FOUS51 KLWX 231423 PFMLWX Point Forecast Matrices National Weather Service Baltimore MD/Washington DC 1023 AM EDT Sun Aug 23 2026 VAZ054-232000- Reagan National Airport-Arlington VA 38.86N 77.03W Elev. 66 ft 1023 AM EDT Sun Aug 23 2026 Date Sun 08/23/26 Mon 08/24/26 Tue 08/25/26 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 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 65 84 64 85 Temp 78 82 82 77 72 68 66 67 78 82 83 77 70 66 64 66 78 83 83 77 Dewpt 65 61 59 57 56 56 56 58 58 56 54 52 53 54 54 55 56 56 56 57 RH 64 49 46 50 57 65 70 73 50 41 37 42 55 65 70 68 47 40 40 50 Wind dir NW W W NW W W SW W W W W NW NW NW W NW NW W W W Wind spd 13 12 12 9 9 5 5 5 10 11 11 10 9 6 6 8 10 9 9 6 Clouds CL FW SC FW FW CL CL CL FW FW SC FW CL CL CL CL FW FW FW FW PoP 12hr 20 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S Tstms S Heat index 83 82 82 Max heat 83 84 82 82 82 83 Date Wed 08/26/26 Thu 08/27/26 Fri 08/28/26 Sat 08/29/26 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 67 87 72 87 72 88 72 87 Temp 69 69 85 81 73 73 84 79 73 74 86 81 74 73 84 80 Dewpt 59 60 62 64 68 69 70 69 71 70 70 68 69 68 67 65 PWind dir NW SE SE SE S W NW N Wind char LT LT GN GN GN LT GN GN Avg clouds FW FW SC SC SC SC B1 B2 B2 B1 SC SC SC SC SC SC PoP 12hr 0 5 30 60 40 20 20 10 Rain shwrs C C L C S S Tstms S S C S S $$ MDZ013-232000- Baltimore/Washington Airport-Anne Arundel MD 39.19N 76.67W Elev. 154 ft 1023 AM EDT Sun Aug 23 2026 Date Sun 08/23/26 Mon 08/24/26 Tue 08/25/26 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 83 63 81 62 83 Temp 77 81 81 74 69 65 64 65 76 79 79 73 68 64 62 64 76 81 81 75 Dewpt 68 64 63 61 59 58 58 61 62 59 57 57 56 56 56 58 60 60 60 62 RH 74 56 54 64 70 78 81 87 62 50 47 57 65 75 81 81 58 49 49 64 Wind dir W W W W W W W W W W W NW NW W W W W W W W Wind spd 9 10 10 5 4 2 3 3 9 10 9 5 3 2 3 4 6 6 6 3 Clouds CL FW SC FW CL CL CL FW CL FW FW FW CL CL FW CL FW FW FW FW PoP 12hr 20 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S Tstms S Heat index 83 82 82 82 Max heat 83 8481 82 82 Date Wed 08/26/26 Thu 08/27/26 Fri 08/28/26 Sat 08/29/26 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 64 85 69 85 69 86 69 85 Temp 66 67 84 78 72 72 83 77 71 72 85 80 71 71 83 79 Dewpt 63 64 65 68 69 71 73 72 71 71 73 72 69 69 70 69 PWind dir NW SE S S S SW NW N Wind char LT LT LT LT LT LT LT LT Avg clouds FW FW SC SC SC B1 B1 B2 B2 B1 SC SC SC SC SC SC PoP 12hr 0 0 30 60 50 20 20 10 Rain shwrs C C L C S S Tstms S C S S $$ MDZ011-232000- Baltimore Inner Harbor-Baltimore City MD 39.28N 76.61W Elev. 20 ft 1023 AM EDT Sun Aug 23 2026 Date Sun 08/23/26 Mon 08/24/26 Tue 08/25/26 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 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 64 82 64 84 Temp 78 82 82 75 70 66 65 66 77 80 80 73 68 65 64 66 77 82 82 75 Dewpt 64 60 59 56 56 57 57 57 56 55 54 53 54 54 55 55 55 56 56 57 RH 62 47 46 52 61 73 75 73 48 42 41 49 61 68 73 68 47 41 41 54 Wind dir W W W W NW W W W W W W NW NW W W W W W W W Wind spd 9 11 10 5 3 2 2 3 8 10 10 5 3 2 3 3 6 8 8 2 Clouds CL FW SC FW CL FW CL FW FW FW FW FW CL CL CL CL FW FW FW FW PoP 12hr 20 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S Tstms S Heat index 82 82 80 80 82 82 Max heat 82 84 80 81 82 82 Date Wed 08/26/26 Thu 08/27/26 Fri 08/28/26 Sat 08/29/26 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 66 86 72 86 72 87 71 86 Temp 68 68 85 79 73 73 84 79 73 73 85 81 73 72 84 79 Dewpt 60 60 61 63 68 69 70 68 70 69 70 68 68 66 66 64 PWind dir NW SE SE S S SW NW N Wind char LT LT LT LT LT LT LT LT Avg clouds FW FW SC SC SC B1 B1 B2 B2 B1 SC SC SC SC SC SC PoP 12hr 0 0 30 60 50 20 20 10 Rain shwrs C C L C S S Tstms C C S S $$ WVZ052-232000- Martinsburg Airport-Berkeley WV 39.41N 77.98W Elev. 558 ft 1023 AM EDT Sun Aug 23 2026 Date Sun 08/23/26 Mon 08/24/26 Tue 08/25/26 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 80 58 79 56 82 Temp 75 80 78 71 63 61 59 62 73 79 76 69 61 58 56 60 75 81 80 73 Dewpt 62 58 56 56 56 56 56 57 56 54 53 52 53 53 53 55 56 56 56 56 RH 64 47 47 59 78 84 90 84 55 42 45 55 75 83 90 84 52 42 44 55 Wind dir W W W W W SW SW SW W W W NW W W W W NW W NW NW Wind spd 11 12 11 5 3 3 4 5 10 11 11 5 3 3 4 4 8 8 8 4 Clouds FW FW FW FW FW FW FW FW CL CL CL CL CL CL CL CL FW FW FW FW PoP 12hr 10 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Heat index 81 81 80 Max heat 81 81 81 82 Date Wed 08/26/26 Thu 08/27/26 Fri 08/28/26 Sat 08/29/26 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 58 85 65 85 65 85 64 84 Temp 60 62 84 78 68 68 83 77 68 68 84 78 67 67 82 77 Dewpt 58 59 60 61 64 66 68 68 67 67 68 67 66 65 64 63 PWind dir NW S SE S S W NW N Wind char LT LT LT LT LT LT LT LT Avg clouds FW SC SC SC SC SC SC B2 B1 SC B1 SC SC SC SC SC PoP 12hr 0 0 20 60 40 20 10 5 Rain shwrs S S L C S Tstms S S C S S $$ VAZ506-232000- Washington Dulles Airport-Loudoun VA 38.96N 77.45W Elev. 321 ft 1023 AM EDT Sun Aug 23 2026 Date Sun 08/23/26 Mon 08/24/26 Tue 08/25/26 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 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 60 82 58 84 Temp 77 81 81 74 67 63 61 63 76 80 80 72 65 61 59 62 76 82 82 75 Dewpt 68 65 62 61 58 58 57 59 61 59 58 56 55 55 54 56 59 61 61 61 RH 74 58 53 64 73 84 87 87 60 49 47 57 70 81 83 81 56 49 49 62 Wind dir NW W W W W W SW W W W W NW NW NW W W NW NW W W Wind spd 11 11 10 5 3 1 2 2 8 9 9 6 3 2 3 3 6 6 5 2 Clouds CL SC SC FW CL FW CL FW CL FW FW CL CL FW CL CL FW FW FW FW PoP 12hr 20 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S Tstms S S Heat index 83 82 81 81 83 83 Max heat 83 84 81 82 83 83 Date Wed 08/26/26 Thu 08/27/26 Fri 08/28/26 Sat 08/29/26 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 61 87 67 86 67 87 67 86 Temp 64 65 85 79 71 70 84 78 70 70 85 80 69 69 83 79 Dewpt 61 62 67 67 69 70 73 72 70 70 73 71 69 69 70 68 PWind dir NW S SE S S W NW N Wind char LT LT LT LT LT LT LT LT Avg clouds FW SC SC SC SC SC B1 B2 B1 B1 SC SC SC B1 SC SC PoP 12hr 0 5 20 60 40 30 20 5 Rain shwrs S C L C C S Tstms S S C S S $$ VAZ037-232000- Charlottesville Airport-Albemarle VA 38.14N 78.45W Elev. 640 ft 1023 AM EDT Sun Aug 23 2026 Date Sun 08/23/26Mon 08/24/26 Tue 08/25/26 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 83 59 83 56 83 Temp 77 82 81 72 65 61 59 61 77 82 82 71 64 59 56 58 76 82 82 72 Dewpt 61 56 54 55 55 55 55 56 56 54 52 53 53 52 52 54 54 55 55 58 RH 58 41 39 55 70 81 87 84 48 38 35 53 67 78 86 86 46 40 40 61 Wind dir NW NW W W W SW SW W W W W NW NW N N NW N SW S N Wind spd 9 9 9 5 4 2 3 4 6 6 6 6 4 0 0 3 0 3 4 0 Clouds CL FW FW CL CL CL FW CL CL FW CL FW FW FW FW FW FW FW FW FW PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Heat index 82 81 Max heat 82 82 81 82 81 82 Date Wed 08/26/26 Thu 08/27/26 Fri 08/28/26 Sat 08/29/26 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 61 86 66 85 67 87 67 85 Temp 63 63 84 77 69 68 83 76 69 69 86 78 69 69 84 77 Dewpt 57 57 63 65 66 68 70 70 69 69 68 70 68 67 67 68 PWind dir N SE SE S S S N E Wind char LT LT LT LT LT LT LT LT Avg clouds FW SC SC SC SC B1 B1 B2 B1 SC SC SC B1 SC SC SC PoP 12hr 0 5 20 60 30 20 20 20 Rain shwrs S C L C S S S Tstms S S C S S S $$ MDZ003-232000- Hagerstown Airport-Washington MD 39.71N 77.73W Elev. 705 ft 1023 AM EDT Sun Aug 23 2026 Date Sun 08/23/26 Mon 08/24/26 Tue 08/25/26 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 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 81 57 79 56 82 Temp 74 79 76 70 63 60 59 61 72 77 73 68 62 58 56 60 74 80 77 72 Dewpt 65 62 60 59 58 58 57 60 60 58 56 55 55 55 54 56 60 60 60 61 RH 74 56 58 68 84 93 93 97 66 52 55 63 78 90 93 87 62 51 56 68 Wind dir W W W W W SW S SW W W W NW W W W W W W NW NW Wind spd 11 11 11 5 3 2 3 4 10 10 11 5 3 2 2 3 6 8 8 3 Clouds FW SC FW FW FW FW SC CL FW FW FW FW CL CL FW CL FW FW FW FW PoP 12hr 20 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S Tstms S Heat index 81 Max heat 81 81 81 Date Wed 08/26/26 Thu 08/27/26 Fri 08/28/26 Sat 08/29/26 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 58 85 65 86 65 85 64 84 Temp 61 62 84 77 69 68 83 77 68 68 83 78 67 67 81 76 Dewpt 60 60 63 63 65 67 70 69 68 68 70 69 66 66 67 65 PWinddir NW S SE S S W NW N Wind char LT LT LT LT LT LT LT LT Avg clouds FW FW SC SC SC B1 SC B2 B1 B1 SC SC SC SC SC SC PoP 12hr 0 0 20 60 40 20 10 5 Rain shwrs S S L C S Tstms S S C S S $$ MDZ017-232000- Patuxent River NAS MD 38.29N 76.41W Elev. 39 ft 1023 AM EDT Sun Aug 23 2026 Date Sun 08/23/26 Mon 08/24/26 Tue 08/25/26 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 85 68 84 67 83 Temp 79 83 85 79 73 70 68 70 79 82 82 75 72 69 67 69 77 81 81 74 Dewpt 69 65 63 64 63 61 60 63 61 60 60 61 60 59 59 60 60 59 60 62 RH 72 55 48 60 71 73 76 78 54 47 47 62 66 70 75 73 56 47 49 66 Wind dir NW W W W NW NW NW W W W W NW N N N NW NW W SW SW Wind spd 9 8 6 3 4 4 3 3 5 6 6 3 5 6 5 5 5 3 4 3 Clouds FW CL CL FW SC FW CL CL CL CL FW FW FW FW FW FW CL CL FW FW PoP 12hr 5 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Heat index 85 86 82 82 81 82 Max heat 85 86 83 84 81 82 Date Wed 08/26/26 Thu 08/27/26 Fri 08/28/26 Sat 08/29/26 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 68 85 72 84 71 86 72 84 Temp 70 72 83 78 75 74 82 78 75 75 84 80 75 75 82 79 Dewpt 64 66 67 68 70 72 73 72 72 73 73 73 72 72 71 70 PWind dir W SE S SE S SW SW NE Wind char LT LT LT GN LT LT LT LT Avg clouds FW FW FW SC SC B1 SC B2 B1 B1 SC SC B1 B1 SC SC PoP 12hr 0 5 30 60 50 20 30 20 Rain shwrs C S L C S S C C S S Tstms S C S S $$ WVZ502-232000- Petersburg WV 38.99N 79.15W Elev. 963 ft 1023 AM EDT Sun Aug 23 2026 Date Sun 08/23/26 Mon 08/24/26 Tue 08/25/26 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 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 55 77 52 82 Temp 74 79 76 68 61 59 57 58 73 77 75 66 59 54 52 55 74 80 80 69 Dewpt 61 58 56 56 56 55 55 55 55 53 52 53 53 52 51 53 56 56 57 58 RH 64 49 50 65 84 87 93 90 53 43 45 63 80 93 96 93 53 44 45 68 Wind dir W W W SE S SW S SW W W W W W W W W W NW NW NW Wind spd 9 10 10 4 3 2 3 3 9 9 9 3 2 2 2 2 1 2 4 2 Clouds FW FW FW FW CL FW SC FW CL CL CL FW CL FW FW FW CL CL FW FW PoP 12hr 5 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Heat index 80 80 Max heat 80 81 Date Wed 08/26/26 Thu 08/27/26 Fri 08/28/26 Sat 08/29/26 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 55 87 62 87 62 86 61 86 Temp 57 58 85 76 66 65 84 76 65 65 84 76 64 63 83 75 Dewpt 55 55 61 63 62 64 67 68 65 65 67 67 64 63 65 64 PWind dir W S SW S SW W W NW Wind char LT LT LT LT LT LT LT LT Avg clouds FW SC SC SC B1 B1 SC B2 SC SC SC SC SC SC SC FW PoP 12hr 0 5 10 60 20 20 5 10 Rain shwrs C L S S Tstms S C S S $$ MDZ014-232000- Annapolis MD 38.99N 76.49W Elev. 7 ft 1023 AM EDT Sun Aug 23 2026 Date Sun 08/23/26 Mon 08/24/26 Tue 08/25/26 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 85 66 83 65 83 Temp 79 83 84 78 72 69 66 68 78 82 82 76 71 67 65 67 78 82 83 77 Dewpt 66 63 60 59 60 59 59 60 59 58 57 56 58 57 57 58 58 58 59 60 RH 64 51 44 52 66 70 78 76 52 44 43 50 63 70 75 73 50 44 44 56 Wind dir W W W W NW W W W W W W NW NW NW W W W W W SW Wind spd 11 11 10 5 4 3 3 4 9 11 10 6 5 3 4 5 8 8 8 4 Clouds FW FW SC FW FW FW CL CL FW FW FW FW CL CL CL CL FW FW FW FW PoP 12hr 20 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S Tstms S Heat index 84 84 82 82 82 83 Max heat 84 85 82 83 82 83 Date Wed 08/26/26 Thu 08/27/26 Fri 08/28/26 Sat 08/29/26 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 68 83 71 86 70 87 71 86 Temp 70 71 83 79 74 73 83 79 72 73 85 81 73 73 84 80 Dewpt 63 64 65 67 70 71 74 71 71 72 74 72 70 70 71 68 PWind dir W SE S S S SW W NE Wind char LT LT LT GN LT LT LT LT Avg clouds FW FW SC SC SC B1 B1 B2 B1 B1 SC SC SC SC SC SC PoP 12hr 0 0 40 60 50 20 20 10 Rain shwrs C C L C S S Tstms S C S S $$