FOUS51 KLWX 222100 PFMLWX Point Forecast Matrices National Weather Service Baltimore MD/Washington DC 500 PM EDT Sat Aug 22 2026 VAZ054-230800- Reagan National Airport-Arlington VA 38.86N 77.03W Elev. 66 ft 500 PM EDT Sat Aug 22 2026 Date 08/22/26 Sun 08/23/26 Mon 08/24/26 Tue EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 70 86 65 85 65 Temp 79 76 73 71 71 72 78 83 84 77 72 68 66 67 77 82 84 78 71 67 65 66 Dewpt 68 69 70 70 69 68 65 61 59 58 57 57 58 58 58 56 55 54 54 55 55 56 RH 69 79 90 97 93 87 64 47 43 52 59 68 75 73 52 41 37 43 55 65 70 70 Wind dir E SE E S S W NW W W W NW NW W W W W W NW NW W NW NW Wind spd 10 8 6 6 6 9 12 12 12 9 9 6 6 6 10 11 10 9 9 6 6 6 Clouds B2 B2 B2 B2 B1 SC FW FW SC FW FW FW FW SC FW SC FW FW FW CL CL CL PoP 12hr 60 0 0 0 0 QPF 12hr 0.03 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C L C Tstms S C S S Heat index 83 84 82 Max heat 83 85 82 83 Date 08/25 Wed 08/26/26 Thu 08/27/26 Fri 08/28/26 Sat 08/29/26 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 85 68 87 72 87 71 87 72 87 Temp 82 77 68 69 85 80 73 74 84 80 73 74 85 81 74 74 85 81 Dewpt 55 57 59 61 62 64 67 69 69 68 70 70 70 68 69 69 68 67 PWind dir W NW SE SE S S W NW N Wind char GN LT LT GN GN GN LT LT LT Avg clouds FW FW FW FW FW SC SC B1 B1 B1 B1 B1 SC B1 B1 SC SC SC PoP 12hr 0 0 10 20 50 50 30 30 20 Rain shwrs S S S C C S S C C S S S Tstms C C S S $$ MDZ013-230800- Baltimore/Washington Airport-Anne Arundel MD 39.19N 76.67W Elev. 154 ft 500 PM EDT Sat Aug 22 2026 Date 08/22/26 Sun 08/23/26 Mon 08/24/26 Tue EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 68 84 63 82 63 Temp 75 72 71 70 69 70 77 82 82 75 69 66 64 65 76 80 81 75 68 64 63 65 Dewpt 71 72 71 70 69 70 69 65 63 62 60 59 59 61 62 59 58 58 57 57 57 58 RH 87100100100100100 76 56 53 64 73 78 84 87 62 49 46 55 68 78 81 78 Wind dir E SE SE S SW W W W W W W W W W W W W NW NW W W W Wind spd 6 4 3 2 2 4 9 10 9 5 3 3 3 3 8 9 9 4 3 2 3 3 Clouds B2 B2 OV B2 B2 B1 SC FW SC FW FW FW FW SC FW SC FW FW CL CL CL CL PoP 12hr 60 5 0 0 0 QPF 12hr 0.08 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C L C S Tstms C C S S Heat index84 83 81 81 Max heat 84 85 81 81 Coast Flood Y Y Y Date 08/25 Wed 08/26/26 Thu 08/27/26 Fri 08/28/26 Sat 08/29/26 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 84 66 85 70 85 69 86 70 86 Temp 83 76 67 68 83 78 71 72 83 78 71 72 84 79 72 72 84 80 Dewpt 58 61 63 65 65 68 69 70 72 72 71 71 73 72 70 70 71 70 PWind dir W W SE SE SE S W NW N Wind char LT LT LT LT LT LT LT LT LT Avg clouds FW FW FW FW FW SC B1 B1 B1 B1 B1 B1 SC B1 SC SC SC SC PoP 12hr 0 0 5 30 50 50 30 20 20 Rain shwrs S C S C C C S C S S S S Tstms S C C S S $$ MDZ011-230800- Baltimore Inner Harbor-Baltimore City MD 39.28N 76.61W Elev. 20 ft 500 PM EDT Sat Aug 22 2026 Date 08/22/26 Sun 08/23/26 Mon 08/24/26 Tue EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 70 85 64 84 63 Temp 77 73 72 71 70 71 78 83 82 76 70 67 65 66 78 82 80 74 69 65 63 65 Dewpt 67 68 69 69 68 67 65 61 59 57 57 58 58 58 57 55 54 55 55 56 56 56 RH 71 84 90 93 93 87 64 47 46 52 63 73 78 75 48 40 41 51 61 73 78 73 Wind dir E SE SE S SW W W W W W NW W W W W W W NW NW W W W Wind spd 8 4 2 1 2 4 8 10 10 5 3 2 2 3 8 10 9 4 3 2 2 3 Clouds B2 B2 B2 B2 B2 B1 SC FW SC FW FW FW FW FW FW SC FW FW CL CL CL CL PoP 12hr 60 5 0 0 0 QPF 12hr 0.11 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C L C C Tstms C C S S Heat index 83 82 80 Max heat 83 85 82 81 Date 08/25 Wed 08/26/26 Thu 08/27/26 Fri 08/28/26 Sat 08/29/26 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 85 67 86 71 86 71 87 71 87 Temp 82 76 68 69 84 79 72 73 84 79 73 73 85 80 73 73 85 81 Dewpt 54 57 60 61 61 63 67 68 69 68 70 69 69 69 69 67 67 66 PWind dir W NW SE SE SE S W NW N Wind char LT LT LT LT LT LT LT LT LT Avg clouds CL FW FW FW FW SC B1 B1 B1 B1 B1 B1 SC B1 SC SC SC SC PoP 12hr 0 0 5 30 50 50 30 20 20 Rain shwrs S C S C C C S C S S S S Tstms S C C S S $$ WVZ052-230800- Martinsburg Airport-Berkeley WV 39.41N 77.98W Elev. 558 ft 500 PM EDT Sat Aug 22 2026 Date 08/22/26 Sun 08/23/26 Mon 08/24/26 Tue EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 62 82 58 81 56 Temp 78 74 68 66 64 66 76 81 78 72 64 61 59 62 75 80 77 71 62 58 56 60 Dewpt 66 67 67 66 64 65 62 58 56 56 57 57 56 57 56 54 53 53 53 54 54 55 RH 67 79 97100100 97 62 46 47 57 78 87 90 84 52 41 43 53 72 86 93 84 Wind dir SE S S S SW W W W W W W SW SW W W W W W W N W W Wind spd 8 6 3 1 4 6 11 12 11 5 3 3 4 5 10 11 11 6 2 0 3 3 Clouds B2 B2 OV B2 B2 SC FW SC SC FW FW FW SC FW FW FW FW CL CL CL CL CL PoP 12hr 70 0 0 0 0 QPF 12hr 0.12 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S L L S Tstms S C S Heat index 81 80 Max heat 81 82 80 80 Date 08/25 Wed 08/26/26 Thu 08/27/26 Fri 08/28/26 Sat 08/29/26 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 83 59 85 65 85 64 85 64 85 Temp 82 74 60 62 83 78 68 69 83 77 68 68 83 78 67 68 83 78 Dewpt 54 56 58 59 60 61 64 66 68 68 67 67 68 67 66 66 65 65 PWind dir W NW SE SE S SW W NW N Wind char LT LT LT LT LT LT LT LT LT Avg clouds FW FW FW FW FW SC SC B1 B1 B2 B1 SC SC B1 SC SC SC SC PoP 12hr 0 0 5 10 50 40 20 20 20 Rain shwrs C C S S S S S S Tstms C S S S $$ VAZ506-230800- Washington Dulles Airport-Loudoun VA 38.96N 77.45W Elev. 321 ft 500 PM EDT Sat Aug 22 2026 Date 08/22/26 Sun 08/23/26 Mon 08/24/26 Tue EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 66 84 61 84 60 Temp 78 74 70 69 68 68 77 82 82 75 68 64 61 63 76 81 82 76 66 62 60 62 Dewpt 71 72 70 69 68 68 68 65 62 61 59 59 58 60 61 59 58 57 56 56 55 57 RH 79 93100100100100 74 56 51 62 73 84 90 90 60 47 44 52 70 81 84 84 Wind dir E SE SE S SW W NW W W W NW W W W W W W NW NW W W W Wind spd 5 4 3 2 2 4 10 10 9 5 4 2 2 3 8 9 9 6 3 2 2 3 Clouds B2 B2 OV B2 B1 SC FW FW SC FW FW FW FW FW FW SC FW FW CL CL CL CL PoP 12hr 60 0 0 0 0 QPF 12hr 0.05 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C L C Tstms S C Heat index 84 83 81 82 Max heat 84 85 81 83 Date 08/25 Wed 08/26/26 Thu 08/27/26 Fri 08/28/26 Sat 08/29/26 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 84 63 87 68 86 68 87 68 87 Temp 82 76 64 66 84 79 70 71 84 7870 70 84 80 70 71 84 80 Dewpt 59 60 61 63 66 67 68 69 73 72 70 70 73 71 70 69 71 70 PWind dir W NW SE SE S S W NW N Wind char LT LT LT LT LT LT LT LT LT Avg clouds FW FW FW FW FW SC SC B1 B1 B1 B1 B1 SC SC SC SC SC SC PoP 12hr 0 0 5 20 50 50 30 20 20 Rain shwrs S S C C S S C S S S S Tstms C S S S $$ VAZ037-230800- Charlottesville Airport-Albemarle VA 38.14N 78.45W Elev. 640 ft 500 PM EDT Sat Aug 22 2026 Date 08/22/26 Sun 08/23/26 Mon 08/24/26 Tue EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 64 84 59 84 57 Temp 80 73 70 68 66 66 77 83 82 72 66 62 59 61 77 82 83 74 65 60 57 59 Dewpt 69 68 69 67 65 65 61 56 54 55 55 55 55 57 55 53 52 54 53 53 53 54 RH 69 84 97 97 97 97 58 40 38 55 68 78 87 87 47 37 34 50 65 78 86 83 Wind dir SE NE N N SW SW NW NW W W W W W W W W W NW NW N N NW Wind spd 4 3 0 0 4 5 8 8 8 5 4 2 2 4 6 6 8 6 4 0 0 3 Clouds B1 B2 B2 B1 SC FW FW FW FW FW CL FW FW CL CL FW FW CL CL CL CL FW PoP 12hr 60 0 0 0 0 QPF 12hr 0.17 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S L C Tstms S C Heat index 83 Max heat 83 82 83 81 82 Date 08/25 Wed 08/26/26 Thu 08/27/26 Fri 08/28/26 Sat 08/29/26 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 84 62 86 66 85 66 86 67 86 Temp 82 74 65 64 84 78 68 69 83 75 69 69 85 78 69 69 85 78 Dewpt 54 57 57 58 63 65 66 67 70 70 69 69 68 70 68 68 67 68 PWind dir SW N SE SE S S W N E Wind char LT LT LT LT LT LT LT LT LT Avg clouds FW FW FW FW FW SC SC SC B1 B2 B1 B1 SC B1 SC SC SC SC PoP 12hr 0 0 10 20 60 40 30 20 20 Rain shwrs S S L C C S S S S Tstms C S S S $$ MDZ003-230800- Hagerstown Airport-Washington MD 39.71N 77.73W Elev. 705 ft 500 PM EDT Sat Aug 22 2026 Date 08/22/26 Sun 08/23/26 Mon 08/24/26 Tue EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 64 82 58 81 57 Temp 76 73 68 67 65 66 76 81 76 71 64 61 59 61 73 80 75 70 62 59 57 59 Dewpt 69 69 68 67 65 66 65 62 60 60 59 59 58 60 60 58 57 56 56 55 54 56 RH 79 87100100100100 69 53 58 68 84 93 96 97 64 47 54 61 81 87 90 90 Wind dir SE SE S S SW W W W W W W SW SW SW W W W NW W W W W Wind spd 6 5 4 3 3 4 10 11 11 5 3 2 2 4 9 10 10 5 3 2 2 2 Clouds B2 B1 OV B2 B2 SC FW SC SC CL FW FW SC FW FW SC FW FW CL CL CL CL PoP 12hr70 0 0 0 0 QPF 12hr 0.14 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S L L C Tstms S C S Heat index 82 81 Max heat 82 81 81 Date 08/25 Wed 08/26/26 Thu 08/27/26 Fri 08/28/26 Sat 08/29/26 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 82 60 85 66 85 66 85 65 85 Temp 81 73 61 63 82 77 68 69 83 77 68 68 83 78 67 68 83 78 Dewpt 58 60 59 61 63 64 64 67 70 69 68 68 70 69 67 67 68 67 PWind dir W NW SW SE S S W NW N Wind char LT LT LT LT LT LT LT LT LT Avg clouds FW FW FW SC FW SC SC B1 B1 B1 B1 B1 SC SC SC SC SC SC PoP 12hr 0 0 5 10 50 50 20 20 20 Rain shwrs C C S S S S S S Tstms C S S S $$ MDZ017-230800- Patuxent River NAS MD 38.29N 76.41W Elev. 39 ft 500 PM EDT Sat Aug 22 2026 Date 08/22/26 Sun 08/23/26 Mon 08/24/26 Tue EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 70 86 68 84 68 Temp 78 74 73 72 71 72 79 84 84 77 74 71 69 70 78 82 83 77 72 70 68 70 Dewpt 71 72 72 71 71 71 69 66 64 65 63 61 61 62 61 60 59 62 61 60 59 60 RH 79 93 97 97100 97 72 55 51 67 69 71 76 76 56 47 44 60 68 71 73 71 Wind dir E SE SE SW SW W W W W W NW NW NW W W W W W NW N NW NW Wind spd 8 5 4 5 5 6 8 6 6 3 4 5 4 4 5 5 5 3 4 6 5 5 Clouds OV B2 B1 B2 B1 B1 SC FW SC SC SC FW SC FW FW SC SC SC FW FW CL FW PoP 12hr 50 5 0 0 0 QPF 12hr 0.04 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C S C C Tstms C S S S Heat index 86 85 82 83 Max heat 86 87 82 84 Date 08/25 Wed 08/26/26 Thu 08/27/26 Fri 08/28/26 Sat 08/29/26 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 84 69 85 73 85 72 85 72 85 Temp 82 75 72 72 82 79 75 75 83 79 75 75 83 80 75 75 83 80 Dewpt 59 61 64 66 66 68 70 71 72 72 72 72 73 73 72 72 72 71 PWind dir W SW SE S SE S SW SW N Wind char LT LT LT LT GN LT LT LT LT Avg clouds FW FW FW FW FW FW SC SC SC B1 B1 B1 SC B1 SC SC SC SC PoP 12hr 0 0 10 20 50 40 30 20 20 Rain shwrs S S C C S S C S S S S Tstms S S S S S $$ WVZ502-230800- PetersburgWV 38.99N 79.15W Elev. 963 ft 500 PM EDT Sat Aug 22 2026 Date 08/22/26 Sun 08/23/26 Mon 08/24/26 Tue EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 60 81 56 80 53 Temp 81 72 67 64 62 62 74 80 76 68 62 58 57 58 73 79 76 67 59 55 53 55 Dewpt 69 67 66 64 62 62 61 58 57 56 56 55 54 55 56 54 53 54 54 52 51 52 RH 67 84 97100100100 64 47 52 65 81 90 90 90 55 42 45 63 83 90 93 90 Wind dir SE S NE E SE SE W W W SW SW SW SW SW W W W W W W W SW Wind spd 3 3 3 3 3 3 8 10 10 4 3 2 2 3 8 9 9 3 1 1 1 1 Clouds B1 B2 B2 B1 B1 B1 SC SC FW FW FW SC B1 SC FW FW CL CL CL CL FW FW PoP 12hr 70 5 5 0 0 QPF 12hr 0.08 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C L C Tstms C C Heat index 84 81 Max heat 84 81 Date 08/25 Wed 08/26/26 Thu 08/27/26 Fri 08/28/26 Sat 08/29/26 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 84 56 88 62 87 62 87 62 87 Temp 83 71 58 59 85 76 65 65 85 76 65 65 84 77 65 65 84 77 Dewpt 55 57 55 55 61 63 62 63 67 68 65 65 67 67 64 64 66 66 PWind dir W W S S S SW W W NW Wind char LT LT LT LT LT LT LT LT LT Avg clouds CL FW FW FW FW SC SC B1 B1 B1 B1 SC SC B1 SC SC SC SC PoP 12hr 0 0 5 10 50 20 30 20 10 Rain shwrs S C S C S S Tstms C S S $$ MDZ014-230800- Annapolis MD 38.99N 76.49W Elev. 7 ft 500 PM EDT Sat Aug 22 2026 Date 08/22/26 Sun 08/23/26 Mon 08/24/26 Tue EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 69 85 66 83 66 Temp 78 75 72 71 70 71 80 84 84 78 73 69 67 68 78 82 83 78 72 68 66 68 Dewpt 68 70 71 70 70 69 67 64 61 61 61 60 60 60 59 58 57 58 59 58 58 58 RH 71 84 97 97100 93 65 51 46 56 66 73 78 76 52 44 41 50 64 70 75 70 Wind dir E SE SE S SW W W W W W NW W W W W W W NW NW NW NW W Wind spd 9 6 4 3 4 6 10 10 9 5 4 3 3 4 9 10 9 5 4 3 4 5 Clouds B2 B2 B2 B2 B2 B1 SC FW SC FW FW FW SC FW FW SC FW FW FW CL CL CL PoP 12hr 50 5 0 0 0 QPF 12hr 0.10 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C C S Tstms C C S S Heat index 82 85 84 82 Max heat 85 86 82 83 Coast Flood Y Y Y Date 08/25 Wed 08/26/26 Thu 08/27/26 Fri 08/28/26 Sat 08/29/26 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 83 68 86 71 86 71 87 71 87 Temp 81 77 70 71 83 79 73 74 84 79 73 73 84 80 73 74 84 80 Dewpt 57 61 63 65 66 67 69 70 72 71 71 71 73 72 71 70 71 70 PWind dir W W SE S SE S SW W N Wind char LT LT LT LT GN LT LT LT LT Avg clouds FW FW FW FW FW SC B1 B1 B1 B1 B1 B1 SC B1 SC SC SC SC PoP 12hr 0 0 5 30 50 50 30 20 20 Rain shwrs S C S C C C S C S S S S Tstms S S C C S S $$