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Heavy Rain and Potential for Flash Flooding

Strong to severe thunderstorms are forecast to develop along a frontal system stretching from portions of the Mississippi Valley into the Ohio Valley. These storms may produce heavy rain and flash flooding. The threat shifts east on Friday. Moonsoon moisture will continue to produce heavy rain with the possibility of localized flash flooding in the Four Corners area. Read More >

Current conditions at

Frederick Municipal Airport (KFDK)

Lat: 39.42°NLon: 77.37°WElev: 269ft.

Clear

84°F

29°C

Humidity 66%
Wind Speed Calm
Barometer 29.89 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index89°F (32°C)
Last update 27 Jul 7:47 pm EDT
Extended Forecast for

Thurmont MD

Flash Flood Watch July 28, 02:00pm until July 29, 02:00pm
Click here for hazard details and duration
Flash Flood Watch
  • Tonight

    Tonight: Scattered showers and thunderstorms.  Mostly cloudy, with a low around 70. Light west wind.  Chance of precipitation is 40%.

    Chance
    Showers

    Low: 70 °F

  • Friday

    Friday: A chance of showers, then showers and possibly a thunderstorm after 9am. Some of the storms could produce heavy rainfall.  High near 78. Light and variable wind becoming northeast around 6 mph in the afternoon.  Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

    Heavy Rain

    High: 78 °F

  • Friday
    Night

    Friday Night: Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall.  Low around 64. Northeast wind 6 to 9 mph.  Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.

    Heavy Rain

    Low: 64 °F

  • Saturday

    Saturday: Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall.  High near 70. North wind 10 to 13 mph, with gusts as high as 21 mph.  Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

    Heavy Rain

    High: 70 °F

  • Saturday
    Night

    Saturday Night: Showers likely, mainly before 9pm.  Mostly cloudy, with a low around 60. North wind 8 to 11 mph.  Chance of precipitation is 60%.

    Showers
    Likely then
    Chance
    Showers

    Low: 60 °F

  • Sunday

    Sunday: A slight chance of showers after 9am.  Partly sunny, with a high near 75. Chance of precipitation is 20%.

    Slight Chance
    Showers

    High: 75 °F

  • Sunday
    Night

    Sunday Night: Partly cloudy, with a low around 61.

    Partly Cloudy

    Low: 61 °F

  • Monday

    Monday: Mostly sunny, with a high near 79.

    Mostly Sunny

    High: 79 °F

  • Monday
    Night

    Monday Night: Partly cloudy, with a low around 63.

    Partly Cloudy

    Low: 63 °F

Detailed Forecast

Tonight
Scattered showers and thunderstorms. Mostly cloudy, with a low around 70. Light west wind. Chance of precipitation is 40%.
Friday
A chance of showers, then showers and possibly a thunderstorm after 9am. Some of the storms could produce heavy rainfall. High near 78. Light and variable wind becoming northeast around 6 mph in the afternoon. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Friday Night
Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 64. Northeast wind 6 to 9 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Saturday
Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 70. North wind 10 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Saturday Night
Showers likely, mainly before 9pm. Mostly cloudy, with a low around 60. North wind 8 to 11 mph. Chance of precipitation is 60%.
Sunday
A slight chance of showers after 9am. Partly sunny, with a high near 75. Chance of precipitation is 20%.
Sunday Night
Partly cloudy, with a low around 61.
Monday
Mostly sunny, with a high near 79.
Monday Night
Partly cloudy, with a low around 63.
Tuesday
Sunny, with a high near 84.
Tuesday Night
Mostly clear, with a low around 66.
Wednesday
Mostly sunny, with a high near 85.
Wednesday Night
Partly cloudy, with a low around 67.
Thursday
Mostly sunny, with a high near 86.
Click Map For Forecast
Point Forecast:
Thurmont MD
 39.62°N 77.42°W (Elev. 600 ft)
7:28 pm EDT Jul 27, 2017
9pm EDT Jul 27, 2017-6pm EDT Aug 3, 2017
 
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