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

Dangerous Heat and Possible Flooding

Dangerous heat will persist across the Southwest U.S. through Saturday with daytime highs of 110-115°F. Extreme Heat Warnings remain in effect. Dangerous heat will build across the southern Plains again beginning this weekend. Heavy to excessive rain over the Carolinas Friday may lead to isolated areas of flash flooding. Read More >

Current conditions at

Frederick Municipal Airport (KFDK)

Lat: 39.42°NLon: 77.37°WElev: 269ft.

Fair

66°F

19°C

Humidity 100%
Wind Speed Calm
Barometer 29.99 in
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 28 Aug 4:35 am EDT
Extended Forecast for

Frederick MD

  • Overnight

    Overnight: Isolated showers and thunderstorms before 5am. Mostly cloudy, with a low around 67. Northwest wind around 6 mph. Chance of precipitation is 20%.

    Low: 67 °F

    Isolated
    T-storms

  • Friday

    Friday: Isolated showers and thunderstorms after 11am. Partly sunny, with a high near 84. North wind 6 to 8 mph. Chance of precipitation is 20%.

    High: 84 °F

    Isolated
    T-storms

  • Friday Night

    Friday Night: Partly cloudy, with a low around 62. North wind 6 to 8 mph.

    Low: 62 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 83. North wind 5 to 9 mph.

    High: 83 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 65. East wind around 6 mph.

    Low: 65 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 87.

    High: 87 °F

    Mostly Sunny

  • Sunday Night

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

    Low: 70 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 90.

    High: 90 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 72.

    Low: 72 °F

    Partly Cloudy

Detailed Forecast

Overnight
Isolated showers and thunderstorms before 5am. Mostly cloudy, with a low around 67. Northwest wind around 6 mph. Chance of precipitation is 20%.
Friday
Isolated showers and thunderstorms after 11am. Partly sunny, with a high near 84. North wind 6 to 8 mph. Chance of precipitation is 20%.
Friday Night
Partly cloudy, with a low around 62. North wind 6 to 8 mph.
Saturday
Sunny, with a high near 83. North wind 5 to 9 mph.
Saturday Night
Partly cloudy, with a low around 65. East wind around 6 mph.
Sunday
Mostly sunny, with a high near 87.
Sunday Night
Mostly cloudy, with a low around 70.
Monday
Mostly sunny, with a high near 90.
Monday Night
Partly cloudy, with a low around 72.
Tuesday
Mostly sunny, with a high near 92.
Tuesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 73. Chance of precipitation is 20%.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 91. Chance of precipitation is 30%.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 72. Chance of precipitation is 30%.
Thursday
A chance of showers and thunderstorms. Partly sunny, with a high near 89. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
Frederick MD
 39.44°N 77.42°W (Elev. 348 ft)
Last Update:
4:53 am EDT Aug 28, 2026
Forecast Valid:
4am EDT Aug 28, 2026-6pm EDT Sep 3, 2026
 
Forecast Discussion
 
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Additional Resources

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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