139
FOUS51 KLWX 151829
PFMLWX
POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
229 PM EDT TUE SEP 15 2026
VAZ054-152000-
REAGAN NATIONAL AIRPORT-ARLINGTON VA
38.86N 77.03W ELEV. 66 FT
229 PM EDT TUE SEP 15 2026
DATE TUE 09/15/26 WED 09/16/26 THU 09/17/26
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 62 87 68 89
TEMP 80 74 67 64 63 64 77 85 86 80 73 71 69 70 80 87 87 81
DEWPT 54 54 56 58 59 59 60 60 61 61 62 63 62 62 62 64 65 66
RH 41 50 68 81 87 84 56 43 43 52 68 76 78 76 54 46 48 60
WIND DIR SE SE S S S S S S S S S S S S S S SW S
WIND SPD 9 9 8 6 4 5 8 6 9 9 8 8 8 6 8 9 10 10
CLOUDS FW FW CL FW CL CL FW FW FW FW FW FW SC SC FW SC SC B1
POP 12HR 0 0 0 5 10
QPF 12HR 0 0 0 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS C
TSTMS S
HEAT INDEX 80 85 86 81 81 88 89 83
MAX HEAT 80 85 86 88 89
DATE FRI 09/18/26 SAT 09/19/26 SUN 09/20/26 MON 09/21/26
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 86 66 81 68 85 70 83
TEMP 75 74 84 81 71 67 79 76 70 70 82 79 73 71 81 77
DEWPT 68 69 66 60 58 57 61 61 64 65 67 67 67 67 67 66
PWIND DIR SW N NE E SE S E E
WIND CHAR GN GN GN GN GN GN GN GN
AVG CLOUDS B1 SC SC SC SC SC SC B1 B1 B1 B1 B1 B1 B1 B1 B1
POP 12HR 30 10 5 5 10 40 30 40
RAIN SHWRS C C C C
TSTMS S S S
MDZ013-152000-
BALTIMORE/WASHINGTON AIRPORT-ANNE ARUNDEL MD
39.19N 76.67W ELEV. 154 FT
229 PM EDT TUE SEP 15 2026
DATE TUE 09/15/26 WED 09/16/26 THU 09/17/26
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 60 85 66 88
TEMP 76 69 65 63 61 62 76 83 83 75 71 68 67 68 79 86 86 79
DEWPT 54 55 57 59 59 60 61 62 64 64 63 63 63 63 65 66 68 69
RH 46 61 75 87 93 93 60 49 53 69 76 84 87 84 62 51 55 72
WIND DIR SE SE SE S SW SW S S S S S S SW S S S S S
WIND SPD 5 3 3 2 2 2 4 5 6 4 3 2 2 3 4 6 8 4
CLOUDS CL FW CL CL CL FW FW FW FW FW SC SC SC SC SC SC SC B1
POP 12HR 0 0 5 10 10
QPF 12HR 0 0 0 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS C
TSTMS S
HEAT INDEX 84 84 88 89
MAX HEAT 84 86 88 90
DATE FRI 09/18/26 SAT 09/19/26 SUN 09/20/26 MON 09/21/26
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 71 84 63 79 65 84 67 81
TEMP 73 72 82 79 66 64 76 73 67 67 81 77 70 69 79 75
DEWPT 69 69 66 62 57 57 63 63 64 66 69 69 67 68 69 68
PWIND DIR SW N NE E SE S E E
WIND CHAR LT GN LT LT LT GN LT GN
AVG CLOUDS B1 SC SC SC SC SC B1 B1 B1 B1 B2 B1 B1 B1 B1 B2
POP 12HR 30 10 5 5 20 40 40 40
RAIN SHWRS C S S C C S S C
TSTMS S S S
MDZ011-152000-
BALTIMORE INNER HARBOR-BALTIMORE CITY MD
39.28N 76.61W ELEV. 20 FT
229 PM EDT TUE SEP 15 2026
DATE TUE 09/15/26 WED 09/16/26 THU 09/17/26
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 62 86 68 89
TEMP 78 72 66 64 62 65 77 84 85 79 72 70 69 70 80 87 87 80
DEWPT 52 53 56 58 58 58 59 60 62 62 62 62 63 62 62 64 66 67
RH 40 51 70 81 87 78 54 44 46 56 71 76 81 76 54 46 50 65
WIND DIR SE SE SE S SW SW S S SE S S S S S S S S S
WIND SPD 5 3 3 2 1 1 4 5 8 4 2 1 1 2 4 6 8 4
CLOUDS CL CL CL CL FW FW FW CL FW SC SC SC SC SC SC SC SC B1
POP 12HR 0 0 5 10 10
QPF 12HR 0 0 0 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS C
TSTMS S
HEAT INDEX 84 86 81 88 89 82
MAX HEAT 84 86 88 90
DATE FRI 09/18/26 SAT 09/19/26 SUN 09/20/26 MON 09/21/26
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 85 64 80 68 84 69 82
TEMP 75 73 83 79 68 66 78 74 68 70 81 78 71 70 80 76
DEWPT 69 68 63 57 55 54 57 58 63 64 65 66 66 65 65 64
PWIND DIR SW N NE E SE S E E
WIND CHAR LT GN LT LT LT GN LT GN
AVG CLOUDS B1 SC B1 SC SC SC B1 B1 B1 B1 B2 B1 B1 B1 B2 B1
POP 12HR 30 10 5 5 20 40 40 40
RAIN SHWRS C S C C C S S C
TSTMS S S S
WVZ052-152000-
MARTINSBURG AIRPORT-BERKELEY WV
39.41N 77.98W ELEV. 558 FT
229 PM EDT TUE SEP 15 2026
DATE TUE 09/15/26 WED 09/16/26 THU 09/17/26
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 55 86 64 88
TEMP 78 71 63 59 57 58 76 84 86 79 71 68 66 66 80 86 86 77
DEWPT 53 54 54 54 54 56 59 62 63 63 63 63 63 64 67 69 71 71
RH 42 55 72 83 90 93 56 48 46 58 76 84 90 93 65 57 61 82
WIND DIR S SE S S N N N S S S N N N N N SW SW W
WIND SPD 8 4 5 3 0 0 0 4 5 3 0 0 0 0 0 5 5 2
CLOUDS CL CL CL FW FW FW FW FW FW FW SC FW FW B1 SC B2 B2 B1
POP 12HR 0 0 10 10 60
QPF 12HR 0 0 0 0 0.08
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS L L C
TSTMS C C S
HEAT INDEX 85 87 82 90 91
MAX HEAT 85 87 90 92
DATE FRI 09/18/26 SAT 09/19/26 SUN 09/20/26 MON 09/21/26
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 82 58 78 63 81 63 78
TEMP 72 70 81 75 63 60 76 73 66 65 80 74 67 66 77 72
DEWPT 70 69 66 59 55 54 58 60 62 64 67 67 66 65 66 66
PWIND DIR W N NE SE S S E E
WIND CHAR LT GN LT LT GN GN LT LT
AVG CLOUDS B1 B1 B1 SC SC SC B1 B1 B1 B1 B1 B1 B1 B2 B2 B2
POP 12HR 30 10 0 5 30 50 40 50
RAIN SHWRS C S C C C C C C C
TSTMS S S S S
VAZ506-152000-
WASHINGTON DULLES AIRPORT-LOUDOUN VA
38.96N 77.45W ELEV. 321 FT
229 PM EDT TUE SEP 15 2026
DATE TUE 09/15/26 WED 09/16/26 THU 09/17/26
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 58 87 65 90
TEMP 79 71 64 61 59 61 77 85 85 77 72 68 66 67 80 88 88 79
DEWPT 55 55 56 57 57 58 61 63 64 64 64 63 62 63 65 68 69 70
RH 44 57 75 87 93 90 58 48 50 64 76 84 87 87 60 52 54 74
WIND DIR S SE S S S S S S S S S S S S S S SW SW
WIND SPD 4 5 4 4 3 3 5 5 5 5 4 3 3 3 3 5 5 3
CLOUDS CL CL CL CL FW FW FW FW FW FW SC SC SC FW SC SC SC B1
POP 12HR 0 0 5 5 20
QPF 12HR 0 0 0 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S S C
TSTMS S S S
HEAT INDEX 86 86 82 92 92
MAX HEAT 86 88 92 94
DATE FRI 09/18/26 SAT 09/19/26 SUN 09/20/26 MON 09/21/26
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 85 62 81 65 85 66 82
TEMP 73 72 83 78 66 63 79 74 67 67 82 78 70 68 80 76
DEWPT 70 69 68 63 58 56 64 65 64 66 71 70 68 67 70 69
PWIND DIR W N NE SE SE S E E
WIND CHAR LT GN LT LT GN GN LT LT
AVG CLOUDS B1 B1 SC SC SC SC B1 B1 B1 B1 B1 B1 B1 B1 B1 B1
POP 12HR 30 10 5 5 10 40 30 40
RAIN SHWRS C S C C S C
TSTMS S S S
VAZ037-152000-
CHARLOTTESVILLE AIRPORT-ALBEMARLE VA
38.14N 78.45W ELEV. 640 FT
229 PM EDT TUE SEP 15 2026
DATE TUE 09/15/26 WED 09/16/26 THU 09/17/26
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 57 85 63 89
TEMP 78 71 63 60 58 59 75 84 84 74 70 67 65 65 80 88 86 77
DEWPT 57 57 57 56 56 57 60 62 63 64 64 63 62 62 66 67 69 70
RH 48 61 81 87 93 93 60 48 49 71 81 87 90 90 62 50 57 79
WIND DIR SE N N N N N S SE SE N N N N N S S S N
WIND SPD 4 0 0 0 0 0 4 4 4 0 0 0 0 0 2 5 4 0
CLOUDS FW FW CL CL FW CL FW FW FW CL CL CL CL FW FW SC SC SC
POP 12HR 0 0 0 0 20
QPF 12HR 0 0 0 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S S
TSTMS S
HEAT INDEX 85 85 82 91 90
MAX HEAT 85 86 91 92
DATE FRI 09/18/26 SAT 09/19/26 SUN 09/20/26 MON 09/21/26
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 63 79 64 84 66 82
TEMP 72 71 84 78 69 64 77 73 67 66 82 77 70 67 81 75
DEWPT 69 69 70 67 61 58 62 64 65 65 68 69 68 67 68 69
PWIND DIR NW NE NE E S SW S E
WIND CHAR LT LT LT LT LT LT LT LT
AVG CLOUDS SC SC SC B2 B1 B2 B1 B1 B1 B1 B1 B1 B1 SC B1 B1
POP 12HR 10 60 10 10 10 30 30 50
RAIN SHWRS L C C C
TSTMS C S S
MDZ003-152000-
HAGERSTOWN AIRPORT-WASHINGTON MD
39.71N 77.73W ELEV. 705 FT
229 PM EDT TUE SEP 15 2026
DATE TUE 09/15/26 WED 09/16/26 THU 09/17/26
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 56 86 65 87
TEMP 78 70 62 60 58 60 74 84 86 78 72 69 67 67 78 85 85 77
DEWPT 53 53 53 54 55 56 60 63 65 65 64 64 63 64 68 70 72 72
RH 42 55 72 81 90 87 62 49 50 64 76 84 87 90 71 61 65 85
WIND DIR S SE S S S S S S S S SE SE SE S S SW SW SW
WIND SPD 6 4 5 4 3 2 3 4 4 3 2 2 1 2 2 4 5 3
CLOUDS FW CL CL FW FW CL FW SC FW SC SC FW SC B1 B1 B2 B2 B2
POP 12HR 0 0 10 20 60
QPF 12HR 0 0 0 0 0.07
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S S S L L C
TSTMS C C S
HEAT INDEX 85 88 90 91
MAX HEAT 85 88 90 92
DATE FRI 09/18/26 SAT 09/19/26 SUN 09/20/26 MON 09/21/26
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 82 57 78 63 80 63 78
TEMP 72 70 80 75 62 59 76 73 66 65 78 74 67 65 76 72
DEWPT 70 68 64 60 54 53 60 61 62 64 69 68 66 65 68 67
PWIND DIR W N NE SE S S E SE
WIND CHAR LT GN LT LT GN GN LT LT
AVG CLOUDS B1 B1 B1 SC SC SC SC B1 B2 B2 B2 B2 B1 B2 B2 B2
POP 12HR 30 10 0 5 40 60 50 50
RAIN SHWRS C S C C L C C C C
TSTMS S S S
MDZ017-152000-
PATUXENT RIVER NAS MD
38.29N 76.41W ELEV. 39 FT
229 PM EDT TUE SEP 15 2026
DATE TUE 09/15/26 WED 09/16/26 THU 09/17/26
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 65 80 67 85
TEMP 77 71 68 67 66 68 77 80 79 73 71 70 68 70 79 84 83 77
DEWPT 57 58 60 61 61 62 62 62 62 63 63 64 64 64 65 65 67 66
RH 50 63 76 81 84 81 60 54 56 71 76 81 87 81 62 53 59 69
WIND DIR SE SE SE S S W SE SE SE S S S SW SW S S S S
WIND SPD 4 4 5 4 3 2 4 6 8 6 5 4 4 4 6 9 10 8
CLOUDS FW FW FW FW FW FW FW FW CL CL FW SC 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 86 86
MAX HEAT 81 81 86 87
DATE FRI 09/18/26 SAT 09/19/26 SUN 09/20/26 MON 09/21/26
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 71 83 67 79 69 84 71 83
TEMP 74 73 83 78 72 69 78 74 71 72 82 77 73 72 81 76
DEWPT 67 68 70 66 64 63 64 65 66 67 69 70 69 70 70 70
PWIND DIR SW N NE E SE S SE E
WIND CHAR LT GN GN GN GN GN GN GN
AVG CLOUDS SC SC SC SC SC B1 SC SC SC B1 SC SC SC B1 B1 B1
POP 12HR 10 10 10 5 5 20 20 30
RAIN SHWRS S S C
TSTMS S S
WVZ502-152000-
PETERSBURG WV
38.99N 79.15W ELEV. 963 FT
229 PM EDT TUE SEP 15 2026
DATE TUE 09/15/26 WED 09/16/26 THU 09/17/26
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 91 65 90
TEMP 82 72 64 60 58 59 80 89 91 80 72 69 67 67 82 88 88 77
DEWPT 60 59 58 57 55 57 64 66 67 68 66 65 64 65 70 71 71 71
RH 47 64 81 90 90 93 58 47 45 67 81 87 90 93 67 57 57 82
WIND DIR SE E S SE S SE N NE SE S SW SW SW SW W W W W
WIND SPD 3 2 4 3 1 1 0 1 2 1 2 1 1 2 1 3 3 2
CLOUDS FW FW FW FW FW SC FW FW FW SC SC FW SC B1 B1 B1 B1 B1
POP 12HR 0 0 5 30 40
QPF 12HR 0 0 0 0 0.06
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S C C C C C
TSTMS S C C S
OBVIS PF PF
HEAT INDEX 82 82 92 94 83 86 94 94
MAX HEAT 82 92 94 94 95
DATE FRI 09/18/26 SAT 09/19/26 SUN 09/20/26 MON 09/21/26
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 84 58 82 63 86 63 82
TEMP 70 69 82 76 63 59 79 74 66 65 83 77 68 65 79 74
DEWPT 68 68 69 65 60 57 65 64 63 64 71 69 66 65 70 68
PWIND DIR W N NE SE S SW SW SE
WIND CHAR LT LT LT LT LT LT LT LT
AVG CLOUDS B1 B1 B1 B1 B1 B1 B1 B1 B1 SC B1 B2 B1 B1 B1 B2
POP 12HR 30 50 10 20 20 60 40 60
RAIN SHWRS C C C S S S C L C S C L
TSTMS S S C S S S
MDZ014-152000-
ANNAPOLIS MD
38.99N 76.49W ELEV. 7 FT
229 PM EDT TUE SEP 15 2026
DATE TUE 09/15/26 WED 09/16/26 THU 09/17/26
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 63 82 67 85
TEMP 76 73 67 65 64 65 77 82 81 76 72 70 68 69 80 85 85 79
DEWPT 55 57 60 61 61 60 61 63 64 64 65 64 64 64 64 66 67 68
RH 48 57 78 87 90 84 58 53 56 66 79 81 87 84 58 53 55 69
WIND DIR S SE SE S SW SW S S S S S S SW S S S S S
WIND SPD 5 3 6 5 3 3 6 10 10 8 5 3 4 5 8 11 12 9
CLOUDS FW FW FW FW FW FW FW FW FW FW SC SC SC SC SC SC SC SC
POP 12HR 0 0 0 5 5
QPF 12HR 0 0 0 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S
TSTMS S
HEAT INDEX 83 83 82 87 88
MAX HEAT 83 83 87 88
DATE FRI 09/18/26 SAT 09/19/26 SUN 09/20/26 MON 09/21/26
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 83 66 79 68 84 69 82
TEMP 73 73 83 80 68 67 78 75 68 69 83 78 72 70 81 76
DEWPT 68 69 66 62 61 58 61 62 65 65 67 68 69 67 67 67
PWIND DIR SW N NE E SE S E E
WIND CHAR LT GN GN GN LT GN LT GN
AVG CLOUDS B1 B1 SC SC SC SC B1 B1 B1 B1 B1 B1 B1 B1 B1 B2
POP 12HR 20 10 5 5 10 30 40 30
RAIN SHWRS S S S C C S C
TSTMS S S S
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