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Sinlaku Continues to Impact the Marianas; Severe Weather from the Central US to the Northeast; Late-Season Snow in the Northwest

Sinlaku continues to bring destructive winds, widespread heavy rain/flooding, and storm surge to the Marianas. Showers and severe thunderstorms are expected from the Northeast to the Mid-Mississippi Valley and to the Central/Southern Plains through Thursday. A front will produce late-season snowfall over the Cascades and Northern Rockies and coastal rain over the Northwest Coast through Thursday. Read More >

Hazardous Weather Conditions

Current conditions at

Camp David (KRSP)

Lat: 39.65°NLon: 77.47°WElev: 1841ft.

Fair

76°F

24°C

Humidity 67%
Wind Speed W 10 G 28 mph
Barometer 30.01 in (1015.4 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 15 Apr 11:54 am EDT
Extended Forecast for

Thurmont MD

  • This Afternoon

    This Afternoon: Sunny, with a high near 88. Southwest wind around 10 mph, with gusts as high as 20 mph.

    High: 88 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 66. Southwest wind 3 to 5 mph.

    Low: 66 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Partly sunny, with a high near 89. Light southwest wind increasing to 5 to 9 mph in the morning. Winds could gust as high as 18 mph.

    High: 89 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A chance of showers. Mostly cloudy, with a low around 65. West wind around 7 mph. Chance of precipitation is 30%.

    Low: 65 °F

    Chance
    Showers

  • Friday

    Friday: A chance of showers. Partly sunny, with a high near 79. West wind 3 to 7 mph. Chance of precipitation is 30%.

    High: 79 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around 60.

    Low: 60 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A chance of showers after 8pm. Mostly cloudy, with a low around 53. Chance of precipitation is 50%.

    Low: 53 °F

    Chance
    Showers

  • Sunday

    Sunday: A chance of showers. Mostly cloudy, with a high near 65. Chance of precipitation is 50%.

    High: 65 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Sunny, with a high near 88. Southwest wind around 10 mph, with gusts as high as 20 mph.
Tonight
Increasing clouds, with a low around 66. Southwest wind 3 to 5 mph.
Thursday
Partly sunny, with a high near 89. Light southwest wind increasing to 5 to 9 mph in the morning. Winds could gust as high as 18 mph.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 65. West wind around 7 mph. Chance of precipitation is 30%.
Friday
A chance of showers. Partly sunny, with a high near 79. West wind 3 to 7 mph. Chance of precipitation is 30%.
Friday Night
Partly cloudy, with a low around 60.
Saturday
Mostly sunny, with a high near 83.
Saturday Night
A chance of showers after 8pm. Mostly cloudy, with a low around 53. Chance of precipitation is 50%.
Sunday
A chance of showers. Mostly cloudy, with a high near 65. Chance of precipitation is 50%.
Sunday Night
A chance of showers before 2am. Partly cloudy, with a low around 39. Chance of precipitation is 30%.
Monday
Sunny, with a high near 53.
Monday Night
Mostly clear, with a low around 34.
Tuesday
Sunny, with a high near 66.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Thurmont MD
 39.62°N 77.42°W (Elev. 600 ft)
Last Update:
10:53 am EDT Apr 15, 2026
Forecast Valid:
12pm EDT Apr 15, 2026-6pm EDT Apr 21, 2026
 
Forecast Discussion
 
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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