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

Areas of Dangerous Heat and Heavy Rain with Possible Flooding into this Weekend

Hot temperatures and high humidity are forecast to continue across much of northeast Texas into the mid-Mississippi Valley into this weekend with heat advisories in effect. Heavy to excessive rainfall occurring at times through Saturday could bring areas of flooding across parts of the central Plains into the upper Midwest/Great Lakes, and Four Corners states. Read More >

Current conditions at

Frederick Municipal Airport (KFDK)

Lat: 39.42°NLon: 77.37°WElev: 269ft.

Rain Fog/Mist

73°F

23°C

Humidity 100%
Wind Speed Calm
Barometer 30.25 in
Dewpoint 73°F (23°C)
Visibility 3.00 mi
Last update 17 Sep 12:47 pm EDT
Extended Forecast for

Libertytown MD

  • This Afternoon

    This Afternoon: Showers and thunderstorms likely before 3pm, then showers likely and possibly a thunderstorm between 3pm and 4pm, then scattered showers and thunderstorms after 4pm. Mostly cloudy, with a high near 86. Southwest wind 3 to 5 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 86 °F

    Showers
    Likely

  • Tonight

    Tonight: Showers and thunderstorms likely before 11pm, then a slight chance of showers between 11pm and midnight. Mostly cloudy, with a low around 69. Calm wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 69 °F

    Showers
    Likely then
    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 81. North wind 6 to 9 mph.

    High: 81 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 58. Northeast wind around 5 mph.

    Low: 58 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 77. Northeast wind around 5 mph becoming light and variable in the morning.

    High: 77 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A slight chance of showers after 2am. Mostly cloudy, with a low around 64. Chance of precipitation is 20%.

    Low: 64 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Sunday

    Sunday: A chance of showers, then showers and possibly a thunderstorm after 2pm. High near 81. Chance of precipitation is 80%.

    High: 81 °F

    Chance
    Showers then
    Showers

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm before 2am, then a slight chance of showers. Low around 61. Chance of precipitation is 80%.

    Low: 61 °F

    Showers

  • Monday

    Monday: A chance of showers, mainly after 8am. Partly sunny, with a high near 71. Chance of precipitation is 30%.

    High: 71 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Showers and thunderstorms likely before 3pm, then showers likely and possibly a thunderstorm between 3pm and 4pm, then scattered showers and thunderstorms after 4pm. Mostly cloudy, with a high near 86. Southwest wind 3 to 5 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and thunderstorms likely before 11pm, then a slight chance of showers between 11pm and midnight. Mostly cloudy, with a low around 69. Calm wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
Mostly sunny, with a high near 81. North wind 6 to 9 mph.
Friday Night
Partly cloudy, with a low around 58. Northeast wind around 5 mph.
Saturday
Partly sunny, with a high near 77. Northeast wind around 5 mph becoming light and variable in the morning.
Saturday Night
A slight chance of showers after 2am. Mostly cloudy, with a low around 64. Chance of precipitation is 20%.
Sunday
A chance of showers, then showers and possibly a thunderstorm after 2pm. High near 81. Chance of precipitation is 80%.
Sunday Night
Showers and possibly a thunderstorm before 2am, then a slight chance of showers. Low around 61. Chance of precipitation is 80%.
Monday
A chance of showers, mainly after 8am. Partly sunny, with a high near 71. Chance of precipitation is 30%.
Monday Night
A chance of showers. Mostly cloudy, with a low around 58. Chance of precipitation is 40%.
Tuesday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 68. Chance of precipitation is 40%.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 56. Chance of precipitation is 40%.
Wednesday
A chance of showers. Mostly cloudy, with a high near 68. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
Libertytown MD
 39.49°N 77.24°W (Elev. 525 ft)
Last Update:
10:53 am EDT Sep 17, 2026
Forecast Valid:
12pm EDT Sep 17, 2026-6pm EDT Sep 23, 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