National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Dangerous Heat Wave Continues; Enhanced Area of Severe Thunderstorms Today

A prolonged, dangerous heat wave will continue today in the Midwest and Mississippi Valley, and persist through the Independence Day weekend across the Ohio Valley, Mid-South, and East Coast. Widespread moderate to extreme HeatRisk is forecast. Scattered wind damage and large hail are expected from severe thunderstorms impacting parts of Nebraska into Iowa today. Read More >

Hazardous Weather Conditions

Current conditions at

Eastern WV Regional Airport/Shepherd Field (KMRB)

Lat: 39.4°NLon: 77.98°WElev: 538ft.

Partly Cloudy

N/A

Humidity NA
Wind Speed W 9 G 17 mph
Barometer 30.05 in
Dewpoint N/A
Visibility 10.00 mi
Last update 3 Jul 2:54 pm EDT
Extended Forecast for

Knoxville MD

Severe T-storm Watch until July 3, 11:00pm
Extreme Heat Warning July 4, 10:00am until July 4, 09:00pm
Extreme Heat Warning July 3, 03:35pm until July 3, 09:00pm
Click here for hazard details and duration
Severe T-storm Watch
Extreme Heat Warning
Extreme Heat Warning
  •  
    Severe T-storm Watch until July 3, 11:00pm
    Extreme Heat Warning July 3, 03:35pm until July 3, 09:00pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • This Afternoon

    High: 99 °F

    Hot

  • Tonight

    Tonight: Partly cloudy, with a low around 76. Northwest wind 3 to 6 mph.

    Low: 76 °F

    Partly Cloudy

  • Independence Day

    Independence Day: A slight chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 97. Heat index values as high as 104. Northwest wind 3 to 6 mph. Chance of precipitation is 20%.

    High: 97 °F

    Sunny then
    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 72. Calm wind becoming northwest around 5 mph. Chance of precipitation is 40%.

    Low: 72 °F

    Chance
    T-storms then
    Chance
    Showers

  • Sunday

    Sunday: Showers and possibly a thunderstorm after 2pm. High near 90. Calm wind becoming southwest around 6 mph in the afternoon. Chance of precipitation is 90%.

    High: 90 °F

    Mostly Sunny
    then Showers

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm before 2am, then a chance of showers. Low around 70. Chance of precipitation is 80%.

    Low: 70 °F

    Showers

  • Monday

    Monday: A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 83. Chance of precipitation is 80%.

    High: 83 °F

    Chance
    Showers then
    T-storms

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm before 2am, then a slight chance of showers. Low around 69. Chance of precipitation is 80%.

    Low: 69 °F

    T-storms then
    Showers
    Likely

Detailed Forecast

This Afternoon
Sunny and hot, with a high near 99. Heat index values as high as 109. West wind around 5 mph.
Tonight
Partly cloudy, with a low around 76. Northwest wind 3 to 6 mph.
Independence Day
A slight chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 97. Heat index values as high as 104. Northwest wind 3 to 6 mph. Chance of precipitation is 20%.
Saturday Night
A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 72. Calm wind becoming northwest around 5 mph. Chance of precipitation is 40%.
Sunday
Showers and possibly a thunderstorm after 2pm. High near 90. Calm wind becoming southwest around 6 mph in the afternoon. Chance of precipitation is 90%.
Sunday Night
Showers and possibly a thunderstorm before 2am, then a chance of showers. Low around 70. Chance of precipitation is 80%.
Monday
A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 83. Chance of precipitation is 80%.
Monday Night
Showers and possibly a thunderstorm before 2am, then a slight chance of showers. Low around 69. Chance of precipitation is 80%.
Tuesday
A slight chance of showers, then a chance of showers and thunderstorms after 8am. Partly sunny, with a high near 84. Chance of precipitation is 40%.
Tuesday Night
A chance of showers and thunderstorms before 2am, then a slight chance of showers. Mostly cloudy, with a low around 69. Chance of precipitation is 40%.
Wednesday
A chance of showers. Partly sunny, with a high near 85. Chance of precipitation is 30%.
Wednesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 69. Chance of precipitation is 20%.
Thursday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 88. Chance of precipitation is 20%.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 70. Chance of precipitation is 30%.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 87.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Knoxville MD
 39.35°N 77.66°W (Elev. 830 ft)
Last Update:
3:06 pm EDT Jul 3, 2026
Forecast Valid:
3pm EDT Jul 3, 2026-6pm EDT Jul 10, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation