65 67 68 66 62 59 56 51 49 49 50 50 50 RH 84 79 87 87 90 93 74 69 71 73 78 81 80 80 67 60 56 54 Wind dir S S S S S S S SW W NW NW N N N N NE NE NE Wind spd 12 13 13 13 11 10 13 11 9 9 6 9 10 10 9 8 8 6 Wind gust 26 26 26 27 24 23 25 23 Clouds B2 B2 SC SC B2 B2 B2 B1 B2 OV OV B2 B2 SC B1 B2 B1 B1 PoP 12hr 90 50 90 50 10 QPF 12hr 0.10-0.18 0.10-0.52 0.19-0.42 0.01-0.09 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs D C S C L C D L C C C C Tstms L C S C S C L L C S Heat index 80 Max heat 85 86 Flood A A A A A A A Date Thu 05/21/26 Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 48 71 55 72 57 78 59 82 Temp 57 49 67 71 62 58 67 71 64 61 74 77 66 62 79 80 Dewpt 46 42 52 54 53 54 59 60 60 58 61 62 61 59 62 64 PWind dir NE E E E N SW S S Wind char LT GN GN LT LT LT LT LT Avg clouds B1 B1 B1 B1 B2 B2 B2 B2 B2 B2 B2 B1 B1 B1 B1 B1 PoP 12hr 10 10 50 70 40 30 30 20 Rain shwrs S C L C C C S C C C S S Tstms S S C S S S S S $$ ILZ058-059-182100- Greene IL-Macoupin IL- 201 PM CDT Mon May 18 2026 Date Mon 05/18/26 Tue 05/19/26 Wed 05/20/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 75 66 81 52 67 Temp 72 72 69 69 67 67 76 79 76 70 65 61 56 53 59 64 67 65 Dewpt 67 66 64 65 64 65 67 68 66 62 59 55 51 48 49 49 49 49 RH 84 81 84 87 90 93 74 69 71 76 81 81 83 83 69 58 52 56 Wind dir S S S S S S S SW W NW NW N N N N NE NE NE Wind spd 14 14 14 16 12 12 16 14 11 9 8 9 10 10 10 9 9 8 Wind gust 28 26 25 28 26 24 26 26 Clouds OV B2 B1 SC B2 B2 B2 B2 B2 OV OV B1 B2 SC B1 B2 B1 B1 PoP 12hr 80 50 90 50 5 QPF 12hr 0.09-0.26 0.08-0.51 0.23-0.51 0.01-0.08 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs D C S C L C D L C C C C Tstms L C S C S C C L C S Heat index 81 Max heat 83 84 Date Thu 05/21/26 Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 0006 12 18 00 06 12 18 00 Min/Max 45 70 52 71 55 78 57 81 Temp 54 47 67 70 60 56 66 70 63 59 74 76 64 61 79 79 Dewpt 44 41 51 52 52 52 58 59 60 57 60 61 61 59 61 63 PWind dir NE E E E N W S S Wind char GN GN GN GN LT LT LT LT Avg clouds B1 B1 B1 B1 B1 B2 B2 B2 B2 B2 B2 B1 B1 B1 B1 B1 PoP 12hr 5 5 50 70 40 30 30 20 Rain shwrs C L C C S C S C C S S Tstms S S C S S S S S $$ ILZ064-065-182100- Bond IL-Fayette IL- Including the city of Vandalia 201 PM CDT Mon May 18 2026 Date Mon 05/18/26 Tue 05/19/26 Wed 05/20/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 77 66 83 57 68 Temp 75 74 69 69 68 67 77 81 79 75 69 65 61 58 62 65 68 67 Dewpt 68 66 65 65 65 65 68 68 68 66 64 61 57 53 53 53 53 51 RH 79 76 87 87 90 93 74 65 69 74 84 87 87 83 72 65 59 56 Wind dir SW S S S S S SW SW SW W NW N N N N NE NE NE Wind spd 12 12 12 12 12 12 17 14 11 6 5 6 9 10 10 8 9 8 Wind gust 26 24 23 24 25 24 Clouds OV B2 B1 SC SC B1 B2 B1 B2 B2 OV B2 B1 SC B2 B2 B2 B1 PoP 12hr 90 30 80 80 20 QPF 12hr 0.26-0.73 0.06-0.13 0.23-0.43 0.05-0.25 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs D C S S C L D C C L L S S Tstms L C S C L L C C S Heat index 84 81 Max heat 86 88 Flood A A A A A A A Date Thu 05/21/26 Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 48 70 55 72 60 78 60 81 Temp 55 50 67 69 61 58 67 71 65 62 74 76 66 63 78 79 Dewpt 45 45 53 53 53 54 60 62 62 61 63 63 62 61 63 64 PWind dir NE NE E E SW SW S S Wind char GN GN GN LT LT LT LT LT Avg clouds B1 B1 B1 B1 B1 B2 B2 B2 B1 B2 B2 B1 B1 B1 B1 B1 PoP 12hr 10 5 50 80 50 30 30 30 Rain shwrs C D L C S C C C S C S Tstms S S C S S S S S $$ ILZ060-182100- Montgomery IL- Including the city of Litchfield 201 PM CDT Mon May 18 2026 Date Mon 05/18/26 Tue 05/19/26 Wed 05/20/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 76 65 82 54 67 Temp 73 72 68 68 67 66 76 80 77 72 66 62 57 54 60 64 67 65 Dewpt 68 66 65 65 65 65 68 68 68 65 62 58 54 50 51 52 52 51 RH 84 81 90 90 93 97 76 67 74 79 87 87 90 86 72 65 59 60 Wind dir S S S S S S S SW W NW NW N N N N N NE NE Wind spd 13 13 14 14 13 13 17 16 11 8 8 8 10 11 10 9 9 8 Wind gust 26 26 25 28 26 24 Clouds OV B2 B1 SC SC B2 B2 B1 B2 B2 OV B2 B1 SC B2 B2 B1 B1 PoP 12hr 90 40 80 70 10 QPF 12hr 0.14-0.50 0.07-0.14 0.23-0.40 0.05 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs D C S S C C L D L S C C Tstms L C S S S C C L C S Heat index 82 Max heat 84 85 Date Thu 05/21/26 Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 45 70 52 71 57 77 58 80 Temp 53 47 67 69 59 56 65 69 63 60 73 75 64 61 78 78 Dewpt 44 43 53 53 52 52 59 61 61 59 62 63 62 60 63 64 PWind dir NE E E E SW W SW S Wind char GN GN GN GN LT LT LT LT Avg clouds B1 B1 B1 B1 B1 B2 B2 B2 B2 B2 B2 B1 B1 B1 B1 B1 PoP 12hr 10 5 50 70 40 30 30 30 Rain shwrs C L C C S C S C C C S Tstms S S C S S S S S $$ ILZ079-MOZ075-182100- Randolph IL-Sainte Genevieve MO- Including the cities of Chester and Sparta 201 PM CDT Mon May 18 2026 Date Mon 05/18/26 Tue 05/19/26 Wed 05/20/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 83 67 86 58 69 Temp 81 79 74 71 70 68 78 83 81 76 71 66 63 60 62 66 68 69 Dewpt 69 68 67 66 66 66 69 71 73 70 68 65 61 57 56 56 57 55 RH 67 69 79 84 87 93 74 67 77 82 90 97 93 90 81 70 68 61 Wind dir S S SE S S S SW S SW W NW N N N N N N NE Wind spd 16 12 12 12 12 11 12 11 9 5 4 5 8 9 8 8 8 8 Wind gust 31 24 27 29 28 26 25 23 19 19 18 Clouds B2 B1 SC SC SC SC B2 B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 PoP 12hr 70 20 90 70 40 QPF 12hr 0.31-1.26 0.01-0.07 0.29-0.71 0.11-0.23 0.01-0.06 Snow 12hr 00-00 00-00 00-00 Rain shwrs L S S L L L C L L L C C S S Tstms C S S C L L C C S Heat index 83 81 87 86 Max heat 90 85 90 93 Date Thu 05/21/26 Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 52 73 57 76 60 81 60 82 Temp 60 53 69 73 64 60 71 74 66 63 77 79 67 64 79 80 Dewpt 54 49 58 59 58 59 65 66 64 62 65 66 64 63 66 67 PWind dir NE NE E S SW SW S S Wind char LT LT LT LT LT LT LT LT Avg clouds B1 B1 B2 B2 B2 B2 B2 B2 B1 B2 B1 B1 SC B1 B1 B1 PoP 12hr 10 20 70 80 50 40 30 40 Rain shwrs S S LD D C C S C C C C C Tstms C S C C S C S S S $$ MOZ059-062-072-073-182100- Gasconade MO-Franklin MO-Crawford MO-Washington MO- Including the cities of Washington, Union, and Sullivan 201 PM CDT Mon May 18 2026 Date Mon 05/18/26 Tue 05/19/26 Wed 05/20/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 78 66 83 54 67 Temp 74 74 69 69 68 67 76 79 78 72 66 62 58 55 59 63 66 66 Dewpt 69 67 66 65 65 65 68 71 71 67 64 60 56 53 53 53 54 52 RH 84 79 90 87 90 93 76 77 79 84 93 93 93 93 80 70 65 61 Wind dir S S S S S SW S SW W NW N N N N NE NE NE NE Wind spd 12 12 11 11 11 8 10 9 6 4 3 3 4 5 5 5 5 4 Wind gust 29 28 28 29 28 26 25 21 18 14 13 13 17 18 17 16 16 16 Clouds B2 B1 SC SC B1 B1 B2 B2 B2 B2 B2 B2 B2 B1 B2 B2 B2 B2 PoP 12hr 90 30 80 70 30 QPF 12hr 0.37-1.91 0.02-0.60 0.19-0.80 0.03-0.28 0.00-0.06 Snow 12hr 00-00 00-00 00-00 Rain shwrs D C S L C L L L L L L C C C C Tstms L C S S C L L C C S Heat index 81 Max heat 85 87 90 Flood A A A A A A A Date Thu 05/21/26 Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 50 73 56 75 58 81 58 83 Temp 58 51 68 72 63 59 70 73 64 61 76 78 65 62 79 80 Dewpt 52 48 56 58 59 58 64 64 62 60 64 65 63 61 65 66 PWind dir NE E E SE SW SW SE SE Wind char LT LT LT LT LT LT LT LT Avg clouds B1 B1 B2 B2 B2 B2 B2 B2 B1 B2 B2 B1 SC B1 B1 B1 PoP 12hr 10 20 60 70 40 40 30 30 Rain shwrs S C L L L C C S C S S S C Tstms S S C C S S S S S $$ ILZ102-MOZ065-182100- Monroe IL-Jefferson MO- 201 PM CDT Mon May 18 2026 Date Mon 05/18/26 Tue 05/19/26 Wed 05/20/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 79 67 85 56 68 Temp 76 75 70 69 69 68 78 82 80 75 69 64 60 57 61 65 67 68 Dewpt 70 68 67 66 66 66 69 72 73 70 67 63 59 54 54 55 56 54 RH 82 79 90 90 90 93 74 72 79 84 93 97 96 90 78 70 68 61 Wind dir SW S S S S S S SW SW NW N N N N N NE N NE Wind spd 12 11 11 10 10 8 10 9 6 4 4 4 6 6 5 5 5 5 Wind gust 26 24 27 26 27 21 23 21 17 17 18 16 Clouds B2 B1 B1 SC B1 SC B2 B2 B1 B2 B2 B2 B2 B1 B2 B2 B2 B1 PoP 12hr 80 30 80 70 30 QPF 12hr 0.40-1.12 0.01-0.18 0.28-0.65 0.06-0.20 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs D C C L L D L LL L C C S S Tstms C S S C L L C C S Heat index 86 85 Max heat 84 90 93 Flood A A A A A A A Date Thu 05/21/26 Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 51 73 56 75 59 81 60 83 Temp 59 52 69 72 63 59 70 74 65 62 77 79 66 63 80 81 Dewpt 53 47 57 59 58 58 65 66 64 61 65 66 64 62 66 67 PWind dir NE NE E SE SW SW S S Wind char LT LT LT LT LT LT LT LT Avg clouds B1 B1 B2 B1 B2 B2 B2 B2 B1 B1 B2 B1 B1 B1 B1 B1 PoP 12hr 10 20 60 70 50 40 30 40 Rain shwrs S S L L L C C S C C C C C Tstms S S C C S S S S S $$