Watching Hurricane Erin; Heavy Rainfall Threat for Upper Midwest; Heatrisk for Mississippi Valley

Hurricane Erin continues to track westward with its outer bands bringing heavy rainfall and gusty winds for Puerto Rico and US Virgin Islands. Life-threatening surf and rip currents are occurring and will spread across the Atlantic coasts this week. Meanwhile, heavy rainfall and possible flooding are in the forecast for upper Midwest through Monday. Heatrisk continues for the Mississippi Valley. Read More >

Hazardous Weather Conditions

Current conditions at

Frederick Municipal Airport (KFDK)

Lat: 39.42°NLon: 77.37°WElev: 269ft.

Partly Cloudy

97°F

36°C

Humidity 39%
Wind Speed SW 10 G 20 mph
Barometer 29.90 in
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index102°F (39°C)
Last update 17 Aug 2:47 pm EDT
Extended Forecast for

2 Miles SSW Thurmont MD

  • This Afternoon

    This Afternoon: Scattered showers, with thunderstorms also possible after 5pm.  Partly sunny, with a high near 92. West wind around 5 mph.  Chance of precipitation is 30%.

    High: 92 °F

    Scattered
    T-storms

  • Tonight

    Tonight: Scattered showers and thunderstorms before 9pm.  Mostly cloudy, with a low around 68. Light and variable wind becoming north 5 to 8 mph after midnight.  Chance of precipitation is 30%.

    Low: 68 °F

    Scattered
    T-storms then
    Mostly Cloudy

  • Monday

    Monday: A slight chance of showers after 2pm.  Mostly cloudy, with a high near 76. Northeast wind 7 to 9 mph, with gusts as high as 21 mph.  Chance of precipitation is 20%.

    High: 76 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Monday Night

    Monday Night: A chance of showers, mainly after 8pm.  Mostly cloudy, with a low around 64. Northeast wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 30%.

    Low: 64 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers, mainly after 2pm.  Mostly cloudy, with a high near 75. East wind 3 to 5 mph.  Chance of precipitation is 30%.

    High: 75 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers, mainly before 8pm.  Mostly cloudy, with a low around 64. Chance of precipitation is 30%.

    Low: 64 °F

    Chance
    Showers

  • Wednesday

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

    High: 80 °F

    Partly Sunny
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers before 8pm.  Partly cloudy, with a low around 65. Chance of precipitation is 30%.

    Low: 65 °F

    Chance
    Showers then
    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Scattered showers, with thunderstorms also possible after 5pm. Partly sunny, with a high near 92. West wind around 5 mph. Chance of precipitation is 30%.
Tonight
Scattered showers and thunderstorms before 9pm. Mostly cloudy, with a low around 68. Light and variable wind becoming north 5 to 8 mph after midnight. Chance of precipitation is 30%.
Monday
A slight chance of showers after 2pm. Mostly cloudy, with a high near 76. Northeast wind 7 to 9 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.
Monday Night
A chance of showers, mainly after 8pm. Mostly cloudy, with a low around 64. Northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.
Tuesday
A chance of showers, mainly after 2pm. Mostly cloudy, with a high near 75. East wind 3 to 5 mph. Chance of precipitation is 30%.
Tuesday Night
A chance of showers, mainly before 8pm. Mostly cloudy, with a low around 64. Chance of precipitation is 30%.
Wednesday
A chance of showers after 2pm. Partly sunny, with a high near 80. Chance of precipitation is 30%.
Wednesday Night
A chance of showers before 8pm. Partly cloudy, with a low around 65. Chance of precipitation is 30%.
Thursday
Mostly sunny, with a high near 82.
Thursday Night
Partly cloudy, with a low around 63.
Friday
Mostly sunny, with a high near 84.
Friday Night
Partly cloudy, with a low around 65.
Saturday
A chance of showers. Mostly sunny, with a high near 86. Chance of precipitation is 30%.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 68. Chance of precipitation is 30%.
Sunday
A chance of showers. Partly sunny, with a high near 85.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSW Thurmont MD
 39.6°N 77.42°W (Elev. 466 ft)
1:29 pm EDT Aug 17, 2025
3pm EDT Aug 17, 2025-6pm EDT Aug 24, 2025
 
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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