Showers and Thunderstorms for the Eastern Third of the Country; Fire Weather Concerns; Flooding Issues for the Great Lakes Region

Showers and thunderstorms will continue along and ahead of a cold front for the eastern third of the country. The rainfall for the Great Lakes region could prolong the ongoing flooding. Much cooler weather will filter in behind this cold front along and east of the Rockies. Where the rain is needed, the Southern High Plains, critical fire weather concerns through this weekend. Read More >

Current conditions at

Frederick Municipal Airport (KFDK)

Lat: 39.42°NLon: 77.37°WElev: 269ft.

Overcast

63°F

17°C

Humidity 87%
Wind Speed E 7 mph
Barometer 29.86 in
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 19 Apr 12:35 am EDT
Extended Forecast for

Knoxville MD

Freeze Watch April 21, 02:00am until April 21, 10:00am
Click here for hazard details and duration
Freeze Watch
  • Overnight

    Overnight: Showers.  Low around 48. Northwest wind 5 to 8 mph.  Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 48 °F

    Showers

  • Sunday

    Sunday: Showers, mainly before 11am.  High near 57. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 31 mph.  Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 57 °F

    Showers and
    Breezy then
    Mostly Sunny

  • Sunday Night

    Sunday Night: Isolated showers after 2am.  Partly cloudy, with a low around 39. West wind around 7 mph.  Chance of precipitation is 20%.

    Low: 39 °F

    Mostly Clear
    then Isolated
    Showers

  • Monday

    Monday: Isolated showers before 2pm.  Mostly sunny, with a high near 52. Northwest wind 10 to 15 mph, with gusts as high as 24 mph.  Chance of precipitation is 20%.

    High: 52 °F

    Isolated
    Showers

  • Monday Night

    Monday Night: Mostly clear, with a low around 30. Northwest wind 3 to 8 mph.

    Low: 30 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 59.

    High: 59 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 45.

    Low: 45 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A chance of showers after 8am.  Partly sunny, with a high near 72. Chance of precipitation is 40%.

    High: 72 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 46.

    Low: 46 °F

    Mostly Clear

Detailed Forecast

Overnight
Showers. Low around 48. Northwest wind 5 to 8 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday
Showers, mainly before 11am. High near 57. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 31 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
Isolated showers after 2am. Partly cloudy, with a low around 39. West wind around 7 mph. Chance of precipitation is 20%.
Monday
Isolated showers before 2pm. Mostly sunny, with a high near 52. Northwest wind 10 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.
Monday Night
Mostly clear, with a low around 30. Northwest wind 3 to 8 mph.
Tuesday
Sunny, with a high near 59.
Tuesday Night
Partly cloudy, with a low around 45.
Wednesday
A chance of showers after 8am. Partly sunny, with a high near 72. Chance of precipitation is 40%.
Wednesday Night
Mostly clear, with a low around 46.
Thursday
Sunny, with a high near 76.
Thursday Night
Mostly clear, with a low around 52.
Friday
Sunny, with a high near 81.
Friday Night
Partly cloudy, with a low around 56.
Saturday
A chance of showers. Partly sunny, with a high near 77. Chance of precipitation is 50%.
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ABOUT THIS FORECAST

 
Point Forecast:
Knoxville MD
 39.33°N 77.67°W (Elev. 249 ft)
10:53 pm EDT Apr 18, 2026
1am EDT Apr 19, 2026-6pm EDT Apr 25, 2026
 
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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