FOUS51 KLWX 080909 PFMLWX Point Forecast Matrices National Weather Service Baltimore MD/Washington DC 509 AM EDT Wed Jul 8 2026 VAZ054-082000- Reagan National Airport-Arlington VA 38.86N 77.03W Elev. 66 ft 509 AM EDT Wed Jul 8 2026 Date Wed 07/08/26 Thu 07/09/26 Fri 07/10/26 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 72 87 73 91 Temp 72 75 78 81 81 75 74 72 74 80 87 84 82 76 75 73 77 86 91 87 83 Dewpt 70 71 72 72 72 72 73 72 73 75 76 75 75 75 74 72 73 73 73 72 72 RH 93 87 82 74 74 90 97100 97 85 70 74 79 97 97 97 87 65 56 61 70 Wind dir NE E SE S S S S S S S S SW W W W W W W SW W W Wind spd 8 6 5 6 8 8 6 6 6 6 6 8 6 5 6 8 8 9 10 11 9 Clouds B2 B2 B2 B1 SC SC B2 B1 B2 B2 B1 B2 B2 SC FW FW FW SC B2 B2 B1 PoP 12hr 20 30 80 20 70 QPF 12hr 0 0.02 0.16 0.01 0.06 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C D S S L L C Tstms S S C C S C C C Heat index 85 85 85 98 92 89 93100 94 88 Max heat 87 98 94 100 98 Date Sat 07/11/26 Sun 07/12/26 Mon 07/13/26 Tue 07/14/26 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 73 87 70 86 69 86 70 91 Temp 75 75 84 80 71 72 83 80 70 71 83 81 71 72 88 85 Dewpt 73 71 68 67 66 66 63 63 65 66 63 64 66 66 63 64 PWind dir NW N NE E SE E SW N Wind char GN GN LT GN LT GN GN GN Avg clouds B1 B1 B1 B1 B1 B1 SC SC B1 B1 B1 SC SC FW FW FW PoP 12hr 30 30 10 10 20 20 10 5 Rain shwrs C S C S S S S Tstms C C S S $$ MDZ013-082000- Baltimore/Washington Airport-Anne Arundel MD 39.19N 76.67W Elev. 154 ft 509 AM EDT Wed Jul 8 2026 Date Wed 07/08/26 Thu 07/09/26 Fri 07/10/26 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 84 70 87 72 92 Temp 71 76 80 83 81 75 72 71 73 83 87 84 80 75 74 72 76 87 92 88 82 Dewpt 68 68 69 71 71 72 72 71 72 74 76 76 75 75 74 72 72 74 73 72 72 RH 90 76 69 67 72 90100100 97 74 70 77 85100100100 87 65 54 59 72 Wind dir NE E E SE S S S S S S S SW S SW W W W W W W W Wind spd 4 4 4 4 3 3 3 3 3 4 5 5 3 2 3 4 4 6 9 8 4 Clouds B2 B1 B1 SC SC B1 B1 B1 B2 B1 B2 B2 B2 SC SC FW SC FW B2 B2 B1 PoP 12hr 5 30 80 20 60 QPF 12hr 0 0.02 0.21 0.01 0.09 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C C C D S S L L S Tstms S C C C S C C S Heat index 83 88 85 90 98 93 85 95101 95 87 Max heat 83 89 9898 101 99 Date Sat 07/11/26 Sun 07/12/26 Mon 07/13/26 Tue 07/14/26 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 71 88 68 87 68 87 68 92 Temp 73 73 86 82 72 71 85 81 70 71 85 81 71 72 89 85 Dewpt 72 71 69 69 66 67 64 65 66 68 65 67 66 68 66 68 PWind dir NW N NE E SE E S NE Wind char LT LT LT LT LT LT LT LT Avg clouds B1 B1 SC B1 SC SC SC SC B1 B1 B1 SC SC FW FW FW PoP 12hr 20 20 10 10 20 20 20 5 Rain shwrs S S S S S S Tstms S S S S $$ MDZ011-082000- Baltimore Inner Harbor-Baltimore City MD 39.28N 76.61W Elev. 20 ft 509 AM EDT Wed Jul 8 2026 Date Wed 07/08/26 Thu 07/09/26 Fri 07/10/26 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 73 88 74 93 Temp 71 76 81 83 83 76 75 73 76 85 88 85 84 77 76 74 78 89 93 89 85 Dewpt 67 68 69 69 70 70 71 72 72 75 75 74 75 74 74 72 72 73 72 70 71 RH 87 76 67 63 65 82 87 97 87 72 66 70 74 90 94 93 82 59 51 54 63 Wind dir NE E SE SE SE S S S S S S S S SW W W W W W W W Wind spd 3 3 3 4 2 2 2 2 2 4 5 5 2 1 2 3 3 5 9 9 3 Clouds B1 B1 SC SC SC SC B1 B1 B2 B1 B2 B2 B2 SC SC FW SC FW B2 B2 B1 PoP 12hr 5 30 80 20 70 QPF 12hr 0 0.02 0.24 0.01 0.09 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C D S S L L S Tstms C C C S C C S Heat index 84 87 87 94 98 93 92 97101 94 90 Max heat 84 90 98 98 102 100 Date Sat 07/11/26 Sun 07/12/26 Mon 07/13/26 Tue 07/14/26 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 73 89 70 88 70 88 70 92 Temp 75 75 87 82 72 72 86 82 72 72 86 83 72 73 90 87 Dewpt 72 69 66 66 65 64 60 62 64 65 62 64 65 65 63 65 PWind dir NW N NE E SE E SW NE Wind char LT LT LT LT LT LT LT LT Avg clouds B1 B1 SC SC SC SC SC SC SC B1 B1 SC SC FW FW FW PoP 12hr 20 20 10 10 20 20 20 5 Rain shwrs S S S S S S Tstms S S S S $$ WVZ052-082000- Martinsburg Airport-Berkeley WV 39.41N 77.98W Elev. 558 ft 509 AM EDT Wed Jul 8 2026 Date Wed 07/08/26 Thu 07/09/26 Fri 07/10/26 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 81 68 85 68 87 Temp 71 73 78 80 79 72 71 69 72 82 84 84 80 73 70 69 74 84 87 86 79 Dewpt 69 69 71 71 71 72 71 69 71 75 74 72 73 72 70 69 70 73 72 70 70 RH 93 87 79 74 77100100100 97 79 72 67 79 97100100 87 70 61 59 74 Wind dir E E E SE SE S N N S S SWSW N W W W W W W W W Wind spd 4 3 5 4 3 2 0 0 2 2 4 3 0 3 4 4 4 8 9 8 2 Clouds OV B2 B2 B1 SC B1 B1 B2 B1 SC OV B2 SC FW FW SC SC SC B2 B2 B1 PoP 12hr 40 30 80 0 60 QPF 12hr 0.01 0 0.25 0 0.05 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C S S S C S S D L S S L L S Tstms S S S S L C C C S Obvis PF PF PF PF Heat index 83 89 91 90 84 90 94 91 Max heat 85 92 92 94 93 Date Sat 07/11/26 Sun 07/12/26 Mon 07/13/26 Tue 07/14/26 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 67 83 63 83 63 85 65 89 Temp 70 71 81 78 68 68 81 78 68 68 83 79 67 70 87 83 Dewpt 70 70 67 67 63 62 62 64 62 64 63 65 63 65 62 65 PWind dir NW N N E SE E W NW Wind char LT LT LT LT LT LT LT LT Avg clouds B1 B1 SC B1 SC SC B1 B1 SC B1 B1 SC FW FW FW FW PoP 12hr 20 30 10 20 30 20 10 5 Rain shwrs S S C S S C S S Tstms S C S S $$ VAZ506-082000- Washington Dulles Airport-Loudoun VA 38.96N 77.45W Elev. 321 ft 509 AM EDT Wed Jul 8 2026 Date Wed 07/08/26 Thu 07/09/26 Fri 07/10/26 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 82 70 86 70 89 Temp 72 75 80 82 80 74 72 71 72 81 86 85 82 74 72 70 75 85 89 85 80 Dewpt 70 71 72 72 72 73 72 71 72 75 76 75 74 74 72 70 72 74 73 72 72 RH 93 87 77 72 77 97100100100 82 72 72 77100100100 90 70 59 65 77 Wind dir E E SE S S S S S S S S SW W W W W W W SW W W Wind spd 3 3 4 4 3 3 3 3 3 3 5 4 2 2 2 2 3 6 8 6 3 Clouds B2 B2 B2 SC B2 B1 B1 B2 B1 B1 B1 B2 B1 SC SC FW FW SC B2 B2 B1 PoP 12hr 30 40 80 10 70 QPF 12hr 0.04 0.01 0.19 0 0.06 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S C C C L L L C Tstms S S C C C C C Obvis PF Heat index 84 87 84 87 96 94 88 93 97 91 84 Max heat 84 87 96 96 98 96 Date Sat 07/11/26 Sun 07/12/26 Mon 07/13/26 Tue 07/14/26 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 69 85 66 85 65 86 66 90 Temp 72 72 83 80 70 70 83 79 69 69 83 80 69 70 87 84 Dewpt 72 72 72 71 66 66 66 67 65 67 67 68 66 67 67 68 PWind dir NW N N E SE E SW NW Wind char LT LT LT LT LT LT LT LT Avg clouds B1 B1 B1 B1 B1 B1 SC SC B1 B1 B1 SC SC FW FW FW PoP 12hr 30 30 10 20 20 2010 5 Rain shwrs C S S C S S S S S Tstms C C S S S $$ VAZ037-082000- Charlottesville Airport-Albemarle VA 38.14N 78.45W Elev. 640 ft 509 AM EDT Wed Jul 8 2026 Date Wed 07/08/26 Thu 07/09/26 Fri 07/10/26 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 83 70 88 69 90 Temp 72 78 82 82 79 74 72 71 72 84 88 87 82 75 71 69 73 87 90 88 83 Dewpt 71 73 75 73 73 73 72 71 72 75 74 73 73 72 70 69 70 71 72 70 71 RH 97 85 79 74 82 97100100100 74 63 63 74 90 97100 90 59 56 55 67 Wind dir NE N E E N N N N SW S SW SW W N W W W W SW SW W Wind spd 1 0 3 2 0 0 0 0 1 4 6 4 2 0 3 4 4 5 6 6 4 Clouds OV B2 B1 B2 B2 B1 B2 B2 B1 SC B1 OV SC SC FW FW SC SC B1 B1 SC PoP 12hr 70 50 90 5 50 QPF 12hr 0.03 0.11 0.34 0 0.02 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C L C C C C C D C C S Tstms S C C C S C C C C S Obvis PF PF PF PF Heat index 89 87 92 97 94 87 93 97 93 88 Max heat 89 89 98 95 97 95 Date Sat 07/11/26 Sun 07/12/26 Mon 07/13/26 Tue 07/14/26 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 69 85 67 84 65 85 65 90 Temp 72 72 83 79 70 69 82 79 68 68 82 79 68 69 88 83 Dewpt 71 70 69 68 66 66 64 65 64 64 63 65 64 64 62 64 PWind dir W N N E E NE NE NE Wind char LT LT LT LT LT LT LT LT Avg clouds SC B1 B2 B2 B1 B1 SC B1 B1 B1 B1 SC SC FW FW FW PoP 12hr 20 60 20 40 40 20 20 5 Rain shwrs S S L L S S C C C S S S Tstms S S C S C S S $$ MDZ003-082000- Hagerstown Airport-Washington MD 39.71N 77.73W Elev. 705 ft 509 AM EDT Wed Jul 8 2026 Date Wed 07/08/26 Thu 07/09/26 Fri 07/10/26 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 68 85 68 86 Temp 70 73 77 81 79 73 71 69 73 80 83 85 82 73 71 69 73 83 86 85 79 Dewpt 67 68 69 70 71 73 71 69 71 74 74 72 73 73 71 69 70 73 71 69 71 RH 90 84 76 69 77100100100 93 82 74 65 74100100100 90 72 61 59 77 Wind dir E E S S S S S S S S SW SW SW W W W W W W W W Wind spd 3 2 3 4 3 3 3 3 4 3 4 4 2 2 2 2 3 6 8 6 3 Clouds B2 OV B2 SC SC B1 B2 B1 B1 B1 B2 B2 SC SC SC SC SC SC B2 B2 B2 PoP 12hr 30 30 70 5 70 QPF 12hr 0.02 0 0.24 0 0.05 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S C S S C L L S S L L S Tstms S S S C L C C C S Obvis PF PFPF Heat index 85 84 90 91 87 89 91 89 Max heat 85 90 92 92 91 Date Sat 07/11/26 Sun 07/12/26 Mon 07/13/26 Tue 07/14/26 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 83 64 84 64 85 65 89 Temp 70 71 81 79 68 68 81 79 68 68 82 80 68 69 86 83 Dewpt 70 69 67 67 62 63 64 66 62 64 65 67 64 65 65 68 PWind dir NW N NE SE SE SE S W Wind char LT LT LT LT LT LT LT LT Avg clouds B2 B1 SC B1 SC SC SC SC B1 SC B1 SC SC FW FW FW PoP 12hr 20 20 10 20 20 20 10 5 Rain shwrs S S S S S S S S Tstms S S S $$ MDZ017-082000- Patuxent River NAS MD 38.29N 76.41W Elev. 39 ft 509 AM EDT Wed Jul 8 2026 Date Wed 07/08/26 Thu 07/09/26 Fri 07/10/26 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 87 74 92 75 98 Temp 76 81 84 86 82 78 76 75 80 88 92 91 83 79 77 76 82 93 98 96 88 Dewpt 70 69 69 70 70 71 73 73 75 75 76 76 75 75 75 75 75 75 73 73 72 RH 82 67 61 59 67 79 90 94 85 66 60 62 77 88 94 97 79 56 45 48 59 Wind dir E E E SE S S S S S S S S SW SW W W W W SW SW W Wind spd 6 5 4 5 6 6 5 4 4 5 6 6 4 4 5 5 4 5 6 6 4 Clouds B1 SC SC SC B1 B1 B1 B1 B1 B1 B2 B2 B2 B1 FW FW FW FW B1 B1 B1 PoP 12hr 10 30 80 40 40 QPF 12hr 0 0.03 0.32 0.01 0.13 Snow 12hr 00-00 00-00 00-00 Rain shwrs C S C L L C C C C C Tstms S S C C C S S C C Heat index 84 88 91 86 85 98105103 90 89105109106 95 Max heat 88 91 85 105 105 85 89 109 109 Date Sat 07/11/26 Sun 07/12/26 Mon 07/13/26 Tue 07/14/26 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 75 91 73 85 72 85 72 88 Temp 77 80 89 80 75 77 83 80 73 75 82 79 74 75 86 83 Dewpt 74 74 71 68 69 69 64 63 67 68 64 64 67 68 65 66 PWind dir NW N NE E SE SE NE NE Wind char LT LT LT GN LT LT LT GN Avg clouds B1 B1 B1 B1 B1 B1 SC SC B1 B1 SC SC SC FW FW FW PoP 12hr 50 40 20 10 20 20 20 10 Rain shwrs C S C C S S S S S Tstms C S C S S S S $$ WVZ502-082000- Petersburg WV 38.99N 79.15W Elev. 963 ft 509 AM EDT Wed Jul 8 2026 Date Wed 07/08/26 Thu 07/09/26 Fri 07/10/26 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 66 87 65 87 Temp 71 79 83 83 77 72 69 67 69 83 86 87 80 70 67 66 69 82 87 85 77 Dewpt 68 71 72 73 72 72 69 67 69 72 73 73 70 69 67 66 68 71 71 72 70 RH 90 77 70 72 85100100100100 70 65 63 72 97100100 97 69 59 65 79 Wind dir N N E E S S S S SW W W W W W SW SW SW W SW W W Wind spd 0 0 1 2 2 1 1 1 1 1 3 4 3 3 2 2 2 3 6 6 3 Clouds OV B1 B1 B2 B1 B1 B1 B1 B1 B1 OV OV SC FW FW SC SC SC B2 B2 B1 PoP 12hr 70 50 90 5 70 QPF 12hr 0.06 0.04 0.26 0 0.02 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C L C C C C S C D D S S L L C Tstms S C C C S C C C S C C S Obvis PF PF PF PF PF Heat index 88 89 88 93 94 83 86 93 91 Max heat 88 92 93 94 93 94 Date Sat 07/11/26 Sun 07/12/26 Mon 07/13/26 Tue 07/14/26 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 65 84 62 85 62 86 62 90 Temp 68 68 82 78 66 65 82 78 66 65 84 79 65 66 88 82 Dewpt 68 68 70 68 64 64 66 66 62 64 65 67 63 64 64 68 PWind dir W N NW E SE E SW NW Wind char LT LT LT LT LT LT LT LT Avg clouds B1 B2 B2 B2 B1 B1 B1 B1 B1 SC B1 B1 SC FW FW FW PoP 12hr 40 60 20 40 30 30 10 5 Rain shwrs C C L L S S S C C S C C Tstms S S C C C $$ MDZ014-082000- Annapolis MD 38.99N 76.49W Elev. 7 ft 509 AM EDT Wed Jul 8 2026 Date Wed 07/08/26 Thu 07/09/26 Fri 07/10/26 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 84 73 85 75 93 Temp 73 79 82 84 82 77 75 74 76 83 85 84 81 77 77 75 80 89 93 90 83 Dewpt 69 68 69 69 71 73 73 73 73 76 77 76 76 77 76 74 73 75 75 73 73 RH 87 69 65 61 69 87 94 97 90 80 77 77 85100 97 97 79 64 56 58 72 Wind dir NE E E N S S S S S S S S SW N W W W W SW W W Wind spd 5 6 5 0 3 5 5 4 4 8 9 6 4 0 3 4 5 8 9 9 4 Clouds B2 B1 SC SC B1 B1 B1 B2 B2 B1 B1 B2 B2 SC FW FW FW SC B2 B2 B1 PoP 12hr 5 30 80 20 60 QPF 12hr 0 0.03 0.24 0.01 0.05 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C C C L S S L L C Tstms S C C C S C C C Heat index 85 88 86 91 96 93 87 84 99105 98 89 Max heat 85 88 96 96 84 105 103 Date Sat 07/11/26 Sun 07/12/26 Mon 07/13/26 Tue 07/14/26 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 75 88 72 88 71 88 71 91 Temp 77 78 88 84 75 76 86 82 73 75 87 83 74 75 90 86 Dewpt 74 71 69 70 69 68 66 66 68 68 67 67 68 68 69 69 PWind dir NW N NE E SE E SE NE Wind char LT GN LT LT LT LT LT LT Avg clouds B1 B1 B1 SC SC SC SC SC SC SC B1 SC SC FW FW FW PoP 12hr 30 2010 10 20 20 20 5 Rain shwrs C S S S S S Tstms C S S S $$