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

Severe Weather Across the Center of the Nation; Fire Weather Concerns for Southwest and California; Snow for the Central Rockies

Severe thunderstorms will continue to impact the center of the Nation through today. Very large hail, strong tornadoes, and damaging winds are expected from the Great Lakes into the central/southern Plains; Flash flooding is possible for portions into the mid-Mississippi Valley. Critical fire weather conditions for the Southwest and central valley of California today. Winter hangs on for Rockies. Read More >

Hazardous Weather Conditions

Current conditions at

Camp David (KRSP)

Lat: 39.65°NLon: 77.47°WElev: 1841ft.

A Few Clouds

87°F

31°C

Humidity 67%
Wind Speed S 8 mph
Barometer 30.18 in (1001.4 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index96°F (36°C)
Last update 18 May 4:54 pm EDT
Extended Forecast for

Thurmont MD

  • This Afternoon

    This Afternoon: Isolated showers and thunderstorms. Sunny, with a high near 93. South wind around 5 mph. Chance of precipitation is 20%.

    High: 93 °F

    Isolated
    T-storms

  • Tonight

    Tonight: Partly cloudy, with a low around 70. Light and variable wind.

    Low: 70 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 95. Southwest wind 3 to 7 mph.

    High: 95 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 71. Southwest wind 3 to 5 mph.

    Low: 71 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm after 2pm. High near 91. West wind 5 to 7 mph. Chance of precipitation is 90%.

    High: 91 °F

    Sunny then
    Showers

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm before 8pm, then a chance of showers. Low around 55. Chance of precipitation is 80%.

    Low: 55 °F

    Showers then
    Chance
    Showers

  • Thursday

    Thursday: A chance of showers after 8am. Partly sunny, with a high near 68. Chance of precipitation is 50%.

    High: 68 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers after 2am. Mostly cloudy, with a low around 51. Chance of precipitation is 30%.

    Low: 51 °F

    Mostly Cloudy
    then Chance
    Showers

  • Friday

    Friday: Showers likely, mainly after 2pm. Mostly cloudy, with a high near 66. Chance of precipitation is 60%.

    High: 66 °F

    Showers
    Likely

Detailed Forecast

This Afternoon
Isolated showers and thunderstorms. Sunny, with a high near 93. South wind around 5 mph. Chance of precipitation is 20%.
Tonight
Partly cloudy, with a low around 70. Light and variable wind.
Tuesday
Mostly sunny, with a high near 95. Southwest wind 3 to 7 mph.
Tuesday Night
Partly cloudy, with a low around 71. Southwest wind 3 to 5 mph.
Wednesday
Showers and possibly a thunderstorm after 2pm. High near 91. West wind 5 to 7 mph. Chance of precipitation is 90%.
Wednesday Night
Showers and possibly a thunderstorm before 8pm, then a chance of showers. Low around 55. Chance of precipitation is 80%.
Thursday
A chance of showers after 8am. Partly sunny, with a high near 68. Chance of precipitation is 50%.
Thursday Night
A chance of showers after 2am. Mostly cloudy, with a low around 51. Chance of precipitation is 30%.
Friday
Showers likely, mainly after 2pm. Mostly cloudy, with a high near 66. Chance of precipitation is 60%.
Friday Night
Showers. Low around 51. Chance of precipitation is 80%.
Saturday
Showers. High near 68. Chance of precipitation is 80%.
Saturday Night
Showers likely. Mostly cloudy, with a low around 56. Chance of precipitation is 70%.
Sunday
Showers likely. Mostly cloudy, with a high near 74. Chance of precipitation is 60%.
Sunday Night
Showers likely. Mostly cloudy, with a low around 58. Chance of precipitation is 60%.
Memorial Day
A chance of showers. Mostly cloudy, with a high near 76.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Thurmont MD
 39.64°N 77.39°W (Elev. 433 ft)
Last Update:
4:54 pm EDT May 18, 2026
Forecast Valid:
5pm EDT May 18, 2026-6pm EDT May 25, 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