Extreme Heat in the Central US Expands to the Southeast; Severe Weather & Flash Flooding Threats in the Plains & Upper Midwest Tonight.

Dangerous heat continues across portions of the Central and Southeast U.S. through July. Heavy rains, flooding, & severe weather are possible across the Plains & Upper Midwest to the upper Great Lakes tonight, with the heavy rain and flooding threat continuing through Friday. Tropical Depression 12W brings heavy rain to Guam & the Marianas through Saturday. Read More >

Location	Sky/Weather	Temp. (°F)	Dewpt. (°F)	Humidity (%)	Wind (mph)	Pressure (in)	Remarks
Washington National	Mostly Cloudy	75	68	78	S10	30.23R
Dulles Intl.	Partly Cloudy	74	67	78	S7	30.23R
BWI Airport	Partly Cloudy	73	68	84	CALM	30.22S
Baltimore/Inner Harbor, MD	Missing	79	67	66	MISG	30.23S
Charlottesville, VA	Clear	72	67	84	SW5	30.24R
Fredericksburg, VA	Clear	72	67	85	CALM	30.22S
Staunton, VA	Clear	66	65	96	CALM	30.27S
Winchester, VA	Partly Cloudy	72	64	78	S5	30.21S
Annapolis, MD	Mostly Cloudy	76	67	73	S9	30.23R
Hagerstown Airport, MD	Clear	76	62	62	S9	30.21R
Martinsburg, WV	Mostly Cloudy	73	66	78	S3	30.20S
Petersburg, WV	Partly Cloudy	68	68	100	CALM	30.21R
Cumberland, MD	Cloudy	74	67	76	CALM	30.24R

Hourly observations from: 100 AM EDT THU JUL 24 2025

NZUS51 KLWX 240510
HRRLWX

HOURLY OBSERVATIONS AROUND THE LWX CWA
100 AM EDT THU JUL 24 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    75  68  78 S10       30.23R                  
BALT INNER HAR   N/A     79  67  66 MISG      30.23S                  


...WASHINGTON SUBURBS...
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
DULLES         PTCLDY    74  67  78 S7        30.23R                  
LEESBURG*      PTCLDY    73  70  88 S8        30.24S                  
FT BELVOIR     PTCLDY    74  68  80 CALM      30.21R                  
QUANTICO       MOCLDY    77  70  79 S14       30.24R                  
ANDREWS AFB    CLEAR     73  66  78 S7        30.22R                  
COLLEGE PARK*  CLEAR     74  68  80 SE3       30.24R                  

...CENTRAL VIRGINIA...
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CULPEPER*      CLEAR     70  67  92 CALM      30.24S                  
CHARLOTTESVILL CLEAR     72  67  84 SW5       30.24R                  
WARRENTON*     CLEAR     73  67  83 SE3       30.24R                  
ORANGE*        CLEAR     68  68 100 CALM      30.24R                  
GORDONSVILLE*  CLEAR     68  68 100 CALM      30.23S                  
FREDERICKSBRG* CLEAR     72  67  85 CALM      30.22S                  
LOUISA*        CLEAR     70  67  92 SE5       30.24S                  
ASHLAND        CLEAR     70  67  90 CALM      30.25R                  
RICHMOND       CLEAR     70  67  90 SE5       30.23S                  

...NORTHEAST/CENTRAL MARYLAND...
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
BWI AIRPORT    PTCLDY    73  68  84 CALM      30.22S                  
ANNAPOLIS      MOCLDY    76  67  73 S9        30.23R                  
WESTMINSTER*   CLEAR     73  66  78 S8        30.24S                  
FREDERICK*     CLEAR     72  64  78 CALM      30.22S                  
FORT MEADE*    CLEAR     68  66  94 CALM      30.25S                  

...SOUTHERN MARYLAND...
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
ST MARYS CITY  CLEAR     73  67  81 CALM      30.23S                  

...MARYLAND EASTERN SHORE...
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
SALISBURY      CLEAR     66  64  93 CALM      30.25S                  
CAMBRIDGE*     CLEAR     68  66  94 CALM      30.24S                  
OCEAN CITY     CLEAR     73  62  68 SE5       30.25S                  
BAY BRIDGE AP* CLEAR     75  66  73 S10       30.23S                  
EASTON*        CLEAR     70  66  86 SE3       30.24S                  

...SHENANDOAH VALLEY...
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
MARTINSBURG    MOCLDY    73  66  78 S3        30.20S                  
HAGERSTOWN APT CLEAR     76  62  62 S9        30.21R                  
STAUNTON*      CLEAR     66  65  96 CALM      30.27S                  
WINCHESTER*    PTCLDY    72  64  78 S5        30.21S                  
NEW MARKET*    CLEAR    N/A N/A N/A CALM      30.24S                  
WAYNESBORO*    CLEAR     68  64  84 CALM      30.27S                  

...APPALACHIANS...
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
PETERSBURG WV* PTCLDY    68  68 100 CALM      30.21R                  
CUMBERLAND*    CLOUDY    74  67  76 CALM      30.24R                  
HOT SPRINGS*   CLEAR     64  60  87 S7        30.37R FOG              
ELKINS         CLEAR     69  66  90 SE3       30.25R                  
JOHNSTOWN      CLEAR     70  63  78 S8        30.24R                  
ALTOONA        CLEAR     71  65  81 S6        30.22S                  

...SOUTHERN PENNSYLVANIA/DELAWARE...
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
YORK           CLEAR     72  66  81 CALM      30.22R                  
WILMINGTON     CLEAR     72  63  73 S8        30.24S                  

...MARINE OBSERVATIONS...
  
STATION/POSITION TIME  TEMP    WIND        PRES
                       AIR SEA DIR/SP/G
                 (UTC) (F)     (DEG/KT/KT) (MB)
THOMAS PT LIGHT  0500   77     130/ 17/ 19 1024.4R
TOLCHESTER       0430   73 84  150/  6/  9 1023.7F
COVE POINT       0430   77     120/ 13/ 15 1024.6R
GOOSES REEF      0448   76 83  120/ 14/ 16   N/A
BALT HARBOR      0430   77 83  160/  3/  6   N/A
BALT KEY BRIDGE  0430   76     160/ 11/ 13 1023.7R
ANNAPOLIS USNA   0430   78 85  150/  8/ 13 1023.2R
ANNAPOLIS CBIBS  0448   76 83  160/ 16/ 19   N/A
WASH DC CHANNEL  0430   77 84  170/  6/  8 1023.7R
DAHLGREN         0430   75 85  160/  5/  8 1023.2R
LEWISETTA        0430   76 85  150/  5/  6 1023.9R
SOLOMONS ISLAND  0430   77 85  170/  8/ 10 1023.5R
PINEY POINT      0430          160/ 14/ 16   N/A
POTOMAC BUOY     0448   77 83  140/ 10/ 14   N/A
CAMBRIDGE PIER   0430   72 85  160/  5/  6 1024.3S
BISHOPS HEAD     0430   76 83  130/ 10/ 13 1024.2F
CHESAPEAKE CITY  0430   71 85  160/  2/  3 1024.0S

For past hours' observations from around the NWS Sterling Area, please visit:
https://forecast.weather.gov/product.php?site=LWX&issuedby=LWX&product=RWR&format=CI&version=1

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