Dangerous Heat in the Central and Eastern U.S.; Severe Thunderstorms in the Plains to the Upper Midwest

A significant and dangerous heat wave will expand from the Central U.S. into the Eastern U.S and linger through much of the work week. Numerous daily record highs and warm lows are likely. Severe thunderstorms are possible from the southern Plains through the Upper Mississippi Valley. Fire weather concerns are expected to persist across the Four Corners region. Read More >

Current conditions at

Frederick Municipal Airport (KFDK)

Lat: 39.42°NLon: 77.37°WElev: 269ft.

Fair

82°F

28°C

Humidity 70%
Wind Speed Calm
Barometer 30.09 in
Dewpoint 72°F (22°C)
Visibility NA
Heat Index86°F (30°C)
Last update 22 Jun 10:50 pm EDT
Extended Forecast for

Frederick MD

Extreme Heat Watch June 24, 11:00am until June 24, 09:00pm
Extreme Heat Warning June 23, 11:00am until June 23, 09:00pm
Click here for hazard details and duration
Extreme Heat Watch
Extreme Heat Warning
  • Tonight

    Tonight: Mostly clear, with a low around 77. Light west wind.

    Low: 77 °F

    Mostly Clear

  • Monday

    Monday: Sunny and hot, with a high near 99. Heat index values as high as 110. Calm wind becoming north around 6 mph in the morning.

    High: 99 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 77. Calm wind.

    Low: 77 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 99. Heat index values as high as 108. Light northwest wind.

    High: 99 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 77. Calm wind.

    Low: 77 °F

    Mostly Clear

  • Wednesday

    Wednesday: A slight chance of showers and thunderstorms after 2pm.  Sunny and hot, with a high near 98. Chance of precipitation is 20%.

    High: 98 °F

    Sunny then
    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers between 8pm and 2am.  Partly cloudy, with a low around 75. Chance of precipitation is 30%.

    Low: 75 °F

    Chance
    Showers

  • Thursday

    Thursday: A chance of showers and thunderstorms after 2pm.  Mostly sunny, with a high near 95. Chance of precipitation is 50%.

    High: 95 °F

    Mostly Sunny
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 2am.  Partly cloudy, with a low around 74. Chance of precipitation is 40%.

    Low: 74 °F

    Chance
    T-storms

Detailed Forecast

Tonight
Mostly clear, with a low around 77. Light west wind.
Monday
Sunny and hot, with a high near 99. Heat index values as high as 110. Calm wind becoming north around 6 mph in the morning.
Monday Night
Mostly clear, with a low around 77. Calm wind.
Tuesday
Sunny and hot, with a high near 99. Heat index values as high as 108. Light northwest wind.
Tuesday Night
Mostly clear, with a low around 77. Calm wind.
Wednesday
A slight chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 98. Chance of precipitation is 20%.
Wednesday Night
A chance of showers between 8pm and 2am. Partly cloudy, with a low around 75. Chance of precipitation is 30%.
Thursday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 95. Chance of precipitation is 50%.
Thursday Night
A chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 74. Chance of precipitation is 40%.
Friday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 93. Chance of precipitation is 50%.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 73. Chance of precipitation is 40%.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 89. Chance of precipitation is 50%.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 72. Chance of precipitation is 40%.
Sunday
A chance of showers and thunderstorms. Mostly sunny, with a high near 90. Chance of precipitation is 40%.
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ABOUT THIS FORECAST

 
Point Forecast:
Frederick MD
 39.44°N 77.42°W (Elev. 348 ft)
10:30 pm EDT Jun 22, 2025
10pm EDT Jun 22, 2025-6pm EDT Jun 29, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

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