Point Forecast Matrices
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
173 FOUS51 KLWX 071306 PFMLWX Point Forecast Matrices National Weather Service Baltimore MD/Washington DC 906 AM EDT Mon Sep 7 2026 VAZ054-072000- Reagan National Airport-Arlington VA 38.86N 77.03W Elev. 66 ft 906 AM EDT Mon Sep 7 2026 Date Mon 09/07/26 Tue 09/08/26 Wed 09/09/26 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 63 86 67 89 Temp 76 82 83 77 70 66 64 65 78 84 85 79 72 69 67 68 79 86 88 83 Dewpt 61 57 57 56 56 56 57 57 60 58 59 58 59 59 59 59 62 62 62 62 RH 60 43 41 48 61 70 78 75 54 41 41 49 64 70 75 73 56 45 42 49 Wind dir NE NE E E E N W W SW SW S S S S S S S S S S Wind spd 6 5 5 6 2 0 3 3 5 5 6 9 9 9 9 9 11 14 14 13 Clouds FW FW SC SC SC FW FW SC SC SC SC SC 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 84 85 86 88 84 Max heat 82 82 84 85 86 88 Date Thu 09/10/26 Fri 09/11/26 Sat 09/12/26 Sun 09/13/26 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 74 90 70 82 67 84 70 88 Temp 75 74 89 82 73 71 80 76 68 68 81 77 70 72 86 82 Dewpt 63 65 67 69 67 63 59 59 61 63 65 66 67 67 67 66 PWind dir SW SW NW N NE SE S SW Wind char GN GN GN GN LT GN GN GN Avg clouds FW FW SC B1 B1 B1 SC FW FW FW SC SC SC SC SC FW PoP 12hr 0 50 50 10 5 20 10 10 Rain shwrs C C S S Tstms S S $$ MDZ013-072000- Baltimore/Washington Airport-Anne Arundel MD 39.19N 76.67W Elev. 154 ft 906 AM EDT Mon Sep 7 2026 Date Mon 09/07/26 Tue 09/08/26 Wed 09/09/26 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 81 61 84 64 88 Temp 74 79 79 72 67 63 62 63 77 82 82 75 70 66 64 66 78 86 87 81 Dewpt 64 59 59 60 59 58 57 58 62 61 63 64 62 61 60 61 65 65 66 66 RH 71 50 50 66 75 84 84 84 60 49 53 69 76 84 87 84 64 50 50 60 Wind dir NE E E SE N NW NW NW W SW S S S SW SW SW S S S S Wind spd 4 4 3 2 1 1 1 2 2 3 5 4 3 3 3 4 6 10 11 10 Wind gust 20 Clouds FW FW FW FW SC SC FW FW SC SC SC B1 SC SC SC FW SC SC SC FW PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Heat index 83 83 88 89 83 Max heat 81 83 85 88 90 Date Thu 09/10/26 Fri 09/11/26 Sat 09/12/26 Sun 09/13/26 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 72 89 67 82 65 83 68 86 Temp 74 74 88 80 71 67 79 76 67 67 81 76 70 70 84 79 Dewpt 65 67 70 71 67 64 62 63 63 65 67 68 68 69 70 68 PWind dir SW SW NW N N SE S SW Wind char GN GN LT LT LT LT LT LT Avg clouds FW FW SC B1 B1 B1 SC FW FW FW FW SC SC SC SC SC PoP 12hr 0 50 40 10 5 20 10 10 Rain shwrs C C S Tstms S S $$ MDZ011-072000- Baltimore Inner Harbor-Baltimore City MD 39.28N 76.61W Elev. 20 ft 906 AM EDT Mon Sep 7 2026 Date Mon 09/07/26 Tue 09/08/26 Wed 09/09/26 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 62 85 67 89 Temp 75 80 80 73 68 64 63 64 78 83 83 75 71 68 67 69 79 86 88 83 Dewpt 58 54 54 54 54 56 55 55 56 57 59 59 58 59 59 57 60 61 62 62 RH 55 41 41 51 61 75 75 73 47 41 44 58 63 73 75 66 52 43 42 49 Wind dir NE NE E E N N N NW W S S S S S SW SW S S S S Wind spd 3 3 3 2 0 0 0 1 1 3 5 3 2 2 2 3 6 10 11 11 Clouds FW FW FW SC SC SC FW SC SC SC SC B1 SC SC SC SC SC 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 Heat index 80 80 83 86 88 84 Max heat 80 81 82 84 86 88 Date Thu 09/10/26 Fri 09/11/26 Sat 09/12/26 Sun 09/13/26 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 90 68 83 67 84 70 87 Temp 76 75 89 81 72 69 81 76 68 68 81 77 71 72 85 80 Dewpt 63 65 67 67 66 60 57 58 61 62 63 64 67 67 66 65 PWind dir SW W NW N N SE S SW Wind char GN GN LT LT LT LT LT LT Avg clouds FW SC SC B1 B1 B1 SC FW FW FW FW SC SC SC SC FW PoP 12hr 0 50 30 5 5 20 10 10 Rain shwrs C C S Tstms S S $$ WVZ052-072000- Martinsburg Airport-Berkeley WV 39.41N 77.98W Elev. 558 ft 906 AM EDT Mon Sep 7 2026 Date Mon 09/07/26 Tue 09/08/26 Wed 09/09/26 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 80 55 84 60 87 Temp 73 79 80 71 61 59 57 58 75 82 82 73 67 63 61 62 78 86 87 80 Dewpt 58 54 52 54 53 53 52 54 58 59 58 59 58 57 56 58 61 62 63 62 RH 59 42 38 55 75 80 83 86 55 46 44 62 73 81 84 87 56 45 45 54 Wind dir N NE NE N N N N N N S S SE S S S S S S S S Wind spd 4 4 3 0 0 0 0 0 0 2 3 4 4 3 3 2 5 9 8 6 Clouds FW FW FW SC FW FW SC SC SC B1 SC SC SC SC SC SC SC SC SC FW PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Heat index 80 82 82 86 88 81 Max heat 80 82 84 86 88 Date Thu 09/10/26 Fri 09/11/26 Sat 09/12/26 Sun 09/13/26 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 69 85 62 81 60 84 63 86 Temp 72 71 84 77 67 63 79 72 63 63 82 76 66 65 84 78 Dewpt 62 65 69 67 64 62 58 58 58 60 64 64 64 65 66 64 PWind dir SW W NW N N S S SW Wind char LT GN LT LT LT LT LT LT Avg clouds FW SC B1 B2 B1 B1 FW FW FW FW SC SC SC SC SC FW PoP 12hr 10 60 30 5 5 10 10 10 Rain shwrs C L C Tstms C $$ VAZ506-072000- Washington Dulles Airport-Loudoun VA 38.96N 77.45W Elev. 321 ft 906 AM EDT Mon Sep 7 2026 Date Mon 09/07/26 Tue 09/08/26 Wed 09/09/26 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 58 85 62 88 Temp 75 81 79 71 65 61 59 60 77 83 82 75 69 64 63 64 79 86 87 81 Dewpt 64 61 59 59 59 58 57 59 64 64 64 64 62 60 59 61 65 67 66 66 RH 69 51 50 66 81 90 93 96 64 53 55 69 78 87 87 90 62 53 50 60 Wind dir N N N NE N N N NW SW SW S S S S S S S S S S Wind spd 4 5 4 2 0 0 0 1 2 3 3 4 4 4 5 4 6 10 10 10 Clouds CL FW FW FW SC FW FW SC B1 SC SC SC 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 Heat index 82 84 83 89 89 83 Max heat 82 82 84 85 89 90 Date Thu 09/10/26 Fri 09/11/26 Sat 09/12/26 Sun 09/13/26 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 89 65 82 63 84 66 87 Temp 73 72 88 79 69 66 80 74 64 65 82 76 68 68 85 79 Dewpt 65 67 72 72 68 65 65 64 62 64 70 69 67 68 72 69 PWind dir SW W NW N N S S SW Wind char GN GN LT LT LT LT LT LT Avg clouds FW FW SC B1 B1 B1 SC FW FW FW SC SC SC SC SC FW PoP 12hr 0 50 50 10 5 20 10 10 Rain shwrs C C S Tstms S S $$ VAZ037-072000- Charlottesville Airport-Albemarle VA 38.14N 78.45W Elev. 640 ft 906 AM EDT Mon Sep 7 2026 Date Mon 09/07/26 Tue 09/08/26 Wed 09/09/26 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 81 59 84 60 87 Temp 75 81 80 71 65 62 60 61 77 84 82 73 68 63 61 62 80 87 85 77 Dewpt 61 60 59 60 59 58 58 58 61 59 59 59 59 58 58 58 62 63 63 63 RH 62 49 49 68 81 87 93 90 58 43 46 62 73 84 90 87 54 45 48 62 Wind dir NE NE E N N N N N S S S S N N N SW SW S S S Wind spd 5 6 5 0 0 0 0 0 3 5 5 3 0 0 0 3 6 9 10 9 Clouds CL FW FW SC B1 FW SC FW SC SC SC SC FW FW FW FW FW FW FW FW PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Obvis PF Heat index 82 81 84 82 81 88 86 Max heat 82 81 84 84 88 88 Date Thu 09/10/26 Fri 09/11/26 Sat 09/12/26 Sun 09/13/26 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 67 89 66 84 63 85 65 88 Temp 71 69 89 79 70 66 82 75 67 64 84 77 68 67 87 78 Dewpt 64 66 67 70 69 66 64 63 63 63 67 67 67 67 68 67 PWind dir SW SW W NE E S SE SW Wind char GN GN LT LT LT LT LT LT Avg clouds FW FW FW B1 B1 B1 SC FW FW SC SC SC SC SC FW FW PoP 12hr 0 30 40 20 10 20 10 5 Rain shwrs C C S S Tstms C S S $$ MDZ003-072000- Hagerstown Airport-Washington MD 39.71N 77.73W Elev. 705 ft 906 AM EDT Mon Sep 7 2026 Date Mon 09/07/26 Tue 09/08/26 Wed 09/09/26 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 56 83 61 87 Temp 72 78 78 68 61 58 57 58 73 81 82 74 67 63 62 63 76 85 86 80 Dewpt 60 57 55 56 53 52 51 54 60 62 61 61 60 58 57 59 63 66 66 64 RH 66 48 45 65 75 80 80 86 64 53 49 64 78 84 84 87 64 53 51 58 Wind dir N N NE NE NE N N N SW SW S SE SE S S S S S S S Wind spd 4 4 4 2 2 0 0 1 1 3 3 3 3 4 4 4 4 8 8 6 Clouds FW FW FW SC SC FW SC SC SC SC B1 SC SC SC SC SC SC SC 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 82 83 87 88 82 Max heat 82 83 87 89 Date Thu 09/10/26 Fri 09/11/26 Sat 09/12/26 Sun 09/13/26 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 61 79 60 82 63 85 Temp 71 70 83 76 66 62 76 70 62 62 79 74 66 65 83 77 Dewpt 63 66 71 69 64 62 61 60 59 61 66 66 65 65 69 66 PWind dir S W NW NW NE S SE SW Wind char LT GN LT LT LT LT LT LT Avg clouds FW SC B1 B2 B2 B1 FW FW FW FW SC SC SC SC SC FW PoP 12hr 10 60 30 5 5 10 10 10 Rain shwrs C L C Tstms S $$ MDZ017-072000- Patuxent River NAS MD 38.29N 76.41W Elev. 39 ft 906 AM EDT Mon Sep 7 2026 Date Mon 09/07/26 Tue 09/08/26 Wed 09/09/26 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 80 66 83 67 87 Temp 76 79 78 72 70 69 67 68 78 82 81 75 72 69 67 69 80 85 87 80 Dewpt 64 61 59 59 61 63 62 63 62 61 61 61 63 62 61 63 65 65 66 67 RH 66 54 52 64 73 81 84 84 58 49 51 62 73 78 81 81 60 51 50 65 Wind dir NE NE NE E SE S W NW W S S S S SW SW SW SW S S S Wind spd 6 6 4 2 2 2 3 4 3 3 5 5 6 6 5 5 8 10 12 11 Clouds FW FW FW FW FW SC FW FW FW SC SC SC FW SC FW FW FW FW FW FW PoP 12hr 5 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Heat index 83 82 82 87 89 82 Max heat 81 83 83 87 89 Date Thu 09/10/26 Fri 09/11/26 Sat 09/12/26 Sun 09/13/26 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 73 91 71 81 69 83 70 85 Temp 75 75 91 81 74 72 79 76 72 72 81 78 74 73 83 80 Dewpt 67 68 70 72 70 67 64 63 66 67 68 69 70 71 71 70 PWind dir SW SW W N NE SE S S Wind char GN GN LT LT LT LT LT LT Avg clouds FW FW FW B1 B1 B1 SC FW FW FW SC B1 SC SC FW FW PoP 12hr 0 40 50 10 10 30 10 10 Rain shwrs C C S C Tstms S S $$ WVZ502-072000- Petersburg WV 38.99N 79.15W Elev. 963 ft 906 AM EDT Mon Sep 7 2026 Date Mon 09/07/26 Tue 09/08/26 Wed 09/09/26 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 54 87 59 89 Temp 72 79 81 72 63 58 56 56 77 85 86 76 67 62 60 61 81 87 88 79 Dewpt 61 61 60 60 58 56 54 55 62 61 61 61 60 58 56 57 64 65 66 66 RH 68 54 49 66 84 93 93 96 60 45 43 60 78 87 87 87 56 48 48 64 Wind dir E NE E E N N S SW S S SE SE S SW SW SW SW W W SW Wind spd 1 2 3 2 0 0 1 1 1 1 2 1 3 3 3 3 2 4 5 3 Clouds FW FW SC B1 FW SC SC SC SC SC SC SC SC SC SC FW FW SC SC FW PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Obvis PF PF Heat index 82 85 86 83 89 90 Max heat 82 85 86 89 92 Date Thu 09/10/26 Fri 09/11/26 Sat 09/12/26 Sun 09/13/26 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 86 61 83 59 87 62 88 Temp 69 69 85 76 65 61 80 73 61 61 84 76 66 64 85 77 Dewpt 63 64 70 69 65 61 64 63 60 60 66 67 64 63 67 66 PWind dir SW W W N W S SW W Wind char LT LT LT LT LT LT LT LT Avg clouds FW SC SC B2 B2 B2 SC SC FW SC SC SC B1 SC SC SC PoP 12hr 5 60 40 10 5 20 10 10 Rain shwrs L C S S Tstms C S $$ MDZ014-072000- Annapolis MD 38.99N 76.49W Elev. 7 ft 906 AM EDT Mon Sep 7 2026 Date Mon 09/07/26 Tue 09/08/26 Wed 09/09/26 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 80 64 83 67 86 Temp 75 79 79 74 69 67 64 66 78 82 82 77 72 69 67 69 79 86 86 82 Dewpt 63 57 55 56 60 61 60 59 60 59 60 60 63 62 60 60 64 64 66 66 RH 66 47 44 53 73 81 87 78 54 46 47 56 73 78 78 73 60 48 51 58 Wind dir NE NE E N N N N NW W S S S S SW SW SW S S S S Wind spd 6 6 4 0 0 0 0 1 3 5 8 6 5 5 5 6 10 13 13 11 Clouds FW FW CL FW SC SC FW SC SC SC SC B2 SC SC SC SC FW SC FW FW PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Heat index 82 82 87 88 84 Max heat 80 82 83 87 88 Date Thu 09/10/26 Fri 09/11/26 Sat 09/12/26 Sun 09/13/26 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 74 89 69 83 67 84 69 87 Temp 75 75 89 81 72 70 80 77 69 69 82 78 71 72 85 80 Dewpt 66 66 70 71 68 64 62 62 64 65 67 68 69 69 71 69 PWind dir SW SW NW N NE SE S SW Wind char GN GN LT LT LT LT LT LT Avg clouds FW FW SC B1 B2 B1 SC FW FW FW FW SC SC SC SC SC PoP 12hr 0 50 50 10 5 20 10 10 Rain shwrs C C S S Tstms S S $$