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

Excessive Rainfall and Tropical Storm in the South; Severe Thunderstorms in the Midwest

Excessive rainfall may produce considerable, potentially life-threatening, flooding across the lower Mississippi River Valley and central Great Lakes region through tonight. Tropical Storm Arthur will move northeastward along the Texas coast today and then move inland over southwestern Louisiana by tonight. An outbreak of severe thunderstorms is expected across portions of Illinois and Indiana. Read More >

Current conditions at

Frederick Municipal Airport (KFDK)

Lat: 39.42°NLon: 77.37°WElev: 269ft.

Fair

81°F

27°C

Humidity 51%
Wind Speed S 7 mph
Barometer 29.75 in
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 17 Jun 7:47 pm EDT
Extended Forecast for

Frederick Municipal Airport MD

  • Tonight

    Tonight: Increasing clouds, with a low around 70. Calm wind becoming south 5 to 7 mph after midnight.

    Low: 70 °F

    Increasing
    Clouds

  • Thursday

    Thursday: A chance of showers and thunderstorms, mainly between 1pm and 2pm. Partly sunny, with a high near 92. Breezy, with a west wind 15 to 22 mph, with gusts as high as 39 mph. Chance of precipitation is 30%.

    High: 92 °F

    Breezy.
    Slight Chance
    T-storms then
    Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 66. West wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 20 mph.

    Low: 66 °F

    Mostly Cloudy

  • Juneteenth

    Juneteenth: Mostly cloudy, then gradually becoming sunny, with a high near 85. West wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 85 °F

    Decreasing
    Clouds

  • Friday Night

    Friday Night: Mostly clear, with a low around 62. Northwest wind 5 to 7 mph becoming calm in the evening.

    Low: 62 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 86.

    High: 86 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 64. Chance of precipitation is 50%.

    Low: 64 °F

    Chance
    Showers

Detailed Forecast

Tonight
Increasing clouds, with a low around 70. Calm wind becoming south 5 to 7 mph after midnight.
Thursday
A chance of showers and thunderstorms, mainly between 1pm and 2pm. Partly sunny, with a high near 92. Breezy, with a west wind 15 to 22 mph, with gusts as high as 39 mph. Chance of precipitation is 30%.
Thursday Night
Mostly cloudy, with a low around 66. West wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 20 mph.
Juneteenth
Mostly cloudy, then gradually becoming sunny, with a high near 85. West wind 5 to 10 mph, with gusts as high as 20 mph.
Friday Night
Mostly clear, with a low around 62. Northwest wind 5 to 7 mph becoming calm in the evening.
Saturday
Sunny, with a high near 84.
Saturday Night
Mostly clear, with a low around 61.
Sunday
Mostly sunny, with a high near 86.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 64. Chance of precipitation is 50%.
Monday
Showers, with thunderstorms also possible after 2pm. High near 85. Chance of precipitation is 80%.
Monday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 63. Chance of precipitation is 60%.
Tuesday
Sunny, with a high near 84.
Tuesday Night
Mostly clear, with a low around 62.
Wednesday
Mostly sunny, with a high near 85.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Frederick Municipal Airport MD
 39.4°N 77.4°W (Elev. 299 ft)
Last Update:
7:53 pm EDT Jun 17, 2026
Forecast Valid:
8pm EDT Jun 17, 2026-6pm EDT Jun 24, 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