FOUS51 KLWX 090901 PFMLWX Point Forecast Matrices National Weather Service Baltimore MD/Washington DC 500 AM EDT Thu Jul 9 2026 VAZ054-092000- Reagan National Airport-Arlington VA 38.86N 77.03W Elev. 66 ft 500 AM EDT Thu Jul 9 2026 Date Thu 07/09/26 Fri 07/10/26 Sat 07/11/26 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 73 89 73 84 Temp 73 73 79 86 84 81 75 74 74 76 85 89 86 82 76 75 73 74 80 84 83 80 Dewpt 72 73 75 75 75 74 74 73 72 72 72 72 72 73 73 73 72 72 70 70 70 69 RH 97100 88 70 74 79 97 97 93 87 65 57 63 74 90 94 97 93 72 63 65 69 Wind dir S S S S SW NW SW SW W W W W W W W W NW NW NW NW N N Wind spd 8 8 8 6 8 8 5 6 6 6 9 9 10 8 5 6 8 8 8 8 8 6 Clouds B2 B1 SC B1 OV B1 FW CL FW FW SC B1 B2 B1 B2 B2 B1 SC B1 B2 B2 B2 PoP 12hr 80 30 60 50 60 QPF 12hr 0.28 0.05 0.08 0.03 0.06 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C S C D C C C C S S S S L L S Tstms C S C L C C C C C S Heat index 95 92 86 91 96 92 87 83 88 87 83 Max heat 95 98 96 94 88 88 Date Sun 07/12/26 Mon 07/13/26 Tue 07/14/26 Wed 07/15/26 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 70 85 68 83 67 90 72 96 Temp 72 72 82 77 69 70 81 79 68 71 87 84 73 74 93 90 Dewpt 68 66 64 63 65 66 60 61 64 65 62 62 65 66 65 65 PWind dir NE E E E S W SW W Wind char LT GN LT GN LT LT GN GN Avg clouds B1 B1 B1 SC B1 SC SC SC FW FW FW FW FW FW FW FW PoP 12hr 20 10 5 5 5 0 0 5 Rain shwrs S Tstms S $$ MDZ013-092000- Baltimore/Washington Airport-Anne Arundel MD 39.19N 76.67W Elev. 154 ft 500 AM EDT Thu Jul 9 2026 Date Thu 07/09/26 Fri 07/10/26 Sat 07/11/26 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 87 71 90 71 85 Temp 71 73 82 86 84 80 75 74 73 75 86 89 86 81 76 73 72 72 81 85 85 80 Dewpt 71 73 74 75 75 74 75 73 72 72 72 72 72 72 74 73 72 71 70 70 70 70 RH 100100 77 70 74 82100 97 97 90 63 57 63 74 94100100 97 69 61 61 72 Wind dir S S SW S W W W W W W W W W W W W NW NW N N N NE Wind spd 3 4 5 5 5 3 2 3 4 4 5 8 8 4 2 2 3 3 4 5 5 3 Clouds B2 B2 SC B2 OV B2 FW FW FW FW SC B1 B2 B1 B1 B1 B1 B1 SC B1 B1 B1 PoP 12hr 90 30 50 40 40 QPF 12hr 0.38 0.03 0.04 0.03 0.03 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C S L D C C C C S S S S C C S Tstms S S S L L C C C S C C S Heat index 88 95 92 84 92 96 92 85 85 90 90 83 Max heat 95 96 9697 90 90 Flood A A A Date Sun 07/12/26 Mon 07/13/26 Tue 07/14/26 Wed 07/15/26 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 68 86 66 86 66 90 71 97 Temp 71 71 84 80 70 70 83 80 69 70 88 84 74 74 95 90 Dewpt 68 67 65 65 66 68 62 64 65 66 65 67 66 68 69 69 PWind dir NE E E E S SW SW W Wind char LT LT LT LT LT LT LT GN Avg clouds B1 B1 SC SC SC SC SC SC SC FW FW FW FW FW FW FW PoP 12hr 20 10 5 5 5 0 0 5 Rain shwrs S Tstms S $$ MDZ011-092000- Baltimore Inner Harbor-Baltimore City MD 39.28N 76.61W Elev. 20 ft 500 AM EDT Thu Jul 9 2026 Date Thu 07/09/26 Fri 07/10/26 Sat 07/11/26 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 73 90 73 87 Temp 73 75 82 87 84 82 76 75 74 77 86 90 88 83 77 75 73 75 83 86 86 82 Dewpt 72 72 74 74 74 73 73 73 72 71 72 71 71 72 72 72 71 70 69 68 68 68 RH 97 90 77 65 72 74 90 94 93 82 63 54 57 70 85 90 93 84 63 55 55 63 Wind dir S S S S SW SW W W W W W W W W W W NW NW N N N NE Wind spd 2 3 4 5 5 2 2 2 3 3 5 8 8 3 2 2 2 3 4 5 5 2 Clouds B2 B2 SC B2 OV B2 FW FW FW SC SC B1 B2 B1 B1 B1 B1 B1 SC B1 B1 B1 PoP 12hr 90 30 50 40 40 QPF 12hr 0.50 0.03 0.03 0.03 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C S L D C C C C S S S S C C S Tstms S S S L L C C C S C C S Heat index 88 95 91 87 92 96 94 88 87 89 89 85 Max heat 95 97 96 96 84 89 91 Flood A A A Date Sun 07/12/26 Mon 07/13/26 Tue 07/14/26 Wed 07/15/26 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 70 87 69 87 68 91 73 98 Temp 72 72 85 81 70 71 84 82 71 72 89 86 75 76 96 92 Dewpt 66 64 61 62 64 65 58 60 63 63 62 63 65 66 66 67 PWind dir NE E E E SW SW SW W Wind char LT LT LT LT LT LT LT LT Avg clouds B1 SC SC SC SC SC SC SC SC FW FW FW FW FW FW FW PoP 12hr 20 10 5 5 5 0 0 5 Rain shwrs S Tstms S $$ WVZ052-092000- Martinsburg Airport-Berkeley WV 39.41N 77.98W Elev. 558 ft 500 AM EDT Thu Jul 9 2026 Date Thu 07/09/26 Fri 07/10/26 Sat 07/11/26 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 86 68 87 67 82 Temp 70 74 83 83 83 79 72 71 70 74 83 85 84 78 72 70 68 71 77 81 82 77 Dewpt 69 71 73 72 72 73 72 70 69 70 71 7170 71 71 70 68 70 69 69 69 68 RH 97 90 72 70 70 82100 97 97 87 67 63 63 79 97100100 97 76 67 65 74 Wind dir S N N W W N SW W SW SW W W W W W N W NW N NW N N Wind spd 2 0 0 3 3 0 3 3 3 3 6 8 6 3 2 0 3 4 5 5 4 0 Clouds B2 SC B1 B2 B2 SC FW FW FW SC B2 OV B2 B1 B2 B1 B1 B1 B1 B2 B2 B1 PoP 12hr 80 10 70 30 60 QPF 12hr 0.20 0 0.19 0.01 0.06 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C L L S L L C C C C C C L L Tstms S C L C S C C S C C Obvis PF Heat index 89 88 88 88 90 88 84 85 Max heat 92 92 90 93 84 85 Date Sun 07/12/26 Mon 07/13/26 Tue 07/14/26 Wed 07/15/26 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 62 83 62 83 62 89 67 94 Temp 67 67 81 76 65 67 81 78 66 67 87 83 70 73 92 87 Dewpt 64 62 63 63 62 63 60 61 61 63 62 64 64 66 65 66 PWind dir N E E E S SW SW W Wind char LT LT LT LT LT LT LT GN Avg clouds B1 B1 SC SC SC SC FW SC FW FW FW FW FW FW FW FW PoP 12hr 10 20 10 5 5 0 0 5 Rain shwrs S $$ VAZ506-092000- Washington Dulles Airport-Loudoun VA 38.96N 77.45W Elev. 321 ft 500 AM EDT Thu Jul 9 2026 Date Thu 07/09/26 Fri 07/10/26 Sat 07/11/26 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 70 89 69 84 Temp 72 74 80 85 83 79 73 72 71 75 84 89 85 79 74 71 70 72 80 84 83 78 Dewpt 71 73 75 76 75 74 73 72 71 72 73 72 73 73 73 71 70 71 71 71 71 71 RH 97 97 85 75 77 85100100100 90 70 57 67 82 97100100 97 74 65 67 79 Wind dir S S S S SW SW SW W W W W W W W W W NW NW NW NW N N Wind spd 3 4 4 5 4 2 2 2 3 3 5 6 6 3 1 2 4 4 5 6 5 2 Clouds B2 B2 B1 B2 OV B1 FW FW SC FW B1 B1 B2 B1 B1 B2 B1 B1 B1 B2 B2 B1 PoP 12hr 80 20 60 30 60 QPF 12hr 0.45 0.01 0.12 0.01 0.04 Snow 12hr 00-00 00-00 00-00 Rain shwrs C S L D S L C C S S C C L L S Tstms C S L L S C C C C S Heat index 85 94 90 90 96 92 83 89 88 Max heat 94 96 96 96 89 89 Flood A A A Date Sun 07/12/26 Mon 07/13/26 Tue 07/14/26 Wed 07/15/26 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 64 84 64 89 68 95 Temp 69 69 82 77 67 68 82 79 67 69 86 83 71 72 92 88 Dewpt 68 66 68 67 65 67 64 65 64 66 66 67 65 67 69 69 PWind dir N NE E E S W SW W Wind char LT LT LT LT LT LT LT LT Avg clouds B1 B1 SC SC SCSC SC SC FW FW FW FW FW FW FW FW PoP 12hr 20 20 5 5 5 0 0 5 Rain shwrs S S Tstms S $$ VAZ037-092000- Charlottesville Airport-Albemarle VA 38.14N 78.45W Elev. 640 ft 500 AM EDT Thu Jul 9 2026 Date Thu 07/09/26 Fri 07/10/26 Sat 07/11/26 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 88 69 90 69 83 Temp 72 72 83 88 85 81 74 72 69 73 87 90 86 81 75 71 70 72 82 83 83 78 Dewpt 71 72 74 73 72 72 71 70 68 70 70 70 70 72 71 71 70 70 70 70 70 70 RH 97100 74 61 65 74 90 93 97 90 57 52 59 74 87100100 93 67 65 65 76 Wind dir N S S SW W W N SW SW SW SW SW W W N N N N N NW N N Wind spd 0 1 3 6 5 3 0 3 3 3 5 6 5 3 0 0 0 0 0 3 2 1 Clouds B2 B1 FW B2 B2 SC FW FW SC FW B1 B2 B2 B1 B1 B1 B1 B1 B1 B2 B2 B1 PoP 12hr 80 10 60 20 80 QPF 12hr 0.14 0 0.05 0.01 0.16 Snow 12hr 00-00 00-00 00-00 Rain shwrs C L L L C S S C C D D C Tstms L L C C S S C C S Obvis PF PF Heat index 90 96 91 85 92 96 91 85 86 87 87 Max heat 96 96 96 96 87 87 Date Sun 07/12/26 Mon 07/13/26 Tue 07/14/26 Wed 07/15/26 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 66 82 63 82 63 88 67 95 Temp 69 68 81 76 66 67 80 77 66 67 86 82 69 70 93 88 Dewpt 68 66 65 65 64 64 61 63 62 63 61 64 63 64 63 66 PWind dir N NE NE NE E E W W Wind char LT LT LT LT LT LT LT LT Avg clouds B1 B1 B1 B1 SC B1 B1 SC FW FW CL FW CL FW FW FW PoP 12hr 30 40 10 10 5 5 0 5 Rain shwrs C C S C Tstms S C $$ MDZ003-092000- Hagerstown Airport-Washington MD 39.71N 77.73W Elev. 705 ft 500 AM EDT Thu Jul 9 2026 Date Thu 07/09/26 Fri 07/10/26 Sat 07/11/26 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 68 86 67 83 Temp 70 72 80 83 83 81 73 71 70 73 83 86 84 80 73 70 68 71 78 82 83 80 Dewpt 69 72 73 72 72 72 73 71 69 70 71 71 70 71 72 70 68 70 69 69 67 68 RH 97100 79 70 70 74100100 97 90 67 61 63 74 97100100 97 74 65 59 67 Wind dir S S SW W W SW S SW SW S W W W W W NW NW NW N N N NE Wind spd 4 3 2 3 4 2 2 2 2 3 5 6 6 3 2 2 2 4 4 4 5 2 Clouds B2 B1 B1 B2 B1 SC SC FW SC SC B1 OV B2 SC B1 B1 B1 B1 B1 B1 B1 B1 PoP 12hr 80 10 60 20 50 QPF 12hr 0.25 0 0.05 0.01 0.05 Snow 12hr 00-00 00-00 00-00 Rain shwrs L C L C S L L S S C C C C Tstms S C L CS C C S C C Obvis PF PF Heat index 84 88 88 85 88 91 88 83 85 86 83 Max heat 88 92 91 91 85 86 Date Sun 07/12/26 Mon 07/13/26 Tue 07/14/26 Wed 07/15/26 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 83 63 84 63 89 67 94 Temp 67 67 81 78 67 68 81 79 67 68 86 83 71 72 91 87 Dewpt 63 62 64 64 62 63 62 64 61 63 64 66 65 67 67 68 PWind dir NE E E SE S SW SW W Wind char LT LT LT LT LT LT LT GN Avg clouds B1 SC SC SC SC SC FW FW FW FW FW FW FW FW FW FW PoP 12hr 10 10 20 5 5 0 0 5 Rain shwrs S $$ MDZ017-092000- Patuxent River NAS MD 38.29N 76.41W Elev. 39 ft 500 AM EDT Thu Jul 9 2026 Date Thu 07/09/26 Fri 07/10/26 Sat 07/11/26 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 88 75 93 75 87 Temp 75 78 83 86 86 81 78 77 76 80 89 93 93 85 80 77 76 79 86 87 86 81 Dewpt 73 74 75 76 76 75 75 75 74 74 73 73 73 74 74 74 74 73 73 72 72 71 RH 94 88 77 72 72 82 91 94 94 82 59 52 52 70 82 90 94 82 65 61 63 72 Wind dir S S S SE S SW W W W W W SW SW W W W NW NW NW N N N Wind spd 5 5 6 8 8 6 4 4 4 4 5 6 6 4 3 4 4 4 6 6 5 4 Clouds B2 B2 B1 B1 B2 B1 SC CL FW FW FW SC B1 B1 B1 B1 B1 B1 B1 B2 B2 B2 PoP 12hr 80 30 40 50 70 QPF 12hr 0.44 0.05 0.06 0.17 0.33 Snow 12hr 00-00 00-00 00-00 Rain shwrs S L C C D C S C C C S S C C L L C Tstms S S C C L C C C S C C C Heat index 90 96 96 87 84 97102102 93 84 93 94 92 85 Max heat 96 99 84 102 102 88 94 94 Date Sun 07/12/26 Mon 07/13/26 Tue 07/14/26 Wed 07/15/26 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 73 89 71 83 70 87 73 94 Temp 75 77 87 78 73 74 81 79 72 74 84 82 74 77 90 88 Dewpt 71 71 66 65 66 67 61 63 65 66 63 64 66 67 68 69 PWind dir NE NE E E E SW SW SW Wind char LT GN LT LT LT LT LT GN Avg clouds B2 B1 B1 SC B1 SC SC SC SC SC FW CL FW FW FW FW PoP 12hr 30 10 5 5 5 5 5 5 Rain shwrs C Tstms C $$ WVZ502-092000- Petersburg WV 38.99N 79.15W Elev. 963 ft 500 AM EDT Thu Jul 9 2026 Date Thu 07/09/26 Fri 07/10/26 Sat 07/11/26 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 65 86 65 81 Temp 67 70 82 83 85 78 70 68 67 69 81 85 85 77 70 67 66 67 76 80 81 75 Dewpt 67 69 72 72 72 70 69 67 67 68 70 70 70 70 70 67 66 67 69 69 69 69 RH 100 97 72 70 65 76 97 97100 97 69 61 61 79100100100100 79 69 67 82 Wind dir S N N W W SW SW S S SW W W W W W W N N NW N N N Wind spd 1 0 0 2 2 2 3 2 2 2 3 5 4 2 2 1 0 0 1 2 3 2 Clouds B1 B1 B1 OV B2 SC FW FW FW B1 B2 B2 B2 B1 B1 B1 B1 B2 B2 B2 B2 B2 PoP 12hr 80 10 60 30 70 QPF 12hr 0.16 0 0.02 0.01 0.36 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C D L S L L C C S S L L L L S Tstms S C L C S C C S S C C S Obvis PF PF Heat index 87 88 91 85 90 90 83 84 Max heat 88 91 90 91 83 84 Date Sun 07/12/26 Mon 07/13/26 Tue 07/14/26 Wed 07/15/26 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 83 60 84 60 90 64 93 Temp 64 64 81 75 63 64 81 77 63 65 87 81 66 68 91 83 Dewpt 64 64 65 66 62 63 63 65 61 63 64 68 63 65 67 70 PWind dir N NE E E S NW SW W Wind char LT LT LT LT LT LT LT LT Avg clouds B1 B1 B1 B1 B1 SC B1 SC FW FW FW FW FW FW FW FW PoP 12hr 20 40 10 20 5 5 0 5 Rain shwrs S C C S S Tstms S S S $$ MDZ014-092000- Annapolis MD 38.99N 76.49W Elev. 7 ft 500 AM EDT Thu Jul 9 2026 Date Thu 07/09/26 Fri 07/10/26 Sat 07/11/26 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 87 74 90 74 86 Temp 74 76 83 87 86 81 76 76 75 78 86 90 88 82 78 76 74 77 84 86 86 81 Dewpt 73 73 75 76 75 74 76 75 73 72 73 73 72 73 75 74 73 72 71 70 70 71 RH 97 90 77 70 70 79100 97 94 82 65 58 59 74 91 94 97 85 65 59 59 72 Wind dir S S S S S W W W W W W W W W N N NW NW N N N NE Wind spd 4 6 8 10 8 4 1 3 4 4 6 9 8 4 0 0 3 4 8 8 6 4 Clouds B2 B1 B1 B1 OV B2 FW CL FW FW SC B1 OV B1 B1 B1 B1 B1 SC B1 B1 B1 PoP 12hr 90 40 50 40 50 QPF 12hr 0.38 0.08 0.03 0.07 0.01 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C C C D C C C C S S S S C C S Tstms S S C C L C C C S C C S Heat index 90 98 95 86 93 98 95 87 89 91 91 85 Max heat 98 98 98 98 86 91 91 Flood A A A Date Sun 07/12/26 Mon 07/13/26 Tue 07/14/26 Wed 07/15/26 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 72 87 70 87 69 89 73 96 Temp 74 75 86 81 72 74 85 81 72 74 88 84 75 78 95 90 Dewpt 71 67 64 66 66 67 63 65 65 66 65 66 66 67 71 71 PWind dir NE NE E E S SW SW W Wind char LT GN LT LT LT LT LTGN Avg clouds B1 B1 SC SC SC SC SC SC FW FW FW FW FW FW FW FW PoP 12hr 20 10 5 5 5 0 0 5 Rain shwrs S Tstms S $$