Point Forecast Matrices
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
308 FOUS51 KLWX 141201 PFMLWX Point Forecast Matrices National Weather Service Baltimore MD/Washington DC 801 AM EDT Mon Sep 14 2026 VAZ054-142000- Reagan National Airport-Arlington VA 38.86N 77.03W Elev. 66 ft 801 AM EDT Mon Sep 14 2026 Date Mon 09/14/26 Tue 09/15/26 Wed 09/16/26 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 82 62 86 Temp 74 79 80 72 66 62 60 60 73 80 81 75 67 64 62 64 76 83 84 77 Dewpt 59 55 52 50 51 51 50 49 52 53 55 55 57 60 60 60 60 61 62 62 RH 59 44 38 46 58 67 69 67 48 39 41 50 70 87 93 87 58 47 48 60 Wind dir N N N N NE NE N NE E SE SE SE SE S S S S S S SE Wind spd 12 11 11 8 5 6 5 6 5 5 9 9 8 5 4 4 6 6 8 10 Clouds CL CL CL FW CL FW FW FW FW FW FW FW FW FW FW CL CL 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 80 80 81 83 85 Max heat 80 80 81 83 85 Date Thu 09/17/26 Fri 09/18/26 Sat 09/19/26 Sun 09/20/26 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 88 70 89 69 86 69 84 Temp 69 67 85 81 72 71 86 82 72 70 83 80 72 70 80 77 Dewpt 62 62 63 63 63 64 67 66 65 63 64 65 66 65 65 64 PWind dir S S SW N NE E SE SE Wind char LT GN GN GN GN GN GN GN Avg clouds FW FW FW FW SC SC SC SC B1 B1 B1 SC SC B1 B1 B1 PoP 12hr 0 5 5 20 30 20 20 40 Rain shwrs S C S S S C C $$ MDZ013-142000- Baltimore/Washington Airport-Anne Arundel MD 39.19N 76.67W Elev. 154 ft 801 AM EDT Mon Sep 14 2026 Date Mon 09/14/26 Tue 09/15/26 Wed 09/16/26 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 79 57 79 60 84 Temp 74 77 77 69 64 61 58 59 70 76 78 72 65 62 60 62 75 81 82 75 Dewpt 61 53 50 51 51 50 48 48 51 55 56 59 61 61 60 62 64 65 65 65 RH 64 43 39 53 63 67 69 67 51 48 47 64 87 97100100 69 58 56 71 Wind dir N N N N N N N NE E SE SE SE S S S SW S S SE S Wind spd 11 12 11 8 4 3 3 3 4 5 5 3 3 2 1 2 4 5 6 3 Clouds CL CL CL CL CL FW SC FW SC FW CL FW FW FW FW FW FW FW FW FW PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Heat index 83 84 Max heat 83 84 Date Thu 09/17/26 Fri 09/18/26 Sat 09/19/26 Sun 09/20/26 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 64 86 68 87 66 83 67 81 Temp 66 66 83 79 70 70 85 79 69 67 81 77 69 68 78 75 Dewpt 63 64 67 66 65 66 70 69 65 64 67 67 66 66 67 66 PWind dir S S SW N NE E SE E Wind char LT LT LT LT LT LT LT GN Avg clouds FW FW FW FW SC SC SC SC SC B1 B1 B1 B1 B1 B1 B1 PoP 12hr 0 5 5 20 20 20 30 40 Rain shwrs S S S C C C C $$ MDZ011-142000- Baltimore Inner Harbor-Baltimore City MD 39.28N 76.61W Elev. 20 ft 801 AM EDT Mon Sep 14 2026 Date Mon 09/14/26 Tue 09/15/26 Wed 09/16/26 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 79 58 79 62 84 Temp 75 78 77 70 65 61 59 60 70 76 77 71 66 64 62 64 76 82 82 75 Dewpt 56 52 50 50 50 50 48 48 50 50 51 54 57 59 60 59 60 60 61 61 RH 52 40 39 49 58 67 67 64 49 40 40 55 73 84 93 84 58 47 49 62 Wind dir N N N N N N N NE E SE SE SE SE S S S S S SE SE Wind spd 12 11 11 8 4 3 3 3 3 5 5 2 3 1 1 1 4 5 6 3 Clouds FW CL CL FW 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 82 83 Max heat 82 83 Date Thu 09/17/26 Fri 09/18/26 Sat 09/19/26 Sun 09/20/26 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 87 71 88 68 84 69 82 Temp 69 69 84 80 72 72 85 80 71 69 82 78 71 70 79 75 Dewpt 62 61 62 63 64 64 66 65 64 62 62 63 65 64 62 62 PWind dir S S SW N NE E SE NE Wind char LT LT LT LT LT LT LT GN Avg clouds FW FW FW FW SC SC SC SC SC B1 B1 B1 B1 B1 B1 B1 PoP 12hr 0 5 5 20 20 20 30 40 Rain shwrs S S S C C C C $$ WVZ052-142000- Martinsburg Airport-Berkeley WV 39.41N 77.98W Elev. 558 ft 801 AM EDT Mon Sep 14 2026 Date Mon 09/14/26 Tue 09/15/26 Wed 09/16/26 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 77 51 79 55 85 Temp 72 76 76 65 58 55 52 53 69 77 79 71 62 58 56 57 74 83 84 75 Dewpt 56 51 50 50 49 49 47 47 50 52 53 55 55 55 55 56 59 62 63 63 RH 57 42 40 58 72 80 83 80 51 42 41 57 78 90 96 96 59 49 49 66 Wind dir N N N N N N N N SE S S SE S S N N S S S SE Wind spd 12 11 10 4 0 0 0 0 5 8 9 5 5 1 0 0 2 4 5 3 Clouds SC FW FW CL FW FW SC SC FW FW CL SC FW FW FW FW FW FW FW FW PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Heat index 84 85 Max heat 84 86 Date Thu 09/17/26 Fri 09/18/26 Sat 09/19/26 Sun 09/20/26 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 62 87 67 85 63 82 63 79 Temp 65 64 85 79 70 68 83 78 67 64 80 75 66 66 77 72 Dewpt 62 62 66 67 66 67 68 66 64 63 63 63 63 64 64 62 PWind dir SE S W N NE E SE W Wind char LT LT LT LT LT LT LT GN Avg clouds FW FW FW SC SC SC B1 B1 SC B1 B1 B1 B1 B1 B1 B1 PoP 12hr 0 20 10 20 20 20 40 50 Rain shwrs S S S S C C C C Tstms S S $$ VAZ506-142000- Washington Dulles Airport-Loudoun VA 38.96N 77.45W Elev. 321 ft 801 AM EDT Mon Sep 14 2026 Date Mon 09/14/26 Tue 09/15/26 Wed 09/16/26 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 53 82 57 86 Temp 75 79 77 67 61 57 54 55 72 79 79 71 64 59 58 60 76 83 84 76 Dewpt 62 54 51 52 51 51 48 48 51 56 59 59 59 59 58 60 64 66 67 66 RH 64 42 40 59 70 80 80 77 48 45 50 66 84100100100 66 57 57 71 Wind dir N N N N NE N N N SE SE S S S S S S S S S S Wind spd 12 11 11 5 3 2 2 2 3 4 5 5 4 3 2 3 5 5 4 4 Clouds FW FW CL CL SC FW SC FW SC FW CL FW FW FW FW CL 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 85 87 Max heat 81 85 87 Date Thu 09/17/26 Fri 09/18/26 Sat 09/19/26 Sun 09/20/26 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 88 67 88 65 85 65 82 Temp 65 65 86 80 70 69 85 79 69 66 83 77 68 67 79 74 Dewpt 63 62 68 68 65 66 72 69 66 64 68 68 66 66 69 67 PWind dir S S SW N NE SE SE S Wind char LT LT LT LT LT LT LT GN Avg clouds FW FW FW FW FW SC SC SC SC B1 B1 B1 B1 B1 B1 B1 PoP 12hr 0 5 10 20 20 20 30 40 Rain shwrs S S S C S C C $$ VAZ037-142000- Charlottesville Airport-Albemarle VA 38.14N 78.45W Elev. 640 ft 801 AM EDT Mon Sep 14 2026 Date Mon 09/14/26 Tue 09/15/26 Wed 09/16/26 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 82 54 80 56 85 Temp 77 81 80 69 62 58 56 56 71 78 80 71 63 58 56 58 75 83 83 74 Dewpt 63 60 56 53 50 50 48 49 52 54 57 59 58 58 56 57 60 62 63 64 RH 62 49 44 57 65 75 74 77 51 43 45 66 84100100 96 60 49 51 71 Wind dir NE N N NE NE N N N E SE SE N N N N N S S SE N Wind spd 9 8 9 6 4 3 3 3 3 4 4 0 0 0 0 0 4 4 4 0 Clouds FW FW FW CL CL FW SC FW FW FW FW FW FW FW FW CL CL CL FW FW PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Heat index 82 80 80 84 84 Max heat 82 81 80 84 86 Date Thu 09/17/26 Fri 09/18/26 Sat 09/19/26 Sun 09/20/26 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 61 87 66 88 65 84 65 83 Temp 64 63 86 78 69 68 86 78 69 66 82 76 68 66 80 74 Dewpt 63 62 64 66 64 64 68 70 67 64 65 67 67 66 67 67 PWind dir N S S E NE SE S W Wind char LT LT LT LT LT LT LT LT Avg clouds FW FW CL FW FW SC FW B1 SC B1 SC SC SC SC SC B1 PoP 12hr 0 5 0 40 20 20 20 40 Rain shwrs C S S S C Tstms S S $$ MDZ003-142000- Hagerstown Airport-Washington MD 39.71N 77.73W Elev. 705 ft 801 AM EDT Mon Sep 14 2026 Date Mon 09/14/26 Tue 09/15/26 Wed 09/16/26 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 76 51 80 56 85 Temp 69 75 74 64 58 54 52 53 68 77 79 70 62 58 57 59 73 82 83 75 Dewpt 57 50 49 50 49 47 46 46 49 53 55 57 56 56 56 58 62 64 65 66 RH 66 41 41 60 72 77 80 77 51 43 44 63 81 93 96 96 68 55 55 74 Wind dir N N N N NE N N NE SE S S SE SE SE SE SE S S S SE Wind spd 12 12 11 5 3 2 2 1 4 6 6 4 4 4 3 2 3 4 4 3 Clouds FW FW FW FW FW FW SC 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 85 Max heat 83 86 Date Thu 09/17/26 Fri 09/18/26 Sat 09/19/26 Sun 09/20/26 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 67 85 63 82 63 79 Temp 66 65 85 79 70 69 82 76 65 64 79 75 66 65 76 72 Dewpt 63 62 68 69 66 67 69 68 64 63 65 65 63 64 66 64 PWind dir SE S E N NE E SE NW Wind char LT LT LT LT LT LT LT GN Avg clouds FW FW SC SC SC SC B1 SC SC B1 B1 B1 B1 B1 B1 B1 PoP 12hr 0 20 10 20 10 20 40 50 Rain shwrs S S S C C C C Tstms S S $$ MDZ017-142000- Patuxent River NAS MD 38.29N 76.41W Elev. 39 ft 801 AM EDT Mon Sep 14 2026 Date Mon 09/14/26 Tue 09/15/26 Wed 09/16/26 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 80 63 79 65 81 Temp 76 78 77 72 69 66 65 65 73 77 78 72 69 67 65 68 76 79 78 73 Dewpt 65 61 58 54 54 55 54 56 56 56 57 61 62 63 62 63 63 62 62 63 RH 69 56 52 53 59 68 68 73 55 48 48 68 78 87 90 84 64 56 58 71 Wind dir N N N N NE NE NE NE E SE SE SE SE S S S SE SE SE SE Wind spd 18 16 14 13 9 8 8 6 5 3 3 3 5 3 2 2 3 5 5 4 Wind gust 28 Clouds FW CL CL CL CL FW CL FW FW FW FW CL FW FW FW FW FW CL CL CL PoP 12hr 5 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Date Thu 09/17/26 Fri 09/18/26 Sat 09/19/26 Sun 09/20/26 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 66 83 69 85 69 83 70 82 Temp 68 69 81 77 72 72 83 80 73 72 81 77 72 71 80 76 Dewpt 65 64 64 65 67 66 70 69 69 67 68 68 68 68 67 67 PWind dir S S SW N NE E SE SE Wind char LT LT LT LT LT GN LT GN Avg clouds CL FW CL CL FW SC FW FW SC B1 SC SC SC B1 SC B1 PoP 12hr 0 0 0 10 20 20 20 30 Rain shwrs S S S S S C $$ WVZ502-142000- Petersburg WV 38.99N 79.15W Elev. 963 ft 801 AM EDT Mon Sep 14 2026 Date Mon 09/14/26 Tue 09/15/26 Wed 09/16/26 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 50 84 56 89 Temp 71 76 77 64 57 54 51 52 68 80 83 73 64 58 56 59 78 87 87 76 Dewpt 60 54 51 51 49 49 47 48 53 59 61 61 59 57 56 57 66 68 69 69 RH 68 46 40 63 75 83 86 86 59 49 47 66 84 96100 93 67 53 55 79 Wind dir N N N N N N N SW S SE SE SE S S SW SW N E SE S Wind spd 6 8 6 3 0 0 0 1 2 3 4 2 3 3 1 1 0 2 2 1 Clouds FW FW FW FW SC FW SC SC SC FW FW FW FW FW FW FW FW FW FW SC PoP 12hr 0 0 0 0 10 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Obvis PF Heat index 81 83 91 91 Max heat 81 83 91 94 Date Thu 09/17/26 Fri 09/18/26 Sat 09/19/26 Sun 09/20/26 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 91 66 87 61 85 62 82 Temp 67 64 89 80 69 67 84 77 66 62 82 75 65 64 78 73 Dewpt 64 63 71 71 67 67 71 69 65 62 68 67 64 63 68 66 PWind dir S W W NW N SW SW W Wind char LT LT LT LT LT LT LT LT Avg clouds FW FW SC B1 SC SC SC B1 B1 B1 B1 B1 B1 B1 B1 B1 PoP 12hr 0 40 10 50 20 30 30 50 Rain shwrs C S C S S C S C C C Tstms C S S $$ MDZ014-142000- Annapolis MD 38.99N 76.49W Elev. 7 ft 801 AM EDT Mon Sep 14 2026 Date Mon 09/14/26 Tue 09/15/26 Wed 09/16/26 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 78 61 77 64 80 Temp 76 77 77 72 67 65 63 63 72 75 77 73 67 66 64 66 76 79 80 76 Dewpt 60 56 52 52 53 53 51 52 54 53 53 57 63 63 62 61 62 62 62 62 RH 58 48 42 49 61 65 65 67 53 46 43 57 87 90 93 84 62 56 54 62 Wind dir N N N N N NE NE NE E SE S SE SE S S S S S S S Wind spd 12 11 12 9 8 6 6 6 5 4 5 2 6 4 2 2 5 8 8 4 Clouds CL FW CL FW CL CL FW FW FW FW CL SC FW FW FW FW FW FW FW FW PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Heat index 81 Max heat 81 Date Thu 09/17/26 Fri 09/18/26 Sat 09/19/26 Sun 09/20/26 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 66 82 68 87 68 83 67 82 Temp 68 68 82 79 71 70 84 80 71 69 81 77 70 70 80 76 Dewpt 65 63 64 66 65 65 70 69 66 65 68 67 67 66 67 66 PWind dir S S SW NE NE E SE E Wind char LT GN LT LT LT GN LT GN Avg clouds FW FW FW FW SC SC SC SC B1 B1 B1 B1 B1 B1 B1 B1 PoP 12hr 0 0 5 20 20 20 30 40 Rain shwrs S S S C S S C $$