FOUS51 KLWX 211103 PFMLWX Point Forecast Matrices National Weather Service Baltimore MD/Washington DC 703 AM EDT Tue Apr 21 2026 VAZ054-212000- Reagan National Airport-Arlington VA 38.86N 77.03W Elev. 66 ft 703 AM EDT Tue Apr 21 2026 Date Tue 04/21/26 Wed 04/22/26 Thu 04/23/26 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 62 51 71 55 78 Temp 38 50 57 61 58 53 53 53 54 62 66 70 66 62 57 56 57 68 75 77 72 Dewpt 26 24 25 26 30 34 35 35 38 45 50 52 53 52 52 52 51 50 49 47 49 RH 62 36 29 26 34 48 50 50 54 54 56 53 63 70 83 86 80 52 40 35 44 Wind dir NE S S S S S S S SW SW W W NW W W NW NW NW NW NW N Wind spd 3 3 6 9 8 9 12 12 11 9 9 9 6 5 5 5 5 5 5 6 5 Clouds CL FW FW SC SC SC B2 B2 B2 B2 B2 B1 SC FW FW FW FW FW FW FW SC PoP 12hr 0 20 60 10 5 QPF 12hr 0 0 0.13 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs L L C C Date Fri 04/24/26 Sat 04/25/26 Sun 04/26/26 Mon 04/27/26 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 58 79 57 69 52 64 49 69 Temp 63 59 76 71 60 58 65 61 54 52 61 59 53 51 66 63 Dewpt 51 50 50 51 51 52 54 49 49 47 46 44 44 45 46 46 PWind dir NW NE E E NE NE E E Wind char LT LT LT GN GN GN LT GN Avg clouds SC SC SC B1 B1 B1 B2 B2 B2 B2 B2 B1 SC SC SC SC PoP 12hr 10 30 40 60 70 40 20 20 Rain shwrs C C C C L L L C C S S S Tstms S S $$ MDZ013-212000- Baltimore/Washington Airport-Anne Arundel MD 39.19N 76.67W Elev. 154 ft 703 AM EDT Tue Apr 21 2026 Date Tue 04/21/26 Wed 04/22/26 Thu 04/23/26 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 60 48 70 52 78 Temp 37 50 56 59 55 50 49 50 54 61 66 69 64 57 54 52 55 66 74 77 71 Dewpt 25 23 23 26 31 35 38 37 38 46 51 53 54 53 52 51 51 52 51 50 52 RH 61 34 27 28 40 56 66 61 54 58 58 57 70 86 93 96 86 61 44 39 51 Wind dir NE SW SW S SE S S S SW SW W NW NW NW NW NW NW NW NW NW W Wind spd 3 3 5 9 6 6 8 6 5 5 5 5 2 2 2 2 2 3 4 4 2 Clouds FW FW FW FW SC SC B2 OV B2 B2 B2 B2 SC FW FW FW FW FW FW FW FW PoP 12hr 0 30 60 10 0 QPF 12hr 0 0 0.16 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs L L L L Freeze W Date Fri 04/24/26 Sat 04/25/26 Sun 04/26/26 Mon 04/27/26 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 55 75 52 63 49 61 47 67 Temp 58 57 73 67 55 53 60 57 50 50 59 57 50 50 65 61 Dewpt51 48 50 51 49 50 51 49 48 47 46 46 44 45 47 47 PWind dir N E E E NE NE E E Wind char LT LT LT GN LT GN LT LT Avg clouds SC SC SC B1 B1 B1 B2 B2 B2 OV B2 B1 SC SC SC SC PoP 12hr 5 30 40 70 70 40 20 20 Rain shwrs C C C C L L L C C S S S Tstms S S $$ MDZ011-212000- Baltimore Inner Harbor-Baltimore City MD 39.28N 76.61W Elev. 20 ft 703 AM EDT Tue Apr 21 2026 Date Tue 04/21/26 Wed 04/22/26 Thu 04/23/26 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 59 50 70 54 77 Temp 38 50 55 58 55 51 52 52 54 60 66 70 66 59 56 54 56 66 74 76 72 Dewpt 24 23 23 26 30 34 36 36 38 43 47 49 50 50 50 49 48 48 46 45 47 RH 57 34 29 29 38 52 54 54 54 53 50 47 56 72 80 83 74 52 37 33 41 Wind dir N S S S SE S S S SW SW W W NW NW NW NW NW NW NW NW NW Wind spd 3 3 5 9 6 6 5 5 4 4 5 5 2 2 2 2 2 2 4 4 2 Clouds CL CL FW FW B1 SC B2 OV B2 B2 B2 B2 FW FW FW FW FW FW FW FW SC PoP 12hr 0 30 60 10 0 QPF 12hr 0 0 0.15 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs L L L L Freeze W Date Fri 04/24/26 Sat 04/25/26 Sun 04/26/26 Mon 04/27/26 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 57 75 55 65 51 63 49 68 Temp 60 59 73 69 58 55 62 60 54 51 60 60 53 51 66 64 Dewpt 49 47 47 48 49 49 49 47 46 44 44 43 43 43 43 44 PWind dir N E E E NE NE E E Wind char LT LT LT GN LT GN LT LT Avg clouds SC SC SC B1 B1 B1 B2 B2 B2 OV B2 B1 SC SC SC SC PoP 12hr 5 30 40 70 70 40 20 20 Rain shwrs C C C C L L L C C S S S Tstms S S $$ WVZ052-212000- Martinsburg Airport-Berkeley WV 39.41N 77.98W Elev. 558 ft 703 AM EDT Tue Apr 21 2026 Date Tue 04/21/26 Wed 04/22/26 Thu 04/23/26 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 63 46 71 49 79 Temp 35 49 58 62 56 51 48 48 52 62 68 71 66 59 54 50 53 67 76 79 72 Dewpt 21 23 26 29 31 33 32 35 41 47 50 50 49 49 48 47 48 49 47 45 48 RH 56 36 29 28 38 50 54 60 66 58 52 47 54 69 80 89 83 52 36 30 42 Wind dir S S S S S S S S SW SW W NW W W W W NW NW NW NW NW Wind spd 1 5 8 9 6 5 6 5 4 5 9 10 5 3 2 2 2 3 3 4 2 Clouds CL CL FW FW SC B1 B1 OV B2 B2 B1 B1 SC FW FW FW FW FW FW FW SC PoP 12hr 0 40 60 10 5 QPF 12hr 0 0.03 0.22 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S L L C C Freeze WDate Fri 04/24/26 Sat 04/25/26 Sun 04/26/26 Mon 04/27/26 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 52 80 54 69 48 65 45 69 Temp 56 56 77 71 59 56 66 63 52 50 61 60 50 50 66 64 Dewpt 48 49 50 52 51 50 52 49 46 44 44 44 42 42 46 45 PWind dir NW N E E NE NE SE SE Wind char LT LT LT LT LT LT LT GN Avg clouds SC SC SC B1 B1 B1 B2 B2 B2 B2 B2 B1 SC SC SC B1 PoP 12hr 10 30 40 80 70 40 20 30 Rain shwrs C C C L D L C C C S S S C Tstms S S $$ VAZ506-212000- Washington Dulles Airport-Loudoun VA 38.96N 77.45W Elev. 321 ft 703 AM EDT Tue Apr 21 2026 Date Tue 04/21/26 Wed 04/22/26 Thu 04/23/26 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 62 49 71 52 79 Temp 35 49 57 61 58 52 51 51 54 61 68 71 67 60 55 53 55 68 76 78 72 Dewpt 25 22 25 28 29 34 33 35 40 49 54 55 55 54 53 52 52 54 52 51 53 RH 66 34 29 28 33 50 50 54 59 65 61 57 65 81 93 96 90 61 43 39 51 Wind dir N S S S S S S S SW SW W W NW W NW NW NW NW NW NW NW Wind spd 2 4 5 8 8 9 10 9 6 5 6 6 4 3 3 3 3 4 5 4 3 Clouds FW CL FW FW SC SC B1 B1 OV B2 B1 B1 SC SC FW FW FW FW FW FW FW PoP 12hr 0 40 60 10 5 QPF 12hr 0 0.01 0.14 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs L L C C Tstms S Freeze W Date Fri 04/24/26 Sat 04/25/26 Sun 04/26/26 Mon 04/27/26 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 54 80 55 68 50 63 46 68 Temp 58 57 78 72 59 56 65 61 52 51 60 58 50 49 66 63 Dewpt 52 51 52 53 53 53 56 52 50 49 48 46 45 46 48 47 PWind dir NW N SE E NE NE E SE Wind char LT LT LT GN LT GN LT LT Avg clouds SC SC SC B1 B1 B1 B2 B2 B2 B2 B2 B1 SC SC SC SC PoP 12hr 10 30 40 70 80 40 30 20 Rain shwrs C C C C L D L C C C S S S Tstms S S $$ VAZ037-212000- Charlottesville Airport-Albemarle VA 38.14N 78.45W Elev. 640 ft 703 AM EDT Tue Apr 21 2026 Date Tue 04/21/26 Wed 04/22/26 Thu 04/23/26 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 66 47 76 51 82 Temp 37 51 61 65 60 53 50 49 54 67 73 75 69 62 57 52 56 71 80 81 75 Dewpt 20 22 25 28 29 31 31 34 40 44 47 48 47 47 48 48 49 50 49 48 49 RH 50 32 25 25 31 43 48 56 59 43 40 38 45 58 72 86 77 47 34 32 40 Wind dir N S S S S S S S SW SW W W NW W W W NW NW NW W S Wind spd 1 4 8 11 6 4 5 55 8 10 9 5 2 2 2 2 2 3 3 2 Clouds CL CL CL FW FW SC B1 SC B1 B2 B1 B1 FW FW FW FW FW FW FW FW SC PoP 12hr 0 20 50 5 10 QPF 12hr 0 0 0.02 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C C Tstms S Freeze W Date Fri 04/24/26 Sat 04/25/26 Sun 04/26/26 Mon 04/27/26 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 55 83 56 77 53 67 47 72 Temp 60 59 81 76 61 59 73 68 57 53 64 63 53 51 69 66 Dewpt 49 50 48 49 49 52 54 52 49 48 46 44 43 45 46 44 PWind dir W W NE N NE NE NE SE Wind char LT LT LT LT LT LT LT LT Avg clouds FW FW FW SC SC SC B1 B2 B2 B2 B1 B1 SC SC SC B1 PoP 12hr 5 20 20 70 60 40 20 30 Rain shwrs S S S C L L C C C S S C Tstms S S $$ MDZ003-212000- Hagerstown Airport-Washington MD 39.71N 77.73W Elev. 705 ft 703 AM EDT Tue Apr 21 2026 Date Tue 04/21/26 Wed 04/22/26 Thu 04/23/26 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 60 46 69 49 78 Temp 36 47 55 59 55 51 48 48 51 59 66 69 64 57 53 49 53 66 74 77 70 Dewpt 23 23 27 30 32 33 33 35 41 48 53 54 52 52 51 48 50 52 50 49 51 RH 59 38 34 33 41 50 56 60 68 67 63 59 65 83 93 96 89 61 43 37 51 Wind dir S S S S S S S S S SW W W W W W NW NW NW NW NW NW Wind spd 2 5 6 9 6 6 6 5 4 5 8 8 4 2 2 2 2 4 4 4 3 Clouds CL CL SC SC SC SC B1 OV B2 B2 B1 B1 SC FW FW FW FW FW FW FW FW PoP 12hr 0 50 60 5 5 QPF 12hr 0 0.01 0.13 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C L L C C Freeze W Date Fri 04/24/26 Sat 04/25/26 Sun 04/26/26 Mon 04/27/26 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 53 77 53 63 48 62 45 66 Temp 55 56 75 69 57 55 61 58 51 48 59 58 49 49 64 62 Dewpt 49 49 52 54 52 51 53 50 47 46 46 46 44 44 48 48 PWind dir N N SE E NE E SE SE Wind char LT LT LT LT LT LT LT LT Avg clouds SC SC SC B1 B1 B1 B2 B2 B2 B2 B2 B2 SC SC SC B1 PoP 12hr 5 30 40 80 70 40 20 20 Rain shwrs C C C L D L C C C S S S S Tstms S S $$ MDZ017-212000- Patuxent River NAS MD 38.29N 76.41W Elev. 39 ft 703 AM EDT Tue Apr 21 2026 Date Tue 04/21/26 Wed 04/22/26 Thu 04/23/26 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 0306 09 12 15 18 21 00 Max/Min 60 52 74 56 77 Temp 42 51 55 58 55 54 54 54 57 68 70 72 66 61 58 57 58 68 74 75 68 Dewpt 29 26 28 32 35 40 41 40 41 46 52 54 55 54 53 53 53 54 54 54 53 RH 60 37 35 37 47 59 61 59 55 45 53 53 68 78 83 86 83 61 50 48 59 Wind dir NE NE SE SE SE S S S SW SW W W W NW NW NW NW N N N SE Wind spd 6 5 8 10 10 11 12 12 11 10 9 5 2 2 3 4 4 5 5 4 2 Clouds CL CL FW FW FW SC B2 B2 B2 B2 B2 B2 SC SC FW FW FW FW FW FW FW PoP 12hr 0 10 60 10 0 QPF 12hr 0 0 0.07 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs L L L L Freeze W Date Fri 04/24/26 Sat 04/25/26 Sun 04/26/26 Mon 04/27/26 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 58 77 56 71 54 65 50 69 Temp 61 61 74 67 59 59 68 61 57 55 63 58 53 54 66 62 Dewpt 54 53 54 53 53 54 55 52 52 50 49 47 47 47 48 48 PWind dir SW E SE E NE NE NE E Wind char LT LT LT GN GN GN GN GN Avg clouds FW SC SC SC B1 B1 B1 B2 B2 B2 B2 B1 SC SC SC SC PoP 12hr 10 20 30 50 70 50 30 20 Rain shwrs S C C C C L L C C C S S Tstms S $$ WVZ502-212000- Petersburg WV 38.99N 79.15W Elev. 963 ft 703 AM EDT Tue Apr 21 2026 Date Tue 04/21/26 Wed 04/22/26 Thu 04/23/26 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 71 49 71 50 80 Temp 33 52 65 70 63 55 53 54 56 64 69 71 66 59 54 50 53 70 78 80 73 Dewpt 20 23 26 31 36 38 41 42 45 50 52 52 51 51 50 49 51 52 49 49 50 RH 58 32 23 23 36 53 64 64 66 60 55 51 58 75 86 96 93 53 36 34 44 Wind dir S S S SW SW S S SW W W W W W W W W W NW NW NW W Wind spd 1 2 4 8 4 4 4 5 5 8 10 9 4 2 2 1 1 2 4 4 2 Clouds CL CL FW SC SC B1 B1 B2 B2 B2 B1 B1 SC SC FW FW FW FW FW FW FW PoP 12hr 0 40 60 10 10 QPF 12hr 0 0 0.02 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C L L C C Tstms S S Date Fri 04/24/26 Sat 04/25/26 Sun 04/26/26 Mon 04/27/26 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 51 83 55 76 48 68 46 72 Temp 56 56 81 74 59 57 72 68 53 50 65 63 50 49 69 66 Dewpt 50 49 49 52 51 52 56 54 50 47 48 46 46 45 47 47 PWind dir W W SW W NE NE SE SE Wind char LT LT LT LT LT LT LT LT Avg clouds FW FW SC SC SC B1 B2 B2 B2 B1 B1 B1 SC SC SC B1 PoP 12hr 5 20 30 80 60 40 20 30 Rain shwrs S C C L D L C C C S S S C TstmsS S $$ MDZ014-212000- Annapolis MD 38.99N 76.49W Elev. 7 ft 703 AM EDT Tue Apr 21 2026 Date Tue 04/21/26 Wed 04/22/26 Thu 04/23/26 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 57 50 68 54 73 Temp 40 48 52 55 54 52 52 52 55 59 64 67 63 59 56 54 56 63 69 72 67 Dewpt 27 24 28 31 35 38 41 39 40 45 50 52 53 53 52 52 51 51 50 50 51 RH 59 39 39 40 48 59 66 61 57 60 60 59 70 80 86 93 83 65 51 46 56 Wind dir NE E SE S S S S S SW SW SW W NW W W NW NW N NW W SW Wind spd 4 4 8 10 10 10 10 10 8 6 6 5 2 2 2 2 3 3 3 4 2 Clouds CL CL FW FW SC SC B2 B2 B2 B2 B2 B2 SC FW FW FW FW FW FW FW FW PoP 12hr 0 20 60 10 0 QPF 12hr 0 0 0.13 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs L L L L Freeze W Date Fri 04/24/26 Sat 04/25/26 Sun 04/26/26 Mon 04/27/26 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 56 73 55 64 51 61 49 66 Temp 58 58 68 66 57 56 60 59 53 52 58 57 52 51 63 61 Dewpt 52 49 50 51 51 51 51 50 49 47 46 46 46 46 46 48 PWind dir E E E E NE NE E E Wind char LT LT LT GN GN GN LT LT Avg clouds SC SC SC B1 B1 B1 B2 B2 B2 B2 B2 B1 SC SC SC SC PoP 12hr 5 30 40 60 70 40 20 20 Rain shwrs C C C C L L L C C S S S Tstms S $$