260
FOUS51 KLWX 232101
PFMLWX
POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
500 PM EDT SUN AUG 23 2026
VAZ054-240800-
REAGAN NATIONAL AIRPORT-ARLINGTON VA
38.86N 77.03W ELEV. 66 FT
500 PM EDT SUN AUG 23 2026
DATE 08/23/26 MON 08/24/26 TUE 08/25/26 WED
EDT 3HRLY 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
MIN/MAX 63 85 63 86 66
TEMP 82 75 70 66 64 65 77 82 84 77 69 65 63 65 77 82 84 77 71 68 66 68
DEWPT 59 56 56 56 56 57 57 56 54 52 54 54 54 55 56 56 56 57 59 59 59 60
RH 46 52 61 70 75 75 50 41 36 42 59 68 72 70 48 41 38 50 66 73 78 76
WIND DIR W W NW W SW W W W W NW NW NW NW NW NW W W W W NW N NE
WIND SPD 12 9 8 3 4 5 10 11 11 9 6 5 6 6 10 9 9 6 3 3 0 2
CLOUDS SC FW CL FW CL CL CL FW FW FW FW FW CL FW FW FW SC 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
RAIN SHWRS S
TSTMS S
HEAT INDEX 82 82 82
MAX HEAT 82 82 83 82 83
DATE 08/26 THU 08/27/26 FRI 08/28/26 SAT 08/29/26 SUN 08/30/26
EDT 6HRLY 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
MAX/MIN 88 71 88 72 89 71 87 70 87
TEMP 85 79 73 72 85 78 73 73 86 81 73 72 84 80 72 72 84 80
DEWPT 62 63 67 68 70 69 70 70 70 68 68 67 66 65 66 67 67 66
PWIND DIR SE S S S W W NE E SE
WIND CHAR LT GN GN GN LT LT LT LT GN
AVG CLOUDS FW B1 B1 B1 B1 B2 B1 SC SC SC B1 SC SC FW SC SC SC SC
POP 12HR 5 40 70 50 20 10 10 20 20
RAIN SHWRS C C C L C S S S S
TSTMS S C C S S
MDZ013-240800-
BALTIMORE/WASHINGTON AIRPORT-ANNE ARUNDEL MD
39.19N 76.67W ELEV. 154 FT
500 PM EDT SUN AUG 23 2026
DATE 08/23/26 MON 08/24/26 TUE 08/25/26 WED
EDT 3HRLY 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
MIN/MAX 62 82 61 85 64
TEMP 81 72 68 64 62 64 76 80 80 71 66 63 62 63 76 83 82 74 69 66 64 66
DEWPT 63 61 59 58 57 59 60 58 56 57 57 56 56 58 60 59 60 62 63 62 62 64
RH 54 68 73 81 84 84 58 47 44 61 73 78 81 84 58 44 47 66 81 87 93 93
WIND DIR W W W W W W W W W NW NW NW W W NW W W NW NW NW N N
WIND SPD 10 5 4 2 2 3 8 10 9 4 3 2 3 3 6 6 6 3 1 1 1 1
CLOUDS SC FW CL CL FW CL CL FW FW FW FW FW FW FW FW FW SC 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
RAIN SHWRS S
TSTMS S
HEAT INDEX 82 81 80 83 82
MAX HEAT 82 81 82 83 83
DATE 08/26 THU 08/27/26 FRI 08/28/26 SAT 08/29/26 SUN 08/30/26
EDT 6HRLY 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
MAX/MIN 86 70 87 70 88 69 85 68 85
TEMP 85 77 70 71 84 76 71 72 85 79 71 70 83 77 70 70 83 77
DEWPT 65 67 69 70 73 72 71 71 73 71 69 68 69 69 67 68 70 70
PWIND DIR SE S S S W NW NE E SE
WIND CHAR LT LT GN LT LT LT LT LT LT
AVG CLOUDS FW SC B1 B1 B1 B2 B1 B1 SC SC B1 SC FW SC SC SC SC SC
POP 12HR 5 40 70 50 20 10 10 10 20
RAIN SHWRS S C C L C S S S
TSTMS S C C S S
MDZ011-240800-
BALTIMORE INNER HARBOR-BALTIMORE CITY MD
39.28N 76.61W ELEV. 20 FT
500 PM EDT SUN AUG 23 2026
DATE 08/23/26 MON 08/24/26 TUE 08/25/26 WED
EDT 3HRLY 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
MIN/MAX 63 84 63 86 65
TEMP 82 73 69 65 63 65 76 81 80 72 67 64 63 65 77 83 83 75 70 67 65 67
DEWPT 59 56 56 56 56 56 56 54 53 53 54 55 55 55 55 55 57 57 59 60 60 60
RH 46 55 63 73 78 73 50 39 39 51 63 73 75 70 47 38 41 54 68 78 84 78
WIND DIR W W NW W W W W W W NW NW NW W W NW W W NW NW NW NW N
WIND SPD 10 5 3 1 2 3 8 10 10 4 2 1 2 3 6 6 8 2 1 1 1 0
CLOUDS SC FW CL CL FW CL CL FW FW FW FW CL FW CL FW SC SC 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
RAIN SHWRS S
TSTMS S
HEAT INDEX 82 81 80
MAX HEAT 82 81 82 82 83
DATE 08/26 THU 08/27/26 FRI 08/28/26 SAT 08/29/26 SUN 08/30/26
EDT 6HRLY 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
MAX/MIN 87 71 88 71 88 70 86 69 86
TEMP 86 78 72 72 85 77 72 72 86 80 72 71 84 78 70 71 83 78
DEWPT 60 62 67 68 69 69 70 70 69 68 68 66 65 64 65 65 66 66
PWIND DIR SE S S S W NW NE E SE
WIND CHAR LT LT LT LT LT LT LT LT LT
AVG CLOUDS FW B1 B1 B1 B1 B2 B1 B1 SC SC SC SC FW SC SC SC SC SC
POP 12HR 5 40 70 50 20 10 5 10 20
RAIN SHWRS S C C L C S S S
TSTMS S C C S S
WVZ052-240800-
MARTINSBURG AIRPORT-BERKELEY WV
39.41N 77.98W ELEV. 558 FT
500 PM EDT SUN AUG 23 2026
DATE 08/23/26 MON 08/24/26 TUE 08/25/26 WED
EDT 3HRLY 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
MIN/MAX 58 80 56 83 58
TEMP 77 68 62 59 58 61 72 78 77 68 61 58 56 59 73 81 80 72 64 60 58 61
DEWPT 56 56 55 55 55 57 56 54 53 54 54 54 53 55 57 57 57 58 59 59 58 59
RH 48 65 78 87 90 87 57 43 43 61 78 86 90 87 57 44 45 61 84 96100 93
WIND DIR W W SW SW SW SW W W W NW N W W W NW NW NW NW N N N N
WIND SPD 11 5 3 3 4 5 10 10 10 4 0 2 3 3 8 8 6 3 0 0 0 0
CLOUDS FW CL CL FW FW FW FW FW FW FW FW CL CL FW FW SC SC FW FW FW SC SC
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 80
MAX HEAT 81 81
DATE 08/26 THU 08/27/26 FRI 08/28/26 SAT 08/29/26 SUN 08/30/26
EDT 6HRLY 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
MAX/MIN 85 65 86 65 86 64 83 63 84
TEMP 83 78 67 68 84 77 67 67 84 77 66 67 82 75 66 66 82 77
DEWPT 61 62 64 66 68 68 67 67 67 66 65 65 64 63 63 64 66 66
PWIND DIR S S S SW NW NW N N SW
WIND CHAR LT LT LT LT LT LT LT LT LT
AVG CLOUDS SC B1 B1 B1 SC B2 B1 SC SC SC FW SC FW SC SC SC SC B1
POP 12HR 5 30 60 40 10 5 5 10 10
RAIN SHWRS C S S L C
TSTMS S C S
VAZ506-240800-
WASHINGTON DULLES AIRPORT-LOUDOUN VA
38.96N 77.45W ELEV. 321 FT
500 PM EDT SUN AUG 23 2026
DATE 08/23/26 MON 08/24/26 TUE 08/25/26 WED
EDT 3HRLY 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
MIN/MAX 59 83 58 84 61
TEMP 81 71 65 62 59 61 75 80 80 71 64 61 58 61 75 81 82 74 67 63 61 63
DEWPT 62 62 58 57 56 58 61 59 58 57 56 55 55 56 60 62 63 63 63 62 61 63
RH 53 73 78 84 90 90 62 49 47 61 75 81 90 84 60 53 53 69 87 97100100
WIND DIR W W W SW SW SW W W W NW NW NW W NW NW NW W W N N N N
WIND SPD 10 5 4 1 2 2 8 9 9 5 3 1 2 3 6 6 4 2 0 0 0 0
CLOUDS SC FW CL FW CL CL CL SC FW FW FW FW FW FW FW FW FW FW FW SC FW FW
POP 12HR 0 0 0 0 0
QPF 12HR 0 0 0 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S
TSTMS S
HEAT INDEX 82 81 81 82 83
MAX HEAT 82 81 82 82 83
DATE 08/26 THU 08/27/26 FRI 08/28/26 SAT 08/29/26 SUN 08/30/26
EDT 6HRLY 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
MAX/MIN 88 68 88 68 88 67 86 66 86
TEMP 85 78 69 70 84 78 70 70 85 79 70 69 83 77 69 68 84 78
DEWPT 67 67 68 70 73 72 70 70 73 71 69 68 70 68 67 68 71 70
PWIND DIR S S S S NW NW N E S
WIND CHAR LT LT GN LT LT LT LT LT LT
AVG CLOUDS FW SC B1 B1 SC B2 B1 B1 SC SC SC SC FW SC SC SC SC SC
POP 12HR 5 40 60 40 10 10 5 10 20
RAIN SHWRS C C S L C S
TSTMS S S C C S
VAZ037-240800-
CHARLOTTESVILLE AIRPORT-ALBEMARLE VA
38.14N 78.45W ELEV. 640 FT
500 PM EDT SUN AUG 23 2026
DATE 08/23/26 MON 08/24/26 TUE 08/25/26 WED
EDT 3HRLY 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
MIN/MAX 59 84 56 84 62
TEMP 81 71 64 60 59 61 77 82 82 71 64 59 56 58 75 82 82 72 67 64 62 64
DEWPT 54 56 55 54 54 56 57 54 52 53 53 53 52 54 55 55 55 58 58 57 56 57
RH 39 59 73 81 83 84 50 38 35 53 67 80 86 86 50 40 40 61 73 78 81 78
WIND DIR W NW W W W W W W NW N NW N N W N SW S N N N N N
WIND SPD 9 5 4 1 3 3 6 6 6 6 3 0 0 3 0 2 4 0 0 0 0 0
CLOUDS FW CL CL FW CL CL CL CL FW FW CL FW FW FW FW FW FW FW FW FW SC 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 81 82 81 82
DATE 08/26 THU 08/27/26 FRI 08/28/26 SAT 08/29/26 SUN 08/30/26
EDT 6HRLY 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
MAX/MIN 86 67 86 67 87 66 85 67 85
TEMP 84 78 68 68 84 77 69 68 85 78 70 67 83 77 69 68 83 78
DEWPT 63 66 66 67 70 70 69 68 68 69 68 67 67 68 66 66 68 69
PWIND DIR S S S SW S NW E E S
WIND CHAR LT LT LT LT LT LT LT LT LT
AVG CLOUDS FW SC B1 B1 SC B2 B1 SC SC SC SC SC FW FW SC SC SC SC
POP 12HR 5 30 60 40 20 10 10 30 20
RAIN SHWRS C S S L C S C S
TSTMS S S C S S S
MDZ003-240800-
HAGERSTOWN AIRPORT-WASHINGTON MD
39.71N 77.73W ELEV. 705 FT
500 PM EDT SUN AUG 23 2026
DATE 08/23/26 MON 08/24/26 TUE 08/25/26 WED
EDT 3HRLY 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
MIN/MAX 57 79 56 82 59
TEMP 76 68 62 59 57 60 71 77 74 67 61 58 56 58 73 80 78 71 64 61 59 61
DEWPT 60 59 58 57 56 59 59 57 56 57 56 55 54 57 61 61 61 62 62 61 59 61
RH 58 73 87 93 96 96 66 50 53 70 84 90 93 96 66 52 56 73 93100100100
WIND DIR W W SW S S SW W W W NW NW W SW W NW NW NW NW N N N N
WIND SPD 11 4 2 2 3 4 10 10 10 4 2 2 2 2 5 8 6 3 1 0 0 1
CLOUDS SC CL FW FW FW CL FW SC SC FW FW CL CL FW FW SC SC FW FW SC 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 81
DATE 08/26 THU 08/27/26 FRI 08/28/26 SAT 08/29/26 SUN 08/30/26
EDT 6HRLY 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
MAX/MIN 85 66 86 66 85 64 83 63 84
TEMP 84 76 67 68 84 76 68 68 83 77 66 66 81 75 65 66 82 77
DEWPT 64 64 65 67 70 70 68 68 70 68 66 65 66 65 63 64 68 68
PWIND DIR S SE S S NW N N NE SW
WIND CHAR LT LT LT LT LT LT LT LT LT
AVG CLOUDS SC B1 SC B1 SC B2 B1 B1 SC SC SC FW FW SC SC SC SC SC
POP 12HR 0 30 60 40 10 5 5 10 10
RAIN SHWRS C S S L C
TSTMS S C C
MDZ017-240800-
PATUXENT RIVER NAS MD
38.29N 76.41W ELEV. 39 FT
500 PM EDT SUN AUG 23 2026
DATE 08/23/26 MON 08/24/26 TUE 08/25/26 WED
EDT 3HRLY 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
MIN/MAX 67 85 67 84 68
TEMP 83 75 72 69 68 70 78 83 83 75 72 69 67 69 76 81 81 74 72 70 68 71
DEWPT 63 64 63 61 60 62 61 60 60 61 60 59 59 60 60 59 59 61 62 63 63 65
RH 51 69 73 76 76 76 56 46 46 62 66 70 75 73 58 47 47 64 71 78 84 81
WIND DIR W W W NW W W W SW W W N N N NW NW NW SW SW SW W W W
WIND SPD 6 4 4 4 2 3 4 6 6 4 5 5 5 5 5 3 4 3 3 3 2 2
CLOUDS FW FW FW SC SC CL 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 84 83 83 81 81
MAX HEAT 84 83 84 81 82
DATE 08/26 THU 08/27/26 FRI 08/28/26 SAT 08/29/26 SUN 08/30/26
EDT 6HRLY 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
MAX/MIN 86 73 86 72 87 72 85 72 85
TEMP 85 78 74 74 82 79 74 74 84 79 74 74 82 79 74 74 82 79
DEWPT 65 67 70 71 72 72 72 73 73 72 71 71 70 70 70 70 71 71
PWIND DIR S S SE S SW W NE SE SE
WIND CHAR LT GN GN LT LT LT LT LT LT
AVG CLOUDS FW SC SC B1 B1 B2 B2 B1 SC SC SC B1 SC SC SC SC SC SC
POP 12HR 5 30 60 60 20 20 10 20 20
RAIN SHWRS C C L L S S S S S S
TSTMS S C S
WVZ502-240800-
PETERSBURG WV
38.99N 79.15W ELEV. 963 FT
500 PM EDT SUN AUG 23 2026
DATE 08/23/26 MON 08/24/26 TUE 08/25/26 WED
EDT 3HRLY 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
MIN/MAX 56 79 52 83 56
TEMP 74 67 61 58 57 58 70 76 75 66 59 55 52 54 72 80 80 69 62 58 56 58
DEWPT 56 55 55 54 53 55 54 52 53 53 53 52 51 52 56 57 57 58 58 56 54 55
RH 53 65 81 86 86 90 57 43 46 63 80 90 96 93 57 45 45 68 87 93 93 90
WIND DIR W SE SW S S E W W W W SW SW SW SW NW NW NW NW W N N SW
WIND SPD 10 4 3 3 3 3 8 9 9 3 1 2 2 2 1 2 4 2 1 0 0 1
CLOUDS FW CL FW FW SC FW CL CL CL FW FW CL FW FW FW FW FW FW FW SC 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
MAX HEAT 80 81
DATE 08/26 THU 08/27/26 FRI 08/28/26 SAT 08/29/26 SUN 08/30/26
EDT 6HRLY 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
MAX/MIN 88 63 88 63 87 60 86 61 87
TEMP 85 76 65 65 85 77 65 65 84 76 63 63 83 75 64 64 84 77
DEWPT 60 63 62 63 67 68 65 65 67 66 63 63 65 64 62 63 66 67
PWIND DIR S SW SW SW W W NW NW SW
WIND CHAR LT LT LT LT LT LT LT LT LT
AVG CLOUDS SC SC B1 SC SC B1 SC SC SC SC FW SC FW FW SC SC SC SC
POP 12HR 5 10 50 30 10 5 10 5 20
RAIN SHWRS S C C S
TSTMS C S S
MDZ014-240800-
ANNAPOLIS MD
38.99N 76.49W ELEV. 7 FT
500 PM EDT SUN AUG 23 2026
DATE 08/23/26 MON 08/24/26 TUE 08/25/26 WED
EDT 3HRLY 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
MIN/MAX 65 83 64 83 67
TEMP 84 76 71 68 65 67 77 82 82 75 70 67 64 66 77 82 83 76 71 69 67 69
DEWPT 60 59 60 59 59 59 59 58 56 56 58 58 58 58 58 58 59 60 63 63 63 64
RH 44 56 68 73 81 75 54 44 41 52 66 73 81 75 52 44 44 58 76 81 87 84
WIND DIR W W NW N N W W W W NW NW NW NW W NW W W SW N N N N
WIND SPD 10 6 4 0 0 4 8 10 9 6 4 2 4 5 6 8 8 4 0 0 0 0
CLOUDS B1 FW CL FW FW CL FW FW SC FW FW FW CL FW FW FW SC SC 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
RAIN SHWRS S
TSTMS S
HEAT INDEX 84 82 82 82 83
MAX HEAT 84 82 82 82 83
DATE 08/26 THU 08/27/26 FRI 08/28/26 SAT 08/29/26 SUN 08/30/26
EDT 6HRLY 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
MAX/MIN 84 72 87 71 88 71 86 70 86
TEMP 83 78 72 73 85 78 72 73 86 80 73 73 84 79 72 72 84 79
DEWPT 64 67 69 70 73 72 71 72 73 71 70 69 70 68 68 68 70 70
PWIND DIR SE S S S SW W NE E SE
WIND CHAR LT LT GN LT LT LT LT LT LT
AVG CLOUDS FW SC B1 B1 B1 B2 B2 B1 SC SC SC SC SC FW SC SC SC SC
POP 12HR 5 40 60 60 20 10 10 10 20
RAIN SHWRS S C C L L S S S
TSTMS S C C S S
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