National Weather Service United States Department of Commerce

Heat Wave Expands to the East Coast; Flash Flooding Likely in the Central Plains into the Midwest; Severe Thunderstorms in the Northeast

Dangerous, prolonged heat is ongoing in the Mid-South to Mid-Mississippi Valley and heat expands into the Northeast for a brief period today. Widely scattered instances of flash flooding due to heavy rains are forecast from northeast Kansas to much of Indiana. Scattered strong to severe thunderstorms are possible across parts of New England, northern Mid-Atlantic, and North Dakota. Read More >


Location Sky/Weather Temp.
(°F)
Dewpt.
(°F)
Humidity
(%)
Wind
(mph)
Pressure
(in)
Remarks
Washington National Mostly Cloudy 80 73 79 N3 30.02S
Dulles Intl. Mostly Cloudy 75 72 90 CALM 30.04S
BWI Airport Cloudy 76 73 91 W3 30.02S
Baltimore/Inner Harbor, MD Missing
87 73 62 MISG 30.02S HX94
Charlottesville, VA Light Rain 75 72 90 SW3 30.07S
Fredericksburg, VA Partly Cloudy 77 77 100 CALM 30.02S
Staunton, VA Partly Cloudy 70 70 100 CALM 30.14S
Winchester, VA Partly Cloudy 77 72 83 SW7 30.07S
Annapolis, MD Mostly Cloudy 80 74 81 NW3 30.01S
Hagerstown Airport, MD Mostly Cloudy 80 70 71 W3 30.06S
Martinsburg, WV Partly Cloudy 75 71 87 CALM 30.05S
Petersburg, WV Partly Cloudy 71 71 100 CALM 30.10S
Patuxent River, MD Partly Cloudy 77 73 87 SW6 30.01S
Cumberland, MD Partly Cloudy 76 70 79 NE5 30.13S
Oakland, MD Partly Cloudy 70 68 94 VRB3 30.21S
Hourly observations from: 200 AM EDT SAT JUL 26 2025
NZUS51 KLWX 260611
HRRLWX

HOURLY OBSERVATIONS AROUND THE LWX CWA
200 AM EDT SAT JUL 26 2025

Note: "FAIR" indicates few or no clouds below 12,000 feet
with no significant weather and/or obstructions to visibility.

 * =Non NWS site. Station does not report significant weather 
    and/or obstructions to visibility.

...DOWNTOWN AREAS...
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
WASHINGTON NAT MOCLDY    80  73  79 N3        30.02S                  
BALT INNER HAR   N/A     87  73  62 MISG      30.02S HX  94           


...WASHINGTON SUBURBS...
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
DULLES         MOCLDY    75  72  90 CALM      30.04S                  
MANASSAS*      PTCLDY    74  73  97 CALM      30.05R                  
LEESBURG*      PTCLDY    77  75  94 NW3       30.06S                  
GAITHERSBURG*  MOCLDY    74  50  43 CALM      30.06S                  
FT BELVOIR     PTCLDY    74  73  96 CALM      30.00S                  
QUANTICO       PTCLDY    79  73  83 CALM      30.03S FOG              
ANDREWS AFB    MOCLDY   N/A N/A N/A N3        30.02S                  
COLLEGE PARK*  MOCLDY    77  73  88 CALM      30.04R                  

...CENTRAL VIRGINIA...
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CULPEPER*      PTCLDY    74  73  95 CALM      30.06S                  
CHARLOTTESVILL LGT RAIN  75  72  90 SW3       30.07S                  
WARRENTON*     PTCLDY    75  72  91 CALM      30.05R FOG              
ORANGE*        PTCLDY    75  73  94 SW3       30.06R                  
GORDONSVILLE*  PTCLDY    77  73  88 CALM      30.05S                  
FREDERICKSBRG* PTCLDY    77  77 100 CALM      30.02S                  
LOUISA*        PTCLDY    78  73  84 SW3       30.06F                  
ASHLAND        PTCLDY    79  73  82 CALM      30.05S                  
RICHMOND       PTCLDY    81  73  76 CALM      30.03S                  

...NORTHEAST/CENTRAL MARYLAND...
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
BWI AIRPORT    CLOUDY    76  73  91 W3        30.02S                  
ANNAPOLIS      MOCLDY    80  74  81 NW3       30.01S                  
WESTMINSTER*   MOCLDY    79  72  78 CALM      30.06S                  
FREDERICK*       N/A     75  73  94 CALM      30.05R                  
FORT MEADE*    MOCLDY    73  72  94 CALM      30.06R                  

...SOUTHERN MARYLAND...
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
PATUXENT RIVER PTCLDY    77  73  87 SW6       30.01S                  
ST MARYS CITY  PTCLDY    78  75  90 W3        30.00F                  

...MARYLAND EASTERN SHORE...
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
SALISBURY      PTCLDY    78  74  87 CALM      30.00F                  
CAMBRIDGE*     CLEAR     77  75  94 CALM      30.01R                  
OCEAN CITY     PTCLDY    75  72  90 W3        30.00F                  
BAY BRIDGE AP* MOCLDY    81 N/A N/A CALM      30.01S                  
EASTON*        MOCLDY    75  75 100 CALM      30.00F                  

...SHENANDOAH VALLEY...
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
MARTINSBURG    PTCLDY    75  71  87 CALM      30.05S                  
HAGERSTOWN APT MOCLDY    80  70  71 W3        30.06S                  
STAUNTON*      PTCLDY    70  70 100 CALM      30.14S                  
WINCHESTER*    PTCLDY    77  72  83 SW7       30.07S                  
NEW MARKET*    PTCLDY   N/A N/A N/A CALM      30.11F                  
WAYNESBORO*    PTCLDY    72  72  99 CALM      30.14S                  

...APPALACHIANS...
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
PETERSBURG WV* PTCLDY    71  71 100 CALM      30.10S                  
CUMBERLAND*    PTCLDY    76  70  79 NE5       30.13S                  
OAKLAND*       PTCLDY    70  68  94 VRB3      30.21S                  
HOT SPRINGS*   CLEAR     71  67  88 W5        30.28F                  
ELKINS         FOG       68  68 100 CALM      30.18F VSB 1/4          
BEDFORD PA*    PTCLDY    71  69  95 CALM      30.12R                  
JOHNSTOWN      PTCLDY    69  67  93 S3        30.16S                  
ALTOONA        PTCLDY    71  70  96 CALM      30.13R                  

...SOUTHERN PENNSYLVANIA/DELAWARE...
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
YORK           MOCLDY    74  73  97 CALM      30.05R                  
WILMINGTON     MOCLDY    78  73  84 NW6       30.01F                  

...MARINE OBSERVATIONS...
  
STATION/POSITION TIME  TEMP    WIND        PRES
                       AIR SEA DIR/SP/G
                 (UTC) (F)     (DEG/KT/KT) (MB)
THOMAS PT LIGHT  0600   82     280/  6/  6 1017.2F
TOLCHESTER       0530   77 85   70/  2/  3 1016.3S
COVE POINT       0530   82     240/  4/  5 1016.9F
GOOSES REEF      0548   81 84  290/  6/  8   N/A
BALT HARBOR      0530   81 85   CALM  /  1   N/A
BALT KEY BRIDGE  0530   82     300/  3/  3 1016.7S
ANNAPOLIS USNA   0530   81 86  210/  2/  4 1015.8F
ANNAPOLIS CBIBS  0548   80 83  290/  6/  6   N/A
WASH DC CHANNEL  0530   82 84   CALM  /  2 1016.6F
DAHLGREN         0530   78 86   CALM  /  4 1016.0S
LEWISETTA        0530   82 87  260/  2/  3 1016.3F
SOLOMONS ISLAND  0530   81 85  270/  4/  4 1015.9F
PINEY POINT      0530          330/  2/  3   N/A
POTOMAC BUOY     0548   83 85  270/  6/  8   N/A
CAMBRIDGE PIER   0530   81 86   CALM  /  3 1016.4S
BISHOPS HEAD     0530   84 87  270/  4/  4 1016.2F
CHESAPEAKE CITY  0530   78 86   CALM  /  1 1016.5R

  

 

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