Extreme Heat and Tropical Storm Bertha Impacts

Dangerous heat will expand from the Gulf Coast into the Southern Plains and Desert Southwest through week's end. Additional extreme heat impacting the Pacific Northwest will shift to the northern Plains by the weekend. Tropical Storm Bertha is expected to continue to impact portions of the northwestern Gulf Coast from south central Louisiana to the upper Texas coast today. Read More >

Location	Sky/Weather	Temp. (°F)	Dewpt. (°F)	Humidity (%)	Wind (mph)	Pressure (in)	Remarks
Washington National	Mostly Sunny	77	53	43	NE10G17	30.16S
Dulles Intl.	Mostly Sunny	75	53	46	N10G18	30.17F
BWI Airport	Mostly Sunny	76	53	44	NE8	30.16S
Baltimore/Inner Harbor, MD	Missing	78	51	38	MISG	30.17S
Charlottesville, VA	Mostly Sunny	74	55	51	N8G17	30.18R
Fredericksburg, VA	Mostly Sunny	76	55	48	N9	30.15S
Staunton, VA	Sunny	71	54	55	N12	30.23R
Winchester, VA	Sunny	72	43	35	N6	30.19S
Annapolis, MD	Sunny	74	52	46	NW8	30.17S
Hagerstown Airport, MD	Sunny	74	42	31	NE7G18	30.19S
Baltimore/Martin, MD	Mostly Sunny	75	52	43	CALM	30.18
Martinsburg, WV	Sunny	75	42	30	NE9	30.18F
Petersburg, WV	Sunny	71	47	42	VRB3	30.20S
Patuxent River, MD	Mostly Sunny	75	60	59	N9	30.15
Cumberland, MD	Sunny	72	45	38	SE5	30.25S
Oakland, MD	Sunny	64	41	42	CALM	30.25S

Hourly observations from: 1200 PM EDT THU JUL 23 2026

NZUS51 KLWX 231610
HRRLWX

HOURLY OBSERVATIONS AROUND THE LWX CWA
1200 PM EDT THU JUL 23 2026

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 MOSUNNY   77  53  43 NE10G17   30.16S                  
BALT INNER HAR   N/A     78  51  38 MISG      30.17S                  


...WASHINGTON SUBURBS...
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
DULLES         MOSUNNY   75  53  46 N10G18    30.17F                  
MANASSAS*      SUNNY     77  55  46 NE10      30.18S                  
LEESBURG*      SUNNY     73  55  53 NE8       30.20S                  
GAITHERSBURG*  SUNNY     75  53  46 CALM      30.20S                  
QUANTICO       MOSUNNY   77  57  50 NE10      30.17S                  
COLLEGE PARK*  SUNNY     77  51  41 E7        30.17S                  

...CENTRAL VIRGINIA...
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CULPEPER*      SUNNY     76  53  44 N3        30.19S                  
CHARLOTTESVILL MOSUNNY   74  55  51 N8G17     30.18R                  
WARRENTON*     SUNNY     76  52  41 N12       30.18S                  
ORANGE*        MOSUNNY   73  54  49 N7        30.17S                  
FREDERICKSBRG* MOSUNNY   76  55  48 N9        30.15S                  
LOUISA*        MOSUNNY   74  56  53 NE13      30.18R                  
ASHLAND        PTSUNNY   74  61  63 N5        30.17R                  
RICHMOND       CLOUDY    73  62  68 NE9       30.15R                  

...NORTHEAST/CENTRAL MARYLAND...
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
BWI AIRPORT    MOSUNNY   76  53  44 NE8       30.16S                  
ANNAPOLIS      SUNNY     74  52  46 NW8       30.17S                  
MARTIN AIRPORT MOSUNNY   75  52  43 CALM      30.18                   
WESTMINSTER*   SUNNY     72  48  43 VRB5      30.18S                  
FREDERICK*     SUNNY     75  46  35 VRB5      30.20S                  
FORT MEADE*    SUNNY     75  54  46 N9        30.19S                  

...SOUTHERN MARYLAND...
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
PATUXENT RIVER MOSUNNY   75  60  59 N9        30.15                   
ST MARYS CITY  MOSUNNY   77  62  59 E8        30.12                   

...MARYLAND EASTERN SHORE...
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
SALISBURY      MOSUNNY   78  58  49 NE9       30.15R                  
CAMBRIDGE*     SUNNY     75  61  60 NE9       30.15R                  
OCEAN CITY       N/A     74  59  59 NE9       30.15                   
BAY BRIDGE AP* SUNNY     76  58  53 N9        30.17R                  
EASTON*        SUNNY     75  57  53 NE6       30.16R                  

...SHENANDOAH VALLEY...
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
MARTINSBURG    SUNNY     75  42  30 NE9       30.18F                  
HAGERSTOWN APT SUNNY     74  42  31 NE7G18    30.19S                  
STAUNTON*      SUNNY     71  54  55 N12       30.23R                  
WINCHESTER*    SUNNY     72  43  35 N6        30.19S                  
NEW MARKET*    SUNNY     73  53  49 E7G16     30.20R                  
WAYNESBORO*    MOSUNNY   70  54  57 NE9       30.21R                  

...APPALACHIANS...
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
PETERSBURG WV* SUNNY     71  47  42 VRB3      30.20S                  
CUMBERLAND*    SUNNY     72  45  38 SE5       30.25S                  
OAKLAND*       SUNNY     64  41  42 CALM      30.25S                  
HOT SPRINGS*   CLOUDY    63  57  82 NE7       30.27R                  
ELKINS         PTSUNNY   72  57  59 NW6       30.21S                  
BEDFORD PA*    SUNNY     69  46  42 NW8       30.22S                  
JOHNSTOWN      SUNNY     63  45  51 MISG      30.24S                  
ALTOONA        SUNNY     69  47  45 N6        30.23S                  

...SOUTHERN PENNSYLVANIA/DELAWARE...
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
YORK           SUNNY     73  48  41 VRB7      30.17F                  
WILMINGTON     SUNNY     78  51  38 N10       30.16S                  

...MARINE OBSERVATIONS...
  
STATION/POSITION TIME  TEMP    WIND        PRES
                       AIR SEA DIR/SP/G
                 (UTC) (F)     (DEG/KT/KT) (MB)
THOMAS PT LIGHT  1600   72      10/ 10/ 12 1022.4R
TOLCHESTER       1530   72 81   10/  9/ 11 1021.5F
COVE POINT       1530   73     340/  4/ 14 1021.9R
GOOSES REEF      1548   71 81   10/ 12/ 16   N/A
BALT HARBOR      1530          330/  3/  9   N/A
BALT KEY BRIDGE  1530   73      80/  4/  5 1021.6F
ANNAPOLIS USNA   1530   84 83  350/  7/ 11 1020.9F
ANNAPOLIS CBIBS  1548   71 81   10/ 12/ 14   N/A
WASH DC CHANNEL  1530   76 84  360/  6/ 10 1020.6F
DAHLGREN         1530   77 83  350/  1/  5 1020.2S
LEWISETTA        1530   75 81   50/  7/ 10 1020.6R
SOLOMONS ISLAND  1530   73 83   40/ 10/ 12 1020.7R
PINEY POINT      1530           10/  3/ 11   N/A
POTOMAC BUOY     1548   75 81   50/  6/ 12   N/A
CAMBRIDGE PIER   1530   74 82   20/  5/  7 1021.3R
BISHOPS HEAD     1530   75 79   20/  5/ 10 1020.9R
CHESAPEAKE CITY  1530   74 82  350/  4/  8 1021.1F

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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