Point Forecast Matrices
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
095 FOUS51 KLWX 181501 PFMLWX Point Forecast Matrices National Weather Service Baltimore MD/Washington DC 1101 AM EDT Fri Sep 18 2026 VAZ054-182000- Reagan National Airport-Arlington VA 38.86N 77.03W Elev. 66 ft 1101 AM EDT Fri Sep 18 2026 Date Fri 09/18/26 Sat 09/19/26 Sun 09/20/26 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 65 80 67 84 Temp 83 83 78 74 70 67 66 73 77 79 75 70 69 67 69 75 81 83 78 Dewpt 70 69 66 62 59 57 54 57 59 61 62 63 64 65 65 66 66 68 69 RH 65 63 67 66 68 70 65 57 54 54 64 78 84 93 87 74 60 61 74 Wind dir N N N N NE NE NE NE E E E SE SE SE S S S S S Wind spd 10 11 10 10 10 10 10 10 8 10 11 11 9 9 9 12 13 12 11 Clouds B1 B1 SC B1 B1 B2 B1 SC B1 B1 B2 B1 B2 B2 B1 B1 B1 B2 B2 PoP 12hr 0 5 5 10 40 QPF 12hr 0 0 0 0 0.03 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C L Tstms S C Heat index 87 87 83 86 Max heat 88 89 83 86 Date Mon 09/21/26 Tue 09/22/26 Wed 09/23/26 Thu 09/24/26 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 79 64 70 59 64 59 70 Temp 71 68 76 73 67 65 68 66 61 60 62 62 60 59 67 66 Dewpt 68 66 66 65 63 61 63 59 58 56 59 59 58 56 59 59 PWind dir NW NE NE NE NE NE NE NE Wind char GN GN GN BZ BZ BZ BZ BZ Avg clouds B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B1 PoP 12hr 60 50 60 60 60 50 50 40 Rain shwrs L S C L L L L L C C C C C C C Tstms C S S $$ MDZ013-182000- Baltimore/Washington Airport-Anne Arundel MD 39.19N 76.67W Elev. 154 ft 1101 AM EDT Fri Sep 18 2026 Date Fri 09/18/26 Sat 09/19/26 Sun 09/20/26 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 85 61 79 66 82 Temp 83 83 76 71 67 63 63 71 76 78 72 67 66 66 67 74 79 81 76 Dewpt 71 68 65 61 57 55 55 59 60 61 63 64 64 64 66 68 68 70 70 RH 67 61 69 71 70 75 75 66 58 56 73 90 93 93 97 82 69 69 82 Wind dir N N N N NE NE NE NE E E E SE SE SE S S S S S Wind spd 8 8 6 6 5 6 6 6 6 6 8 6 5 5 5 9 9 8 5 Clouds B2 B1 B1 SC B1 B1 B1 B1 B1 B1 B1 B2 B2 B2 B2 B2 B2 B2 B2 PoP 12hr 0 5 5 20 60 QPF 12hr 0 0 0 0 0.04 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S L L L Tstms S C Heat index 88 86 85 Max heat 88 88 85 Date Mon 09/21/26 Tue 09/22/26 Wed 09/23/26 Thu 09/24/26 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 66 77 61 69 57 65 56 70 Temp 68 66 75 70 63 61 67 64 58 57 63 62 57 57 67 65 Dewpt 68 66 67 65 62 61 63 60 56 56 60 59 57 57 60 60 PWind dir NW NE NE NE NE NE NE NE Wind char LT GN GN GN GN BZ GN GN Avg clouds B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 PoP 12hr 70 40 60 60 60 50 50 40 Rain shwrs L C C C L L C L L C C C C C C C Tstms C S $$ MDZ011-182000- Baltimore Inner Harbor-Baltimore City MD 39.28N 76.61W Elev. 20 ft 1101 AM EDT Fri Sep 18 2026 Date Fri 09/18/26 Sat 09/19/26 Sun 09/20/26 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 62 80 67 82 Temp 84 84 77 72 67 64 64 72 77 77 72 68 67 67 68 75 79 81 76 Dewpt 67 64 60 57 55 52 50 54 54 57 58 60 62 63 63 64 64 66 67 RH 57 51 56 59 65 65 60 53 45 50 61 76 84 87 84 69 60 60 74 Wind dir N N N N N NE NE NE E E E SE SE SE SE S S S S Wind spd 8 9 6 6 5 5 5 6 5 6 8 6 4 4 5 9 10 9 5 Clouds B2 B1 SC SC B1 B1 B1 B1 B1 B1 B1 B2 B2 B2 B2 B2 B2 B2 B2 PoP 12hr 0 5 5 20 60 QPF 12hr 0 0 0 0 0.08 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S S L L L Tstms S C Heat index 87 85 83 Max heat 87 87 83 Date Mon 09/21/26 Tue 09/22/26 Wed 09/23/26 Thu 09/24/26 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 77 62 70 58 66 58 71 Temp 70 67 75 71 63 63 68 65 59 58 64 63 58 59 68 66 Dewpt 68 64 63 61 60 58 58 54 54 52 54 54 54 54 55 56 PWind dir NW NE NE NE NE NE NE NE Wind char LT GN GN BZ GN BZ GN GN Avg clouds B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 PoP 12hr 70 40 60 60 60 50 50 40 Rain shwrs L C C C C L C L L C C C C C C C Tstms C $$ WVZ052-182000- Martinsburg Airport-Berkeley WV 39.41N 77.98W Elev. 558 ft 1101 AM EDT Fri Sep 18 2026 Date Fri 09/18/26 Sat 09/19/26 Sun 09/20/26 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 82 57 76 63 81 Temp 80 80 73 68 64 59 59 68 74 76 71 66 65 64 65 73 78 80 75 Dewpt 68 66 63 60 57 54 52 51 53 57 58 61 63 64 64 65 67 70 69 RH 67 62 71 76 78 83 78 54 48 52 63 84 93100 97 76 69 72 82 Wind dir N N N N N N N NE E SE SE SE SE SE S S SW S SW Wind spd 9 9 5 5 5 6 5 4 5 6 6 8 8 9 9 9 8 5 3 Clouds B2 B1 SC SC B1 B1 B2 B1 B1 B2 B2 B2 B2 B2 B2 B2 OV B2 B2 PoP 12hr 10 5 5 20 80 QPF 12hr 0 0 0 0 0.22 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S C C D D L Tstms C C S Heat index 83 82 83 Max heat 83 85 83 Date Mon 09/21/26 Tue 09/22/26 Wed 09/23/26 Thu 09/24/26 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 61 72 56 65 50 59 51 65 Temp 67 62 71 67 61 59 63 61 55 54 58 58 54 54 63 62 Dewpt 67 62 62 61 61 59 58 56 55 53 54 55 54 53 55 56 PWind dir N NE NE NE NE NE NE N Wind char LT GN LT GN GN GN LT LT Avg clouds B2 B2 B2 B2 B2 OV OV OV B2 B2 B2 B2 B2 B2 B2 B2 PoP 12hr 70 50 70 70 70 60 60 40 Rain shwrs L S C C L L L L L L L L L C C C Tstms S $$ VAZ506-182000- Washington Dulles Airport-Loudoun VA 38.96N 77.45W Elev. 321 ft 1101 AM EDT Fri Sep 18 2026 Date Fri 09/18/26 Sat 09/19/26 Sun 09/20/26 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 61 79 66 83 Temp 82 82 75 70 66 63 62 71 77 77 72 68 66 66 66 75 81 82 76 Dewpt 73 72 68 64 61 57 56 59 62 64 64 65 65 65 66 69 70 72 72 RH 74 72 79 81 84 81 81 66 60 64 76 90 97 97100 82 69 72 87 Wind dir N N N N N N N NE E E E SE SE SE S S S S S Wind spd 8 8 5 5 5 6 5 4 4 5 6 6 5 6 6 10 9 8 4 Clouds B2 SC SC B1 B1 B2 B2 B1 B1 B1 B1 B2 B2 B2 B2 B1 B2 B2 B2 PoP 12hr 10 5 10 10 50 QPF 12hr 0 0 0 0 0.10 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C L Tstms S C C Heat index 87 87 85 87 Max heat 87 88 85 87 Date Mon 09/21/26 Tue 09/22/26 Wed 09/23/26 Thu 09/24/26 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 77 62 69 56 63 56 68 Temp 69 66 75 71 64 62 66 64 58 56 62 61 57 57 65 63 Dewpt 69 66 69 67 64 62 66 63 58 56 61 61 57 56 62 62 PWind dir NW NE NE NE NE NE NE N Wind char LT GN LT GN GN GN GN GN Avg clouds B2 B2 B2 B2 B2 OV B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 PoP 12hr 60 50 60 60 60 50 50 40 Rain shwrs L S S C L L L L L L C C C C C C Tstms C $$ VAZ037-182000- Charlottesville Airport-Albemarle VA 38.14N 78.45W Elev. 640 ft 1101 AM EDT Fri Sep 18 2026 Date Fri 09/18/26 Sat 09/19/26 Sun 09/20/26 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 86 63 76 64 83 Temp 84 82 75 72 69 66 63 69 73 76 72 68 66 65 66 73 80 82 76 Dewpt 72 72 72 70 67 63 60 60 61 63 65 66 66 65 66 67 68 70 70 RH 67 72 90 93 93 90 90 73 66 64 79 93100100100 81 67 67 82 Wind dir NE NE NE NE NE NE NE NE NE E NE N N N S S SW S SW Wind spd 5 5 5 5 6 8 8 6 5 4 3 0 0 0 3 6 8 8 3 Wind gust 18 Clouds B1 B1 B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 B1 B2 B1 B1 B1 B1 B1 PoP 12hr 30 30 30 10 20 QPF 12hr 0.13 0.01 0.02 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C S S S C S S S Tstms S S S S S Heat index 90 87 83 86 Max heat 90 91 83 86 Date Mon 09/21/26 Tue 09/22/26 Wed 09/23/26 Thu 09/24/26 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 65 79 61 69 56 62 55 68 Temp 69 66 77 72 66 63 67 65 60 56 61 60 58 56 65 63 Dewpt 69 66 68 67 66 63 65 64 60 56 60 60 58 56 60 61 PWind dir SW NE NE NE NE NE N N Wind char LT LT LT GN GN GN GN LT Avg clouds B1 B2 B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 PoP 12hr 20 60 70 70 70 60 50 30 Rain shwrs S L L L L L L L C L C C C C Tstms S C C $$ MDZ003-182000- Hagerstown Airport-Washington MD 39.71N 77.73W Elev. 705 ft 1101 AM EDT Fri Sep 18 2026 Date Fri 09/18/26 Sat 09/19/26 Sun 09/20/26 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 56 77 64 80 Temp 80 81 75 66 62 58 58 68 74 75 70 66 65 64 65 71 76 78 74 Dewpt 69 66 63 59 56 52 51 52 56 58 60 61 63 64 65 67 69 71 70 RH 69 60 66 78 81 80 77 57 53 55 71 84 93100100 87 79 79 87 Wind dir N N NE NE N N NE NE SE SE SE SE SE SE S S S SW E Wind spd 8 8 5 6 6 6 5 3 3 5 5 9 9 10 10 10 8 5 3 Clouds B2 B1 SC SC SC SC B1 B1 B1 B2 B2 B2 B2 OV B2 OV OV OV B2 PoP 12hr 5 5 5 40 90 QPF 12hr 0 0 0 0 0.18 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C C L L D D L Tstms C C S Heat index 83 83 Max heat 83 83 Date Mon 09/21/26 Tue 09/22/26 Wed 09/23/26 Thu 09/24/26 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 72 58 64 53 61 53 65 Temp 66 63 70 67 60 59 62 60 55 53 58 58 54 54 63 61 Dewpt 66 63 64 62 60 58 60 57 54 52 56 57 54 53 58 58 PWind dir NE NE NE NE NE NE NE NE Wind char LT GN GN GN GN GN GN LT Avg clouds B2 B2 B2 B2 B2 OV OV OV B2 B2 B2 B2 B2 B2 B2 B2 PoP 12hr 70 50 60 70 60 60 60 40 Rain shwrs L C C C L L C L L L L C L C C C Tstms S $$ MDZ017-182000- Patuxent River NAS MD 38.29N 76.41W Elev. 39 ft 1101 AM EDT Fri Sep 18 2026 Date Fri 09/18/26 Sat 09/19/26 Sun 09/20/26 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 84 68 79 70 82 Temp 82 83 78 75 72 70 70 75 77 77 72 70 70 70 72 77 80 81 77 Dewpt 73 71 69 67 65 63 62 64 64 64 65 64 65 65 66 67 68 68 69 RH 74 67 74 76 79 78 76 69 64 64 79 81 84 84 81 71 67 65 76 Wind dir N N N NE NE NE NE NE NE E E E SE SE SE S S S S Wind spd 10 10 6 6 6 9 9 9 6 8 9 8 6 6 6 9 11 11 9 Clouds SC SC SC B1 B1 B1 B1 B1 B2 B1 B1 B1 B1 B1 SC SC SC SC B1 PoP 12hr 10 5 10 5 10 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C Tstms C Heat index 87 88 83 84 Max heat 87 88 83 84 Date Mon 09/21/26 Tue 09/22/26 Wed 09/23/26 Thu 09/24/26 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 70 80 67 74 64 69 63 72 Temp 72 72 78 74 69 68 72 70 66 65 67 66 65 65 70 69 Dewpt 70 70 69 68 66 66 66 64 62 62 63 62 61 62 62 62 PWind dir SW NE NE NE NE NE NE NE Wind char LT GN GN BZ BZ BZ BZ BZ Avg clouds B1 B1 B1 B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B1 B1 PoP 12hr 30 50 60 60 50 50 40 40 Rain shwrs C S C C C L L L C C C C C C C C Tstms C S S S S S $$ WVZ502-182000- Petersburg WV 38.99N 79.15W Elev. 963 ft 1101 AM EDT Fri Sep 18 2026 Date Fri 09/18/26 Sat 09/19/26 Sun 09/20/26 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 58 78 63 84 Temp 80 82 75 68 65 60 58 65 75 78 71 66 64 63 64 74 81 82 74 Dewpt 72 71 69 67 64 60 58 61 64 65 63 63 62 63 63 68 71 72 70 RH 77 69 82 97 97100100 87 69 64 76 90 93100 97 82 72 72 87 Wind dir N N NE N N N NE E SE SE SE S S S S SW SW W W Wind spd 3 4 3 2 2 2 2 1 2 4 3 3 3 3 4 4 3 2 2 Clouds B2 B1 B2 B2 B2 B2 B2 B2 B1 B2 B2 B1 B1 B1 B1 B2 B2 B2 B2 PoP 12hr 30 40 10 5 70 QPF 12hr 0.04 0.02 0 0 0.21 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C S C C C L L C Tstms S S S C C S Obvis PF Heat index 84 86 85 87 Max heat 84 86 85 88 Date Mon 09/21/26 Tue 09/22/26 Wed 09/23/26 Thu 09/24/26 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 75 59 69 53 62 52 68 Temp 67 63 73 68 61 60 66 63 57 54 60 58 54 53 65 63 Dewpt 67 63 68 65 61 59 66 61 57 54 59 58 54 53 61 59 PWind dir NW NE NE E E NE NE N Wind char LT LT LT LT LT LT LT LT Avg clouds B2 B2 B2 B2 OV OV B2 OV OV B2 B2 B2 B2 B2 B2 B2 PoP 12hr 50 80 80 80 80 60 60 40 Rain shwrs C C L D D L L D D L L C L C C C Tstms S S S $$ MDZ014-182000- Annapolis MD 38.99N 76.49W Elev. 7 ft 1101 AM EDT Fri Sep 18 2026 Date Fri 09/18/26 Sat 09/19/26 Sun 09/20/26 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 84 64 77 67 80 Temp 84 83 78 73 70 66 66 73 77 77 73 68 67 67 69 76 80 80 77 Dewpt 69 67 66 64 60 57 56 59 60 60 62 64 64 64 65 66 66 67 69 RH 61 59 67 73 71 73 70 62 56 56 68 87 90 90 87 71 62 65 76 Wind dir N N N N NE NE NE NE NE E E SE SE SE SE S S S S Wind spd 10 9 8 9 9 9 9 10 8 9 10 9 8 8 8 12 13 12 8 Clouds B1 B1 SC SC SC B2 B1 B1 B1 B2 B1 B1 B2 B2 B1 B1 B2 B2 B2 PoP 12hr 0 5 5 10 40 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C L Tstms S C Heat index 88 86 82 82 Max heat 88 88 82 82 Date Mon 09/21/26 Tue 09/22/26 Wed 09/23/26 Thu 09/24/26 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 68 76 64 73 60 68 60 72 Temp 70 68 76 72 66 65 71 67 62 61 67 65 61 61 71 68 Dewpt 69 66 66 66 63 62 64 60 58 58 61 60 58 59 61 60 PWind dir SW NE NE NE NE NE NE NE Wind char LT GN GN BZ BZ BZ GN GN Avg clouds B2 B2 B2 B2 B2 B2 B2 OV OV B2 B2 B2 B2 B2 B2 B2 PoP 12hr 70 40 60 60 60 50 50 40 Rain shwrs L S C C L L L L L C C C C C C C Tstms C S S $$