291
FOUS51 KLWX 041829
PFMLWX
POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
229 PM EDT FRI SEP 4 2026
VAZ054-042000-
REAGAN NATIONAL AIRPORT-ARLINGTON VA
38.86N 77.03W ELEV. 66 FT
229 PM EDT FRI SEP 4 2026
DATE FRI 09/04/26 SAT 09/05/26 SUN 09/06/26
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 92 74 85 68 82
TEMP 88 82 79 77 76 75 80 83 80 77 74 71 69 69 76 80 78 74
DEWPT 75 71 72 72 71 71 70 69 68 67 65 64 63 62 63 62 62 61
RH 66 69 79 85 85 87 72 63 67 71 74 79 81 78 64 54 58 64
WIND DIR NW W W NW NW N N N NE NE NE NE N NE NE NE NE E
WIND SPD 11 6 5 6 8 8 8 8 8 8 5 8 9 9 10 10 11 9
CLOUDS B2 B2 SC B1 B1 B2 B2 B2 B1 B2 B2 B2 B1 FW FW SC SC SC
POP 12HR 60 50 40 30 10
QPF 12HR 0.30 0.17 0.02 0.10 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS L C S C C S S C C S
TSTMS C S
HEAT INDEX 98 86 83 87 83 81
MAX HEAT 100 100 85 87 84 81 81
SVR TSTORM A A
DATE MON 09/07/26 TUE 09/08/26 WED 09/09/26 THU 09/10/26
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 83 65 86 68 89 74 91
TEMP 67 67 81 76 67 67 83 79 70 69 85 83 77 75 88 84
DEWPT 62 61 58 58 59 60 60 60 61 61 64 63 63 64 66 63
PWIND DIR E E S SW S SW SW W
WIND CHAR LT LT LT LT GN GN GN BZ
AVG CLOUDS FW FW FW FW FW FW FW SC SC SC SC SC SC FW SC SC
POP 12HR 5 0 0 0 0 0 10 20
RAIN SHWRS S
TSTMS S
MDZ013-042000-
BALTIMORE/WASHINGTON AIRPORT-ANNE ARUNDEL MD
39.19N 76.67W ELEV. 154 FT
229 PM EDT FRI SEP 4 2026
DATE FRI 09/04/26 SAT 09/05/26 SUN 09/06/26
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 91 71 83 64 81
TEMP 88 82 77 74 73 71 76 79 79 75 71 68 66 66 73 76 76 72
DEWPT 74 73 72 71 70 70 70 69 68 68 65 64 63 63 66 65 64 64
RH 63 74 85 90 90 97 82 72 69 79 81 87 90 90 79 69 66 76
WIND DIR NW W NW W NW N NE N N NE NE NE N NE NE NE NE E
WIND SPD 9 3 2 2 3 3 5 4 4 3 3 3 4 5 6 8 6 4
CLOUDS B1 B2 B1 B1 B1 B1 B2 B1 SC SC B1 B1 FW FW FW SC SC SC
POP 12HR 60 50 30 10 10
QPF 12HR 0.08 0.26 0.04 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS C C C C C C S S
TSTMS C S S
HEAT INDEX 97 87
MAX HEAT 98 99 84 83 84
DATE MON 09/07/26 TUE 09/08/26 WED 09/09/26 THU 09/10/26
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 81 62 84 65 88 72 91
TEMP 64 64 76 73 65 65 80 77 68 67 84 81 75 74 88 83
DEWPT 64 63 61 61 60 61 63 64 63 63 67 68 65 66 69 66
PWIND DIR E E SW SW S SW SW W
WIND CHAR LT LT LT LT LT LT GN GN
AVG CLOUDS SC FW FW FW FW FW FW SC SC SC SC SC SC SC SC SC
POP 12HR 5 0 0 0 0 5 10 20
RAIN SHWRS S
TSTMS S
MDZ011-042000-
BALTIMORE INNER HARBOR-BALTIMORE CITY MD
39.28N 76.61W ELEV. 20 FT
229 PM EDT FRI SEP 4 2026
DATE FRI 09/04/26 SAT 09/05/26 SUN 09/06/26
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 91 72 84 66 82
TEMP 89 83 79 76 74 73 77 80 80 76 72 69 66 67 74 77 77 72
DEWPT 73 71 70 70 70 68 65 65 64 63 61 61 61 59 61 60 60 59
RH 59 67 74 82 87 84 67 60 58 64 68 76 84 75 64 56 56 64
WIND DIR NW W NW W NW N NE N N NE NE N N NE NE NE NE E
WIND SPD 9 2 1 1 2 3 4 4 5 3 2 3 4 4 5 6 6 4
CLOUDS B1 B2 B1 SC B2 B2 B2 SC B1 SC B1 SC SC FW SC SC SC SC
POP 12HR 60 50 20 5 10
QPF 12HR 0.09 0.18 0.03 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS C C C S C S
TSTMS C S S S
HEAT INDEX 97 88 82 82
MAX HEAT 98 98 86 83 83
DATE MON 09/07/26 TUE 09/08/26 WED 09/09/26 THU 09/10/26
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 82 65 85 68 89 74 91
TEMP 66 66 76 73 66 66 81 77 69 70 84 83 76 75 88 84
DEWPT 61 59 56 55 58 57 58 59 61 60 63 63 64 63 65 62
PWIND DIR E E SW SW S S SW W
WIND CHAR LT LT LT LT LT LT LT GN
AVG CLOUDS SC FW FW FW FW FW FW SC SC SC SC SC SC SC SC SC
POP 12HR 5 0 0 0 0 5 10 20
RAIN SHWRS S
TSTMS S
WVZ052-042000-
MARTINSBURG AIRPORT-BERKELEY WV
39.41N 77.98W ELEV. 558 FT
229 PM EDT FRI SEP 4 2026
DATE FRI 09/04/26 SAT 09/05/26 SUN 09/06/26
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 90 69 82 61 80
TEMP 87 79 74 73 71 71 77 80 80 73 68 66 63 63 73 78 78 70
DEWPT 72 70 70 70 70 70 69 69 68 66 65 62 60 60 61 59 58 59
RH 61 74 87 90 97 97 76 69 67 79 90 87 90 90 66 52 50 68
WIND DIR NW W N N W N N N NE NE N N N N NE NE NE NE
WIND SPD 9 3 0 0 3 3 5 6 6 3 1 3 5 5 6 8 8 4
CLOUDS B2 B1 B1 B2 B2 B1 B2 B1 B2 B1 B2 B1 B1 SC SC SC SC FW
POP 12HR 60 60 60 20 5
QPF 12HR 0.07 0.17 0.14 0.01 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS C C C L S C S S L S
TSTMS C S S S S S
HEAT INDEX 94 83 83
MAX HEAT 95 94 83 84
SVR TSTORM A A
DATE MON 09/07/26 TUE 09/08/26 WED 09/09/26 THU 09/10/26
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 80 58 84 62 88 69 87
TEMP 61 60 78 71 62 61 82 75 66 64 86 82 73 72 86 78
DEWPT 59 58 57 56 56 58 60 60 59 60 64 64 64 65 65 62
PWIND DIR NE E SE S S SW SW W
WIND CHAR LT LT LT LT LT LT LT GN
AVG CLOUDS FW SC SC FW FW FW SC SC SC SC SC SC SC SC SC SC
POP 12HR 0 0 0 0 0 0 10 20
RAIN SHWRS S
TSTMS S
VAZ506-042000-
WASHINGTON DULLES AIRPORT-LOUDOUN VA
38.96N 77.45W ELEV. 321 FT
229 PM EDT FRI SEP 4 2026
DATE FRI 09/04/26 SAT 09/05/26 SUN 09/06/26
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 92 71 84 64 82
TEMP 88 81 77 74 73 71 79 83 80 75 70 68 65 66 75 80 78 72
DEWPT 74 73 72 72 71 71 73 73 72 70 68 65 63 63 66 66 66 66
RH 63 77 85 93 93100 82 72 77 84 93 90 93 90 74 62 67 81
WIND DIR NW W W NW NW N N N N NE NE N N N NE NE NE E
WIND SPD 10 3 2 2 3 4 5 5 5 3 2 3 4 5 5 6 6 4
CLOUDS B2 B1 SC B1 B1 B1 B1 B1 B1 B2 B2 B2 B1 SC SC SC SC FW
POP 12HR 60 50 50 40 10
QPF 12HR 0.12 0.23 0.05 0.05 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS L C S C C C S C C S
TSTMS C S S S
HEAT INDEX 97 86 89 84 82
MAX HEAT 102 100 89 86 82 82
SVR TSTORM A A
DATE MON 09/07/26 TUE 09/08/26 WED 09/09/26 THU 09/10/26
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 82 60 85 63 89 70 90
TEMP 63 63 81 73 63 63 83 77 67 66 86 82 74 72 87 81
DEWPT 63 63 64 63 61 62 65 65 62 63 68 67 65 66 70 67
PWIND DIR E E S SW S S SW W
WIND CHAR LT LT LT LT LT LT GN GN
AVG CLOUDS SC SC FW FW FW FW FW SC SC SC SC SC SC SC SC SC
POP 12HR 5 0 0 0 0 0 10 20
RAIN SHWRS S
TSTMS S
VAZ037-042000-
CHARLOTTESVILLE AIRPORT-ALBEMARLE VA
38.14N 78.45W ELEV. 640 FT
229 PM EDT FRI SEP 4 2026
DATE FRI 09/04/26 SAT 09/05/26 SUN 09/06/26
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 93 71 87 66 79
TEMP 89 80 76 74 73 73 81 85 83 75 71 69 68 66 73 77 77 71
DEWPT 73 72 71 71 70 71 71 72 72 71 70 69 67 65 64 63 63 63
RH 59 77 85 90 90 93 72 65 70 87 97100 97 97 73 62 62 76
WIND DIR NW NW N N N SW NE N N NE N NE N NE NE NE NE NE
WIND SPD 8 3 0 0 0 3 3 5 6 5 3 3 5 6 8 8 8 5
CLOUDS B2 B2 FW FW SC B1 B2 B1 B1 B1 OV B2 OV B2 B1 B1 SC SC
POP 12HR 60 60 50 70 20
QPF 12HR 0.01 0.01 0.06 0.15 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS L L S S C C C C C S S S S S
TSTMS C S S C C S
HEAT INDEX 97 84 85 91 88
MAX HEAT 103 101 91 92
SVR TSTORM A A
DATE MON 09/07/26 TUE 09/08/26 WED 09/09/26 THU 09/10/26
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 81 60 84 62 88 68 91
TEMP 65 61 79 72 62 62 83 75 66 64 87 80 72 70 90 81
DEWPT 63 61 61 60 60 60 61 62 60 60 63 64 63 64 65 65
PWIND DIR NE E N S SW SW SW W
WIND CHAR LT LT LT LT LT LT LT GN
AVG CLOUDS SC SC SC SC FW FW FW SC SC SC FW SC SC FW FW SC
POP 12HR 5 5 0 0 0 0 5 10
MDZ003-042000-
HAGERSTOWN AIRPORT-WASHINGTON MD
39.71N 77.73W ELEV. 705 FT
229 PM EDT FRI SEP 4 2026
DATE FRI 09/04/26 SAT 09/05/26 SUN 09/06/26
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 68 82 59 80
TEMP 86 78 74 72 70 70 75 79 79 72 67 64 61 62 73 78 77 69
DEWPT 72 71 70 70 69 69 69 69 68 66 63 61 59 60 62 62 61 61
RH 63 79 87 93 97 97 82 72 69 81 87 90 93 93 68 58 58 76
WIND DIR NW W NW N N N N N N NE NE N N N NE NE NE NE
WIND SPD 9 3 2 2 3 3 4 4 5 3 4 5 6 6 5 6 6 4
CLOUDS B2 B1 B1 B1 B2 B2 B1 B1 B1 B2 B1 B2 SC FW FW SC SC FW
POP 12HR 60 50 40 10 0
QPF 12HR 0.36 0.12 0.08 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS C C C C S C S C C
TSTMS C S S S S
HEAT INDEX 92
MAX HEAT 91 92 84
SVR TSTORM A A
DATE MON 09/07/26 TUE 09/08/26 WED 09/09/26 THU 09/10/26
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 80 58 84 62 87 69 87
TEMP 60 60 78 71 62 61 80 75 66 64 85 81 73 71 84 78
DEWPT 59 59 59 58 57 58 62 62 60 61 67 65 65 66 67 64
PWIND DIR NE NE SE S S SW SW W
WIND CHAR LT LT LT LT LT LT LT GN
AVG CLOUDS FW SC FW FW FW FW SC SC SC SC SC SC SC SC SC SC
POP 12HR 0 0 0 0 0 0 20 20
RAIN SHWRS S S S
TSTMS S S
MDZ017-042000-
PATUXENT RIVER NAS MD
38.29N 76.41W ELEV. 39 FT
229 PM EDT FRI SEP 4 2026
DATE FRI 09/04/26 SAT 09/05/26 SUN 09/06/26
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 93 73 83 69 80
TEMP 89 81 77 76 75 75 79 81 80 76 74 72 70 71 76 78 77 72
DEWPT 76 75 74 73 72 73 72 71 69 68 68 67 66 66 66 65 65 65
RH 66 82 90 90 90 94 79 72 69 76 82 84 87 84 71 64 67 79
WIND DIR N W W W NW N N N NE NE NE NE NE NE NE NE NE E
WIND SPD 4 3 4 4 5 6 6 8 6 4 4 4 5 6 9 9 9 6
CLOUDS B1 B2 B1 B1 B1 B2 B2 B1 SC B1 B2 B2 B1 SC SC SC SC SC
POP 12HR 60 60 30 40 20
QPF 12HR 0.14 0.32 0.03 0.01 0.04
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS C L C C C S S S C S S
TSTMS C S S
HEAT INDEX 100 87 85 83
MAX HEAT 103 105 85 86
DATE MON 09/07/26 TUE 09/08/26 WED 09/09/26 THU 09/10/26
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 80 66 82 68 86 74 90
TEMP 68 69 79 74 70 70 79 77 71 71 84 82 77 76 88 83
DEWPT 65 63 61 61 62 63 61 63 64 63 66 68 66 66 69 69
PWIND DIR E NE S S SW S SW W
WIND CHAR LT LT LT LT LT GN GN GN
AVG CLOUDS FW FW CL FW FW FW FW FW SC SC SC FW SC FW FW FW
POP 12HR 5 0 0 0 0 0 5 20
RAIN SHWRS S
TSTMS S
WVZ502-042000-
PETERSBURG WV
38.99N 79.15W ELEV. 963 FT
229 PM EDT FRI SEP 4 2026
DATE FRI 09/04/26 SAT 09/05/26 SUN 09/06/26
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 92 68 87 61 80
TEMP 90 80 75 72 70 70 79 85 84 74 69 66 63 61 70 77 78 70
DEWPT 71 71 70 69 68 68 72 72 71 69 68 65 63 61 64 63 62 61
RH 54 74 84 90 93 93 79 65 65 84 97 97100100 81 62 58 73
WIND DIR W SW SW S SE SE W NW N NE N NE N NE NE NE NE E
WIND SPD 6 3 3 2 2 1 2 4 4 3 1 1 2 3 3 3 4 3
CLOUDS B2 B1 FW B1 B2 B2 B2 B1 B1 B1 B2 OV OV B2 B2 B1 B1 SC
POP 12HR 60 50 60 70 30
QPF 12HR 0.04 0.07 0.09 0.25 0.01
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS L C C C C C C C C L C C C C
TSTMS C C C S S C C S
HEAT INDEX 96 83 91 89
MAX HEAT 95 96 91 91
SVR TSTORM A A
DATE MON 09/07/26 TUE 09/08/26 WED 09/09/26 THU 09/10/26
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 82 56 87 61 89 68 87
TEMP 61 57 79 73 60 58 84 76 64 63 87 80 72 69 85 78
DEWPT 59 57 61 60 58 57 62 63 60 59 66 66 63 64 68 65
PWIND DIR NE E S S SW W SW W
WIND CHAR LT LT LT LT LT LT LT GN
AVG CLOUDS SC SC SC SC SC SC FW SC SC SC SC SC SC SC SC SC
POP 12HR 5 5 0 5 0 5 10 20
RAIN SHWRS S
TSTMS S
MDZ014-042000-
ANNAPOLIS MD
38.99N 76.49W ELEV. 7 FT
229 PM EDT FRI SEP 4 2026
DATE FRI 09/04/26 SAT 09/05/26 SUN 09/06/26
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 91 72 81 67 78
TEMP 88 82 77 74 73 74 78 79 79 78 73 71 68 69 75 76 76 74
DEWPT 75 73 73 73 71 70 68 66 66 65 66 65 63 63 64 62 61 61
RH 66 74 87 97 93 87 71 64 64 64 79 81 84 81 69 62 60 64
WIND DIR NW W N NW NW N NE NE NE NE NE NE NE NE NE NE NE E
WIND SPD 6 1 0 2 4 5 8 8 6 4 3 4 6 8 10 10 10 6
CLOUDS B1 B2 B1 B1 B2 B2 SC B2 B1 B1 B1 SC SC FW FW SC SC SC
POP 12HR 60 60 30 20 10
QPF 12HR 0.04 0.27 0 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS C L C C C C S S
TSTMS C S S
HEAT INDEX 98 87
MAX HEAT 103 103 84 83 82
DATE MON 09/07/26 TUE 09/08/26 WED 09/09/26 THU 09/10/26
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 78 64 84 66 88 73 92
TEMP 67 68 76 75 67 67 80 78 70 69 85 83 76 75 90 84
DEWPT 63 61 58 59 61 61 63 63 63 63 68 68 66 66 70 67
PWIND DIR E E SW SW SW S SW W
WIND CHAR LT LT LT LT LT GN GN GN
AVG CLOUDS SC FW FW FW FW FW FW SC SC SC SC SC SC SC SC SC
POP 12HR 5 0 0 0 0 5 10 20
RAIN SHWRS S
TSTMS S
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page