FOUS55 KBYZ 180723 PFMBYZ Point Forecast Matrices National Weather Service Billings MT 123 AM MDT Mon May 18 2026 MTZ235-182200- Billings-Yellowstone MT 45.81N 108.53W Elev. 3648 ft 123 AM MDT Mon May 18 2026 Date Mon 05/18/26 Tue 05/19/26 Wed 05/20/26 MDT 3hrly 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 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 50 29 67 43 71 Temp 37 35 39 43 48 49 45 38 32 30 45 60 65 65 57 48 45 44 55 67 69 65 Dewpt 30 28 30 27 25 24 27 28 26 25 26 26 24 23 27 28 27 26 27 31 32 36 RH 75 75 70 53 40 37 49 67 78 81 47 27 21 20 31 46 49 49 34 26 25 34 Wind dir N N N N N N NE W SW SW SW SW SW SW S SW SW SW SW W W N Wind spd 10 9 11 14 14 13 6 4 3 6 9 9 9 9 6 6 10 13 14 9 10 11 Clouds B2 B2 OV OV B2 B1 SC SC FW SC FW FW SC B1 B1 SC SC SC SC SC B1 B2 PoP 12hr 20 5 5 0 10 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S L Snowshwrs S Tstms S Date Thu 05/21/26 Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 MDT 6hrly 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 43 63 42 71 45 79 50 84 Temp 51 44 56 62 49 44 64 69 54 47 72 77 59 52 76 81 Dewpt 40 37 37 33 35 35 36 34 36 36 38 34 37 37 36 34 PWind dir N N SW SW SW SW W W Wind char GN GN LT LT LT LT LT GN Avg clouds B2 B2 B2 B1 B1 SC SC SC B1 SC SC SC B1 B1 SC SC PoP 12hr 70 50 10 10 5 0 5 5 Rain shwrs L L C C Tstms S S $$ MTZ065-182200- Livingston-Park MT 45.70N 110.47W Elev. 4656 ft 123 AM MDT Mon May 18 2026 Date Mon 05/18/26 Tue 05/19/26 Wed 05/20/26 MDT 3hrly 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 48 25 62 36 65 Temp 30 27 34 40 45 46 41 33 29 26 42 56 60 60 51 44 39 37 51 60 63 60 Dewpt 24 23 22 23 23 24 27 25 23 19 19 23 22 22 29 28 27 26 28 28 30 34 RH 78 85 61 50 41 42 57 72 78 74 39 27 23 23 42 53 62 64 41 29 29 37 Wind dir W W NW N E E E SW NW W W W W W SW SW SW SW W W W W Wind spd 10 8 9 12 13 13 4 4 5 6 9 11 10 9 4 5 8 8 8 13 11 9 Clouds B2 B2 B2 B2 B1 B1 SC FW FW SC SC SC B1 SC SC SC SC SC SC B1 B1 B2 PoP 12hr 40 10 5 0 20 QPF 12hr 0.02 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C S S D Snowshwrs S S C C Tstms S Date Thu 05/21/26 Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 MDT 6hrly 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 36 61 36 68 40 76 44 80 Temp 46 37 52 59 46 40 62 67 50 43 70 74 55 48 73 77 Dewpt 37 32 32 31 32 31 31 33 34 32 32 32 34 32 31 32 PWind dir NE NW SW W SW W SW W Wind char LT LT LT LT LT GN GN BZ Avg clouds B2 B2 B2 B1 B1 SC B1 B1 B1 SC SC SC B1 SC SC FW PoP 12hr 80 50 10 20 5 5 5 5 Rain shwrs D D C S S Tstms S S S $$ MTZ032-182200- Miles City-Custer MT 46.42N 105.90W Elev. 2628 ft 123 AM MDT Mon May 18 2026 Date Mon 05/18/26 Tue 05/19/26 Wed 05/20/26 MDT 3hrly 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 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 48 30 64 40 73 Temp 38 36 39 43 47 46 43 38 33 31 42 54 62 64 54 48 43 40 54 68 71 67 Dewpt 36 34 34 30 28 28 31 33 32 30 30 28 26 25 29 28 27 27 30 30 30 35 RH 92 92 82 60 47 49 62 82 96 96 62 36 25 22 38 46 53 59 40 24 22 30 Wind dir NW NW NW NW NW N N N NW W SW W SW S SE SE S S SW W W NW Wind spd 14 13 13 13 14 14 8 4 3 3 4 4 4 5 6 9 6 5 9 9 10 11 Clouds B1 B2 OV B2 B2 B2 B2 B1 SC SC FW FW FW FW SC SC SC SC SC SC SC B1 PoP 12hr 20 20 0 0 5 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S S S Snowshwrs S Obvis PF Date Thu 05/21/26 Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 MDT 6hrly 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 43 65 41 71 43 78 48 82 Temp 52 44 58 63 49 42 64 69 52 45 71 75 57 49 76 80 Dewpt 42 40 39 37 39 38 38 36 38 38 40 38 40 40 41 38 PWind dir NW NW W W S S S W Wind char GN GN LT LT LT LT GN GN Avg clouds B2 B2 B2 B1 B1 SC SC SC SC SC SC SC SC SC SC SC PoP 12hr 40 40 10 10 5 5 5 5 Rain shwrs S C C S $$ MTZ033-182200- Baker-Fallon MT 46.38N 104.24W Elev. 2969 ft 123 AM MDT Mon May 18 2026 Date Mon 05/18/26 Tue 05/19/26 Wed 05/20/26 MDT 3hrly 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 46 29 59 35 72 Temp 37 34 38 41 44 45 40 36 32 30 40 50 57 59 47 42 39 37 54 68 71 68 Dewpt 35 32 32 31 30 31 32 32 31 30 28 26 24 22 26 25 23 22 24 25 27 31 RH 92 92 79 67 57 58 73 85 96100 62 39 28 24 43 50 52 54 31 20 19 25 Wind dir NW NW NW NW NW N N NW NW NW NW NW NW SW SE SE S S S SW SW W Wind spd 12 13 13 13 14 14 10 5 3 1 8 6 6 4 4 10 12 11 13 12 11 11 Clouds B2 OV OV OV B2 OV OV OV B2 B2 B1 FW FW FW FW SC SC SC FW FW SC B1 PoP 12hr 40 20 5 0 5 QPF 12hr 0.01 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C C C S S S S S Snowshwrs S Obvis PF Date Thu 05/21/26 Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 MDT 6hrly 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 39 64 38 68 42 75 46 81 Temp 49 40 59 62 45 40 63 66 48 43 70 73 53 48 76 79 Dewpt 41 37 38 34 38 37 35 33 37 37 37 35 40 39 39 36 PWind dir NW NW W W S S S W Wind char LT GN LT LT LT LT GN GN Avg clouds B2 B2 B2 B1 B1 SC SC SC SC SC SC SC SC SC SC SC PoP 12hr 30 40 30 20 20 5 10 5 Rain shwrs S C C C C S S $$ WYZ199-182200- Sheridan-Sheridan WY 44.80N 106.96W Elev. 4019 ft 123 AM MDT Mon May 18 2026 Date Mon 05/18/26 Tue 05/19/26 Wed 05/20/26 MDT 3hrly 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 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 43 24 60 31 67 Temp 33 31 33 37 41 43 37 32 26 25 39 53 58 60 46 39 34 32 48 64 65 65 Dewpt 28 29 31 31 29 28 29 27 23 22 24 25 25 28 30 27 24 24 28 30 31 33 RH 82 92 92 79 62 55 72 81 88 88 54 33 28 29 53 62 66 72 46 28 28 30 Wind dir NW NW NW NW NW NW W W SW SW E N E SE S S SW SW N N N NW Wind spd 18 13 17 18 18 16 8 3 2 1 4 4 3 8 5 6 3 2 2 3 3 5 Clouds OV OV OV OV B2 B2 B2 SC FW FW FW FW FW SC SC SC FW FW FW SC SC SC PoP 12hr 80 10 0 0 10 QPF 12hr 0.04 0 0 0 0 Snow 12hr T 00-00 00-00 Rain shwrs C S S C C S Snowshwrs C L L C Tstms S Wind chill 22 22 Min chill 21 21 28 29 25 29 28 Date Thu 05/21/26 Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 MDT 6hrly 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 36 58 33 67 36 75 40 80 Temp 46 37 51 56 42 35 61 65 45 38 69 73 50 42 75 77 Dewpt 36 35 38 35 34 32 36 35 36 33 38 36 36 34 37 36 PWind dir NW NW W N SW W W NW Wind char LT GN LT LT LT LT LT LT Avg clouds B1 B1 B2 B2 SC SC SC B1 SC SC SC SC SC SC SC SC PoP 12hr 40 70 20 30 5 10 5 10 Rain shwrs S C L L S S S C Tstms S S S $$