FOUS51 KLWX 151201 PFMLWX Point Forecast Matrices National Weather Service Baltimore MD/Washington DC 801 AM EDT Wed Apr 15 2026 VAZ054-152000- Reagan National Airport-Arlington VA 38.86N 77.03W Elev. 66 ft 801 AM EDT Wed Apr 15 2026 Date Wed 04/15/26 Thu 04/16/26 Fri 04/17/26 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 91 71 91 71 84 Temp 82 89 91 84 79 76 72 73 85 90 91 84 79 75 72 72 79 84 84 79 Dewpt 59 57 54 54 54 53 53 54 55 52 50 50 53 54 56 58 56 53 51 51 RH 46 34 29 36 42 45 51 51 36 27 25 31 41 48 57 61 45 34 32 38 Wind dir SW SW SW S SW SW SW SW SW SW SW SW W W W W NW NW NW N Wind spd 10 11 13 11 11 9 6 6 9 11 13 11 11 10 9 9 11 12 11 8 Clouds SC SC FW SC SC SC SC SC B1 B1 SC SC SC SC B1 B1 SC B1 B1 FW PoP 12hr 0 0 0 20 30 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S S S S C C Heat index 82 Max heat 88 89 81 87 88 81 83 82 Date Sat 04/18/26 Sun 04/19/26 Mon 04/20/26 Tue 04/21/26 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 86 61 71 44 60 41 69 Temp 70 64 81 77 66 62 67 64 51 46 58 54 45 44 64 63 Dewpt 55 55 53 53 54 52 45 38 32 27 22 20 23 27 27 32 PWind dir NE SE S NW NW NW NW SW Wind char LT GN GN BZ BZ BZ GN GN Avg clouds FW FW SC SC B2 B2 B2 B2 B1 FW FW SC FW CL FW FW PoP 12hr 10 10 40 50 30 5 0 0 Rain shwrs C C C C C $$ MDZ013-152000- Baltimore/Washington Airport-Anne Arundel MD 39.19N 76.67W Elev. 154 ft 801 AM EDT Wed Apr 15 2026 Date Wed 04/15/26 Thu 04/16/26 Fri 04/17/26 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 92 70 92 70 83 Temp 84 90 92 84 79 75 70 73 86 92 92 83 79 73 72 70 78 83 83 77 Dewpt 62 60 57 57 56 55 55 56 57 54 51 51 53 55 56 58 59 56 54 55 RH 48 37 31 40 45 50 59 55 37 28 25 33 41 53 57 66 52 40 37 47 Wind dir SW SW SW S SW SW W SW W SW SW SW W W W W NW NW NW N Wind spd 10 11 12 6 5 5 4 4 9 10 12 8 8 6 6 6 11 12 11 6 Clouds SC FW FW SC SC SC SC B1 SC B1 SC SC B1 B1 B1 B1 SC B1 B1 FW PoP 12hr 5 0 0 20 30 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S S S S C C Heat index 85 90 Max heat 90 91 82 90 90 80 82 82 Date Sat 04/18/26 Sun 04/19/26 Mon 04/20/26 Tue 04/21/26 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 62 82 56 69 42 57 38 66 Temp 67 62 78 72 61 58 64 60 49 45 55 51 43 42 63 61 Dewpt 55 55 54 54 54 51 47 41 34 27 23 22 23 26 30 36 PWind dir NE SE S NW NW NW NW SW Wind char LT LT LT GN GN BZ LT LT Avg clouds FW SC SC SC B1 B2 B2 B2 B1 FW FW SC CL CL FW FW PoP 12hr 5 10 40 60 30 5 0 0 Rain shwrs C C C L C $$ MDZ011-152000- Baltimore Inner Harbor-Baltimore City MD 39.28N 76.61W Elev. 20 ft 801 AM EDT Wed Apr 15 2026 Date Wed 04/15/26 Thu 04/16/26 Fri 04/17/26 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 90 70 91 69 81 Temp 82 88 90 83 77 74 71 71 85 91 91 83 78 74 70 70 76 81 81 77 Dewpt 58 56 54 55 54 54 54 54 54 51 49 49 52 53 54 55 55 52 50 52 RH 44 34 30 38 45 50 55 55 35 26 24 31 40 48 57 59 48 37 34 42 Wind dir SW SW SW S SW SW W SW SW SW SW SW W W W W NW W NW N Wind spd 10 11 12 6 4 4 3 3 9 10 12 6 8 6 6 8 11 12 11 6 Clouds FW FW FW SC SC SC B1 B1 B1 B1 SC SC SC B1 B2 B1 SC B1 B1 FW PoP 12hr 5 0 5 20 30 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S S S S C C Heat index 82 Max heat 86 88 81 88 88 81 80 80 Date Sat 04/18/26 Sun 04/19/26 Mon 04/20/26 Tue 04/21/26 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 62 82 58 69 43 58 40 66 Temp 67 62 77 75 65 60 64 62 50 45 55 54 45 43 63 62 Dewpt 53 53 51 51 51 49 42 38 32 25 20 19 23 25 27 32 PWind dir NE SE S W NW NW NW SW Wind char LT LT LT GN GN BZ LT LT Avg clouds FW SC SC SC B1 B2 B2 B2 B1 SC FW SC FW CL FW FW PoP 12hr 10 10 40 60 30 5 0 0 Rain shwrs C C C L C $$ WVZ052-152000- Martinsburg Airport-Berkeley WV 39.41N 77.98W Elev. 558 ft 801 AM EDT Wed Apr 15 2026 Date Wed 04/15/26 Thu 04/16/26 Fri 04/17/26 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 91 65 90 66 81 Temp 82 88 91 81 74 69 65 69 82 89 90 80 72 69 67 67 76 80 81 75 Dewpt 59 57 55 55 55 54 53 54 53 51 50 50 50 53 55 57 56 53 50 49 RH 46 35 30 41 51 59 65 59 37 27 25 35 46 57 65 70 50 39 34 40 Wind dir SW SW SW SW SW SW SW SW SW SW SW W W W W W NW NW NW NW Wind spd 11 12 11 6 5 4 4 4 10 12 12 8 8 6 6 6 11 12 10 5 Clouds SC FW FW FW SC B1 B1 B1 B1 SC SC B1 B1 B2 B1 B1 B1 B1 B1 FW PoP 12hr 5 0 0 30 30 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C C C C C C Heat index 82 81 80 80 Max heat 87 89 86 87 80 80 Date Sat 04/18/26 Sun 04/19/26 Mon 04/20/26 Tue 04/21/26 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 60 86 54 66 37 57 35 69 Temp 65 60 83 78 65 58 64 60 46 41 54 51 40 39 64 63 Dewpt 51 53 52 53 51 47 40 35 27 23 18 17 21 24 29 32 PWind dir N S S NW NW NW NW S Wind char LT LT LT GN GN BZ LT LT Avg clouds FW FW SC B1 B2 B2 B2 B1 SC SC FW FW CL FW FW FW PoP 12hr 5 20 50 50 20 5 0 5 Rain shwrs S C C C C S $$ VAZ506-152000- Washington Dulles Airport-Loudoun VA 38.96N 77.45W Elev. 321 ft 801 AM EDT Wed Apr 15 2026 Date Wed 04/15/26 Thu 04/16/26 Fri 04/17/26 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 91 68 92 69 83 Temp 83 89 91 83 77 73 69 70 85 91 92 82 76 72 70 70 77 82 83 77 Dewpt 62 61 58 57 55 55 55 57 57 54 51 52 54 55 59 60 59 55 54 53 RH 49 39 33 41 47 53 61 63 39 29 25 35 46 55 68 71 54 40 37 43 Wind dir SW SW SW S SW SW SW SW SW SW SW SW W W W W NW NW NW N Wind spd 10 11 13 8 8 5 4 4 9 11 13 9 8 6 6 6 12 12 11 6 Clouds SC FW FW SC B1 SC B1 B1 B1 B1 SC B1 B1 B1 B2 B1 SC B1 B1 FW PoP 12hr 0 0 0 30 30 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C C S S C C Heat index 84 89 Max heat 89 90 80 89 90 80 81 82 Date Sat 04/18/26 Sun 04/19/26 Mon 04/20/26 Tue 04/21/26 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 63 87 56 69 41 58 37 69 Temp 68 63 83 80 65 60 66 63 49 44 56 52 42 42 65 65 Dewpt 55 56 55 55 56 52 47 41 34 27 23 21 24 27 31 34 PWind dir NE S S NW NW NW NW S Wind char LT LT GN GN GN BZ LT LT Avg clouds FW FW SC SC B1 B2 B2 B2 B1 FW FW FW CL FW FW FW PoP 12hr 10 10 40 50 30 5 0 0 Rain shwrs C C C C C $$ VAZ037-152000- Charlottesville Airport-Albemarle VA 38.14N 78.45W Elev. 640 ft 801 AM EDT Wed Apr 15 2026 Date Wed 04/15/26 Thu 04/16/26 Fri 04/17/26 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 93 66 92 67 87 Temp 84 91 93 85 77 71 67 69 84 91 92 83 74 71 68 68 78 86 87 81 Dewpt 55 53 51 49 48 48 49 51 50 49 48 49 50 50 53 56 54 50 48 48 RH 37 28 24 29 36 44 52 53 31 24 22 31 43 47 59 65 43 29 26 32 Wind dir SW SW SW S SW SW SW SW SW SW SW SW W W W W W W NW NW Wind spd 8 10 13 8 5 4 4 4 10 12 13 8 5 4 4 4 8 9 9 4 Clouds FW FW FW FW SC B1 B1 B1 B1 SC SC SC SC B1 B1 SC SC SC SC FW PoP 12hr 0 0 0 20 20 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S S S S S S Date Sat 04/18/26 Sun 04/19/26 Mon 04/20/26 Tue 04/21/26 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 63 89 58 72 40 63 38 72 Temp 69 64 86 82 68 62 69 65 49 44 60 56 43 42 68 67 Dewpt 50 52 50 50 51 51 42 32 27 24 18 16 22 26 28 31 PWind dir N SW SW W NW NW NW S Wind char LT LT LT GN GN GN LT LT Avg clouds FW SC SC SC B1 B2 B2 B1 SC FW FW FW FW FW FW FW PoP 12hr 5 10 30 50 20 5 0 0 Rain shwrs C S C C S Tstms S $$ MDZ003-152000- Hagerstown Airport-Washington MD 39.71N 77.73W Elev. 705 ft 801 AM EDT Wed Apr 15 2026 Date Wed 04/15/26 Thu 04/16/26 Fri 04/17/26 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 88 64 89 64 79 Temp 78 86 88 79 72 68 64 68 81 87 89 79 70 68 64 66 73 78 79 72 Dewpt 63 61 58 59 59 59 57 58 57 54 53 53 53 56 58 60 58 55 53 53 RH 60 43 36 50 64 73 78 70 44 32 29 41 55 65 81 81 59 45 41 51 Wind dir SW SW SW SW SW SW SW S SW SW SW W W W W W NW NW NW N Wind spd 11 12 13 6 4 4 4 5 11 12 13 9 8 6 8 6 12 12 11 6 Clouds FW FW FW FW B1 B1 B1 SC B1 B1 SC B1 B1 B2 B2 B1 B1 B1 B1 FW PoP 12hr 10 0 5 30 30 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C C C C C C Heat index 86 81 Max heat 86 88 85 87 Date Sat 04/18/26 Sun 04/19/26 Mon 04/20/26 Tue 04/21/26 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 59 84 53 65 37 54 33 66 Temp 63 61 81 77 64 57 63 58 46 41 52 49 39 39 63 61 Dewpt 54 55 56 56 53 50 44 39 30 25 22 20 21 25 32 36 PWind dir NE S S W NW NW NW S Wind char LT LT LT GN GN BZ LT LT Avg clouds FW SC SC B1 B2 B2 B2 B1 SC SC FW FW FW FW FW FW PoP 12hr 5 20 50 50 30 5 0 0 Rain shwrs S C C C C C $$ MDZ017-152000- Patuxent River NAS MD 38.29N 76.41W Elev. 39 ft 801 AM EDT Wed Apr 15 2026 Date Wed 04/15/26 Thu 04/16/26 Fri 04/17/26 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 93 65 93 66 86 Temp 87 93 93 80 74 71 67 67 86 92 93 81 77 72 68 66 75 86 86 78 Dewpt 60 58 57 56 54 55 53 54 56 56 55 54 55 54 54 56 58 56 56 55 RH 40 31 30 44 50 57 61 63 36 30 28 39 47 53 61 70 55 36 36 45 Wind dir SW S S S SW SW SW SW SW S S S SW SW W W W NW NW NW Wind spd 9 11 12 9 9 9 9 9 9 11 11 8 9 9 6 6 9 9 6 5 Clouds SC SC FW SC SC FW SC SC B1 B1 SC SC SC SC B1 B1 SC B1 B1 FW PoP 12hr 0 0 0 20 30 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S S C C Heat index 87 80 81 Max heat 92 92 90 91 85 85 Date Sat 04/18/26 Sun 04/19/26 Mon 04/20/26 Tue 04/21/26 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 62 79 58 73 45 61 43 66 Temp 69 62 77 68 63 62 67 61 53 48 59 55 48 47 62 60 Dewpt 56 55 56 54 56 55 51 45 39 32 27 27 29 31 33 40 PWind dir N SE S NW NW NW N S Wind char LT LT GN GN GN BZ GN GN Avg clouds FW FW FW SC SC B2 B2 B2 B1 FW FW FW CL CL FW FW PoP 12hr 10 5 30 60 30 10 0 0 Rain shwrs S C C L C Tstms S $$ WVZ502-152000- Petersburg WV 38.99N 79.15W Elev. 963 ft 801 AM EDT Wed Apr 15 2026 Date Wed 04/15/26 Thu 04/16/26 Fri 04/17/26 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 91 65 90 63 82 Temp 81 89 91 81 72 69 65 68 80 89 90 80 71 67 63 65 73 82 82 74 Dewpt 59 57 55 55 54 54 51 52 52 51 50 51 53 56 55 57 56 53 52 51 RH 47 34 30 41 53 59 60 57 38 27 25 36 53 68 75 75 55 37 35 44 Wind dir W SW SW SW SW SW SW SW W W W W W W W W W NW NW NW Wind spd 9 10 10 5 4 4 4 4 10 11 12 6 4 4 4 5 10 10 9 4 Clouds FW FW FW SC SC B2 B1 B1 B1 SC SC B1 B1 B2 B1 B1 B1 SC SC FW PoP 12hr 0 0 0 40 30 QPF 12hr 0 0 0 0.01 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C C C C S S Heat index 81 81 80 80 Max heat 88 89 86 87 81 81 Date Sat 04/18/26 Sun 04/19/26 Mon 04/20/26 Tue 04/21/26 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 90 49 66 34 59 33 74 Temp 61 58 87 80 65 54 66 60 43 37 55 51 38 38 70 66 Dewpt 52 51 52 55 54 47 39 34 27 23 21 20 23 25 32 36 PWind dir SW SW W W NW NW W SW Wind char LT LT LT GN GN GN LT LT Avg clouds FW SC SC B1 B1 B2 B2 B1 SC SC FW FW FW FW FW FW PoP 12hr 5 30 50 50 20 5 0 5 Rain shwrs C C C C C S Snowshwrs S $$ MDZ014-152000- Annapolis MD 38.99N 76.49W Elev. 7 ft 801 AM EDT Wed Apr 15 2026 Date Wed 04/15/26 Thu 04/16/26 Fri 04/17/26 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 86 67 85 68 79 Temp 80 85 86 78 72 72 67 70 80 85 85 79 73 72 68 70 74 79 79 74 Dewpt 59 58 57 57 55 53 54 54 55 54 54 54 54 54 56 57 57 55 54 55 RH 49 40 37 48 55 51 63 57 42 35 35 42 51 53 65 63 55 44 42 51 Wind dir SW S S S SW SW SW SW S S S S W W W W NW NW NW N Wind spd 9 12 13 9 6 6 4 5 8 11 13 9 8 6 6 6 10 10 10 5 Clouds FW SC FW SC B1 SC B1 B1 SC B1 SC SC B1 B1 B1 B1 SC B1 B1 FW PoP 12hr 0 0 0 20 30 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S S C C Heat index 81 80 Max heat 84 85 83 83 Date Sat 04/18/26 Sun 04/19/26 Mon 04/20/26 Tue 04/21/26 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 60 77 58 68 44 57 41 63 Temp 66 60 71 70 62 60 63 60 50 46 53 52 45 44 59 59 Dewpt 55 53 54 54 53 51 45 41 36 29 25 24 27 29 31 38 PWind dir NE SE S W NW NW NW S Wind char LT LT LT GN GN GN LT LT Avg clouds FW FW SC SC B1 B2 B2 B2 B1 FW FW SC CL CL FW FW PoP 12hr 10 5 30 60 30 5 0 0 Rain shwrs C C C L C $$