Dangerous Heat in the Southwest; Severe Thunderstorms and Heavy Rain in the Northeast and Mid-Atlantic

Dangerous heat will persist across the Southwest U.S. through Friday with daytime highs of 110-115°F. Heat across the southern Plains will briefly ease to near-normal by late week. Strong to severe thunderstorms may produce damaging wind, hail, a tornado or two, heavy rain and flash flooding across parts of the Mid-Atlantic and Northeast. Heavy rainfall threat continues across the Gulf Coast. Read More >

Current conditions at

Camp David (KRSP)

Lat: 39.65°NLon: 77.47°WElev: 1841ft.

Mostly Cloudy

79°F

26°C

Humidity 79%
Wind Speed NA
Barometer 30.00 in (1015.1 mb)
Dewpoint 72°F (22°C)
Visibility 9.00 mi
Heat Index82°F (28°C)
Last update 27 Aug 3:54 pm EDT
Extended Forecast for

Thurmont MD

Severe T-storm Watch until August 27, 10:00pm
Click here for hazard details and duration
Severe T-storm Watch
  •  
    Severe T-storm Watch until August 27, 10:00pm

    NOW until 10:00pm Thu

    Severe T-storm Watch

  • This Afternoon

    High: 86 °F

    Severe
    Thunderstorms

  • Tonight

    Tonight: Showers and thunderstorms likely before midnight, then isolated showers between midnight and 2am. Some of the storms could be severe.  Patchy fog after 1am.  Otherwise, mostly cloudy, with a low around 66. Southwest wind 5 to 7 mph becoming calm  in the evening.  Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 66 °F

    Severe
    Thunderstorms
    then Isolated
    Showers and
    Patchy Fog

  • Friday

    Friday: Patchy fog before 9am.  Otherwise, partly sunny, with a high near 83. Light and variable wind.

    High: 83 °F

    Patchy Fog
    then Partly
    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 64. Calm wind.

    Low: 64 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 83. Light and variable wind.

    High: 83 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 67.

    Low: 67 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 70.

    Low: 70 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
Scattered showers and thunderstorms. Some of the storms could be severe. Partly sunny, with a high near 86. South wind around 7 mph. Chance of precipitation is 50%.
Tonight
Showers and thunderstorms likely before midnight, then isolated showers between midnight and 2am. Some of the storms could be severe. Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 66. Southwest wind 5 to 7 mph becoming calm in the evening. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
Patchy fog before 9am. Otherwise, partly sunny, with a high near 83. Light and variable wind.
Friday Night
Partly cloudy, with a low around 64. Calm wind.
Saturday
Sunny, with a high near 83. Light and variable wind.
Saturday Night
Partly cloudy, with a low around 67.
Sunday
Sunny, with a high near 87.
Sunday Night
Partly cloudy, with a low around 70.
Monday
Mostly sunny, with a high near 89.
Monday Night
Partly cloudy, with a low around 72.
Tuesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 90. Chance of precipitation is 20%.
Tuesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 72. Chance of precipitation is 20%.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 89. Chance of precipitation is 30%.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Chance of precipitation is 40%.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 86.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Thurmont MD
 39.62°N 77.42°W (Elev. 600 ft)
3:59 pm EDT Aug 27, 2026
4pm EDT Aug 27, 2026-6pm EDT Sep 3, 2026
 
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