FOUS51 KLWX 240000 PFMLWX Point Forecast Matrices National Weather Service Baltimore MD/Washington DC 800 PM EDT Sun Aug 23 2026 VAZ054-240800- Reagan National Airport-Arlington VA 38.86N 77.03W Elev. 66 ft 800 PM EDT Sun Aug 23 2026 Date 08/23/26 Mon 08/24/26 Tue 08/25/26 Wed 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 63 85 63 86 66 Temp 75 70 66 64 65 77 82 84 77 69 65 63 65 77 82 84 77 71 68 66 68 Dewpt 56 56 56 56 57 57 56 54 52 54 54 54 55 56 56 56 57 59 59 59 60 RH 52 61 70 75 75 50 41 36 42 59 68 72 70 48 41 38 50 66 73 78 76 Wind dir W NW W SW W W W W NW NW NW NW NW NW W W W W NW N NE Wind spd 9 8 3 4 5 10 11 11 9 6 5 6 6 10 9 9 6 3 3 0 2 Clouds FW CL FW CL CL CL FW FW FW FW FW CL FW FW FW SC 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 Rain shwrs Tstms Heat index 82 82 Max heat 82 83 82 83 Date 08/26 Thu 08/27/26 Fri 08/28/26 Sat 08/29/26 Sun 08/30/26 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 88 71 88 72 89 71 87 70 87 Temp 85 79 73 72 85 78 73 73 86 81 73 72 84 80 72 72 84 80 Dewpt 62 63 67 68 70 69 70 70 70 68 68 67 66 65 66 67 67 66 PWind dir SE S S S W W NE E SE Wind char LT GN GN GN LT LT LT LT GN Avg clouds FW B1 B1 B1 B1 B2 B1 SC SC SC B1 SC SC FW SC SC SC SC PoP 12hr 5 40 70 50 20 10 10 20 20 Rain shwrs C C C L C S S S S Tstms S C C S S $$ MDZ013-240800- Baltimore/Washington Airport-Anne Arundel MD 39.19N 76.67W Elev. 154 ft 800 PM EDT Sun Aug 23 2026 Date 08/23/26 Mon 08/24/26 Tue 08/25/26 Wed EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 62 82 61 85 64 Temp 72 68 64 62 64 76 80 80 71 66 63 62 63 76 83 82 74 69 66 64 66 Dewpt 61 59 58 57 59 60 58 56 57 57 56 56 58 60 59 60 62 63 62 62 64 RH 68 73 81 84 84 58 47 44 61 73 78 81 84 58 44 47 66 81 87 93 93 Wind dir W W W W W W W W NW NW NW W W NW W W NW NW NW N N Wind spd 5 4 2 2 3 8 10 9 4 3 2 3 3 6 6 6 3 1 1 1 1 Clouds FW CL CL FW CL CL FW FW FW FW FW FW FW FW FW SC FW FW FW FW FW PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs Tstms Heat index81 80 83 82 Max heat 81 82 83 83 Date 08/26 Thu 08/27/26 Fri 08/28/26 Sat 08/29/26 Sun 08/30/26 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 86 70 87 70 88 69 85 68 85 Temp 85 77 70 71 84 76 71 72 85 79 71 70 83 77 70 70 83 77 Dewpt 65 67 69 70 73 72 71 71 73 71 69 68 69 69 67 68 70 70 PWind dir SE S S S W NW NE E SE Wind char LT LT GN LT LT LT LT LT LT Avg clouds FW SC B1 B1 B1 B2 B1 B1 SC SC B1 SC FW SC SC SC SC SC PoP 12hr 5 40 70 50 20 10 10 10 20 Rain shwrs S C C L C S S S Tstms S C C S S $$ MDZ011-240800- Baltimore Inner Harbor-Baltimore City MD 39.28N 76.61W Elev. 20 ft 800 PM EDT Sun Aug 23 2026 Date 08/23/26 Mon 08/24/26 Tue 08/25/26 Wed 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 63 84 63 86 65 Temp 73 69 65 63 65 76 81 80 72 67 64 63 65 77 83 83 75 70 67 65 67 Dewpt 56 56 56 56 56 56 54 53 53 54 55 55 55 55 55 57 57 59 60 60 60 RH 55 63 73 78 73 50 39 39 51 63 73 75 70 47 38 41 54 68 78 84 78 Wind dir W NW W W W W W W NW NW NW W W NW W W NW NW NW NW N Wind spd 5 3 1 2 3 8 10 10 4 2 1 2 3 6 6 8 2 1 1 1 0 Clouds FW CL CL FW CL CL FW FW FW FW CL FW CL FW SC SC 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 Rain shwrs Tstms Heat index 81 80 Max heat 81 82 82 83 Date 08/26 Thu 08/27/26 Fri 08/28/26 Sat 08/29/26 Sun 08/30/26 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 87 71 88 71 88 70 86 69 86 Temp 86 78 72 72 85 77 72 72 86 80 72 71 84 78 70 71 83 78 Dewpt 60 62 67 68 69 69 70 70 69 68 68 66 65 64 65 65 66 66 PWind dir SE S S S W NW NE E SE Wind char LT LT LT LT LT LT LT LT LT Avg clouds FW B1 B1 B1 B1 B2 B1 B1 SC SC SC SC FW SC SC SC SC SC PoP 12hr 5 40 70 50 20 10 5 10 20 Rain shwrs S C C L C S S S Tstms S C C S S $$ WVZ052-240800- Martinsburg Airport-Berkeley WV 39.41N 77.98W Elev. 558 ft 800 PM EDT Sun Aug 23 2026 Date 08/23/26 Mon 08/24/26 Tue 08/25/26 Wed EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 58 80 56 8358 Temp 68 62 59 58 61 72 78 77 68 61 58 56 59 73 81 80 72 64 60 58 61 Dewpt 56 55 55 55 57 56 54 53 54 54 54 53 55 57 57 57 58 59 59 58 59 RH 65 78 87 90 87 57 43 43 61 78 86 90 87 57 44 45 61 84 96100 93 Wind dir W SW SW SW SW W W W NW N W W W NW NW NW NW N N N N Wind spd 5 3 3 4 5 10 10 10 4 0 2 3 3 8 8 6 3 0 0 0 0 Clouds CL CL FW FW FW FW FW FW FW FW CL CL FW FW SC SC FW FW FW SC SC PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Heat index 81 80 Max heat 81 81 Date 08/26 Thu 08/27/26 Fri 08/28/26 Sat 08/29/26 Sun 08/30/26 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 85 65 86 65 86 64 83 63 84 Temp 83 78 67 68 84 77 67 67 84 77 66 67 82 75 66 66 82 77 Dewpt 61 62 64 66 68 68 67 67 67 66 65 65 64 63 63 64 66 66 PWind dir S S S SW NW NW N N SW Wind char LT LT LT LT LT LT LT LT LT Avg clouds SC B1 B1 B1 SC B2 B1 SC SC SC FW SC FW SC SC SC SC B1 PoP 12hr 5 30 60 40 10 5 5 10 10 Rain shwrs C S S L C Tstms S C S $$ VAZ506-240800- Washington Dulles Airport-Loudoun VA 38.96N 77.45W Elev. 321 ft 800 PM EDT Sun Aug 23 2026 Date 08/23/26 Mon 08/24/26 Tue 08/25/26 Wed 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 59 83 58 84 61 Temp 71 65 62 59 61 75 80 80 71 64 61 58 61 75 81 82 74 67 63 61 63 Dewpt 62 58 57 56 58 61 59 58 57 56 55 55 56 60 62 63 63 63 62 61 63 RH 73 78 84 90 90 62 49 47 61 75 81 90 84 60 53 53 69 87 97100100 Wind dir W W SW SW SW W W W NW NW NW W NW NW NW W W N N N N Wind spd 5 4 1 2 2 8 9 9 5 3 1 2 3 6 6 4 2 0 0 0 0 Clouds FW CL FW CL CL CL SC FW FW FW FW FW FW FW FW FW FW FW SC FW FW PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs Tstms Heat index 81 81 82 83 Max heat 81 82 82 83 Date 08/26 Thu 08/27/26 Fri 08/28/26 Sat 08/29/26 Sun 08/30/26 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 88 68 88 68 88 67 86 66 86 Temp 85 78 69 70 84 78 70 70 85 79 70 69 83 77 69 68 84 78 Dewpt 67 67 68 70 73 72 70 70 73 71 69 68 70 68 67 68 71 70 PWind dir S S S S NW NW N E S Wind char LT LT GN LT LT LT LTLT LT Avg clouds FW SC B1 B1 SC B2 B1 B1 SC SC SC SC FW SC SC SC SC SC PoP 12hr 5 40 60 40 10 10 5 10 20 Rain shwrs C C S L C S Tstms S S C C S $$ VAZ037-240800- Charlottesville Airport-Albemarle VA 38.14N 78.45W Elev. 640 ft 800 PM EDT Sun Aug 23 2026 Date 08/23/26 Mon 08/24/26 Tue 08/25/26 Wed EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 59 84 56 84 62 Temp 71 64 60 59 61 77 82 82 71 64 59 56 58 75 82 82 72 67 64 62 64 Dewpt 56 55 54 54 56 57 54 52 53 53 53 52 54 55 55 55 58 58 57 56 57 RH 59 73 81 83 84 50 38 35 53 67 80 86 86 50 40 40 61 73 78 81 78 Wind dir NW W W W W W W NW N NW N N W N SW S N N N N N Wind spd 5 4 1 3 3 6 6 6 6 3 0 0 3 0 2 4 0 0 0 0 0 Clouds CL CL FW CL CL CL CL FW FW CL FW FW FW FW FW FW FW FW FW SC FW PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Date 08/26 Thu 08/27/26 Fri 08/28/26 Sat 08/29/26 Sun 08/30/26 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 86 67 86 67 87 66 85 67 85 Temp 84 78 68 68 84 77 69 68 85 78 70 67 83 77 69 68 83 78 Dewpt 63 66 66 67 70 70 69 68 68 69 68 67 67 68 66 66 68 69 PWind dir S S S SW S NW E E S Wind char LT LT LT LT LT LT LT LT LT Avg clouds FW SC B1 B1 SC B2 B1 SC SC SC SC SC FW FW SC SC SC SC PoP 12hr 5 30 60 40 20 10 10 30 20 Rain shwrs C S S L C S C S Tstms S S C S S S $$ MDZ003-240800- Hagerstown Airport-Washington MD 39.71N 77.73W Elev. 705 ft 800 PM EDT Sun Aug 23 2026 Date 08/23/26 Mon 08/24/26 Tue 08/25/26 Wed 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 57 79 56 82 59 Temp 68 62 59 57 60 71 77 74 67 61 58 56 58 73 80 78 71 64 61 59 61 Dewpt 59 58 57 56 59 59 57 56 57 56 55 54 57 61 61 61 62 62 61 59 61 RH 73 87 93 96 96 66 50 53 70 84 90 93 96 66 52 56 73 93100100100 Wind dir W SW S S SW W W W NW NW W SW W NW NW NW NW N N N N Wind spd 4 2 2 3 4 10 10 10 4 2 2 2 2 5 8 6 3 1 0 0 1 Clouds CL FW FW FW CL FW SC SC FW FW CL CL FW FW SC SC FW FW SC 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 81 Max heat 81 81 Date 08/26 Thu 08/27/26 Fri 08/28/26 Sat 08/29/26 Sun 08/30/26 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 85 66 86 66 85 64 83 63 84 Temp 84 76 67 68 84 76 68 68 83 77 66 66 81 75 65 66 82 77 Dewpt 64 64 65 67 70 70 68 68 70 68 66 65 66 65 63 64 68 68 PWind dir S SE S S NW N N NE SW Wind char LT LT LT LT LT LT LT LT LT Avg clouds SC B1 SC B1 SC B2 B1 B1 SC SC SC FW FW SC SC SC SC SC PoP 12hr 0 30 60 40 10 5 5 10 10 Rain shwrs C S S L C Tstms S C C $$ MDZ017-240800- Patuxent River NAS MD 38.29N 76.41W Elev. 39 ft 800 PM EDT Sun Aug 23 2026 Date 08/23/26 Mon 08/24/26 Tue 08/25/26 Wed EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 67 85 67 84 68 Temp 75 72 69 68 70 78 83 83 75 72 69 67 69 76 81 81 74 72 70 68 71 Dewpt 64 63 61 60 62 61 60 60 61 60 59 59 60 60 59 59 61 62 63 63 65 RH 69 73 76 76 76 56 46 46 62 66 70 75 73 58 47 47 64 71 78 84 81 Wind dir W W NW W W W SW W W N N N NW NW NW SW SW SW W W W Wind spd 4 4 4 2 3 4 6 6 4 5 5 5 5 5 3 4 3 3 3 2 2 Clouds FW FW SC SC CL CL FW FW FW FW FW CL FW FW FW FW FW FW FW FW FW PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Heat index 83 83 81 81 Max heat 83 84 81 82 Date 08/26 Thu 08/27/26 Fri 08/28/26 Sat 08/29/26 Sun 08/30/26 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 86 73 86 72 87 72 85 72 85 Temp 85 78 74 74 82 79 74 74 84 79 74 74 82 79 74 74 82 79 Dewpt 65 67 70 71 72 72 72 73 73 72 71 71 70 70 70 70 71 71 PWind dir S S SE S SW W NE SE SE Wind char LT GN GN LT LT LT LT LT LT Avg clouds FW SC SC B1 B1 B2 B2 B1 SC SC SC B1 SC SC SC SC SC SC PoP 12hr 5 30 60 60 20 20 10 20 20 Rain shwrs C C L L S S S S S S Tstms S C S $$ WVZ502-240800- Petersburg WV 38.99N 79.15W Elev. 963 ft 800 PM EDT Sun Aug 23 2026 Date 08/23/26 Mon 08/24/26 Tue 08/25/26 Wed 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 56 79 52 83 56 Temp 67 61 58 57 58 70 76 75 66 59 55 52 54 72 80 80 69 62 58 56 58 Dewpt 55 55 54 53 55 54 52 53 53 53 52 51 52 56 57 57 58 58 56 54 55 RH 65 81 86 86 90 57 43 46 63 80 90 96 93 57 45 45 68 87 93 93 90 Wind dir SE SW S S E W W W W SW SW SW SW NW NW NW NW W N N SW Wind spd 4 3 3 3 3 8 9 9 3 1 2 2 2 1 2 4 2 1 0 0 1 Clouds CL FW FW SC FW CL CL CL FW FW CL FW FW FW FW FW FW FW SC FW FW PoP 12hr0 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 08/26 Thu 08/27/26 Fri 08/28/26 Sat 08/29/26 Sun 08/30/26 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 88 63 88 63 87 60 86 61 87 Temp 85 76 65 65 85 77 65 65 84 76 63 63 83 75 64 64 84 77 Dewpt 60 63 62 63 67 68 65 65 67 66 63 63 65 64 62 63 66 67 PWind dir S SW SW SW W W NW NW SW Wind char LT LT LT LT LT LT LT LT LT Avg clouds SC SC B1 SC SC B1 SC SC SC SC FW SC FW FW SC SC SC SC PoP 12hr 5 10 50 30 10 5 10 5 20 Rain shwrs S C C S Tstms C S S $$ MDZ014-240800- Annapolis MD 38.99N 76.49W Elev. 7 ft 800 PM EDT Sun Aug 23 2026 Date 08/23/26 Mon 08/24/26 Tue 08/25/26 Wed EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 65 83 64 83 67 Temp 76 71 68 65 67 77 82 82 75 70 67 64 66 77 82 83 76 71 69 67 69 Dewpt 59 60 59 59 59 59 58 56 56 58 58 58 58 58 58 59 60 63 63 63 64 RH 56 68 73 81 75 54 44 41 52 66 73 81 75 52 44 44 58 76 81 87 84 Wind dir W NW N N W W W W NW NW NW NW W NW W W SW N N N N Wind spd 6 4 0 0 4 8 10 9 6 4 2 4 5 6 8 8 4 0 0 0 0 Clouds FW CL FW FW CL FW FW SC FW FW FW CL FW FW FW SC SC FW FW FW FW PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs Tstms Heat index 82 82 82 83 Max heat 82 82 82 83 Date 08/26 Thu 08/27/26 Fri 08/28/26 Sat 08/29/26 Sun 08/30/26 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 84 72 87 71 88 71 86 70 86 Temp 83 78 72 73 85 78 72 73 86 80 73 73 84 79 72 72 84 79 Dewpt 64 67 69 70 73 72 71 72 73 71 70 69 70 68 68 68 70 70 PWind dir SE S S S SW W NE E SE Wind char LT LT GN LT LT LT LT LT LT Avg clouds FW SC B1 B1 B1 B2 B2 B1 SC SC SC SC SC FW SC SC SC SC PoP 12hr 5 40 60 60 20 10 10 10 20 Rain shwrs S C C L L S S S Tstms S C C S S $$