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

Frederick Municipal Airport (KFDK)

Lat: 39.42°NLon: 77.37°WElev: 269ft.

Fog/Mist

79°F

26°C

Humidity 84%
Wind Speed Calm
Barometer 30.15 in
Dewpoint 73°F (23°C)
Visibility 4.00 mi
Heat Index83°F (28°C)
Last update 16 Aug 7:45 am EDT
Extended Forecast for

Thurmont MD

  • Today

    Today: Isolated showers before 4pm, then isolated showers and thunderstorms between 4pm and 5pm. Patchy fog before 9am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 88. Light southeast wind. Chance of precipitation is 20%.

    High: 88 °F

    Isolated
    Showers and
    Patchy Fog
    then Isolated
    T-storms

  • Tonight

    Tonight: Patchy fog after 4am. Otherwise, mostly clear, with a low around 69. Calm wind.

    Low: 69 °F

    Mostly Clear
    then Patchy
    Fog

  • Sunday

    Sunday: A slight chance of showers and thunderstorms after 2pm. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 91. Light and variable wind. Chance of precipitation is 20%.

    High: 91 °F

    Patchy Fog
    then Slight
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A slight chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Partly cloudy, with a low around 70. Calm wind. Chance of precipitation is 20%.

    Low: 70 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Monday

    Monday: A slight chance of showers after 2pm. Mostly sunny, with a high near 83. Northeast wind around 5 mph. Chance of precipitation is 20%.

    High: 83 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Monday Night

    Monday Night: A slight chance of showers. Mostly cloudy, with a low around 66. Chance of precipitation is 20%.

    Low: 66 °F

    Slight Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers after 2pm. Partly sunny, with a high near 80. Chance of precipitation is 30%.

    High: 80 °F

    Mostly Cloudy
    then Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then a chance of showers after 2am. Mostly cloudy, with a low around 66. Chance of precipitation is 40%.

    Low: 66 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A chance of showers after 2pm. Partly sunny, with a high near 81. Chance of precipitation is 50%.

    High: 81 °F

    Partly Sunny
    then Chance
    Showers

Detailed Forecast

Today
Isolated showers before 4pm, then isolated showers and thunderstorms between 4pm and 5pm. Patchy fog before 9am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 88. Light southeast wind. Chance of precipitation is 20%.
Tonight
Patchy fog after 4am. Otherwise, mostly clear, with a low around 69. Calm wind.
Sunday
A slight chance of showers and thunderstorms after 2pm. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 91. Light and variable wind. Chance of precipitation is 20%.
Sunday Night
A slight chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Partly cloudy, with a low around 70. Calm wind. Chance of precipitation is 20%.
Monday
A slight chance of showers after 2pm. Mostly sunny, with a high near 83. Northeast wind around 5 mph. Chance of precipitation is 20%.
Monday Night
A slight chance of showers. Mostly cloudy, with a low around 66. Chance of precipitation is 20%.
Tuesday
A chance of showers after 2pm. Partly sunny, with a high near 80. Chance of precipitation is 30%.
Tuesday Night
A chance of showers before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then a chance of showers after 2am. Mostly cloudy, with a low around 66. Chance of precipitation is 40%.
Wednesday
A chance of showers after 2pm. Partly sunny, with a high near 81. Chance of precipitation is 50%.
Wednesday Night
A chance of showers before 2am. Mostly cloudy, with a low around 64. Chance of precipitation is 30%.
Thursday
Mostly sunny, with a high near 79.
Thursday Night
Partly cloudy, with a low around 63.
Friday
Mostly sunny, with a high near 80.
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ABOUT THIS FORECAST

 
Point Forecast:
Thurmont MD
 39.62°N 77.42°W (Elev. 600 ft)
Last Update:
7:29 am EDT Aug 16, 2025
Forecast Valid:
8am EDT Aug 16, 2025-6pm EDT Aug 22, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation