Severe Thunderstorms and Heavy Rain in the Mid-Atlantic; Heat Persists Across the South

Scattered severe thunderstorms and excessive rainfall are possible into the night in the Mid Atlantic, and heavy rain will shift to Virginia and the Carolinas on Friday. Severe thunderstorms are also possible in the Central Plains into the Upper MS Valley and the Deep South tonight. Dangerous heat persists across the Southern Plains and Lower MS Valley and heat will expand into the Southwest. Read More >

Current conditions at

Mankato, Mankato Regional Airport (KMKT)

Lat: 44.22°NLon: 93.92°WElev: 1020ft.

Mostly Cloudy

73°F

23°C

Humidity 84%
Wind Speed S 7 mph
Barometer 29.96 in (1014.3 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 20 Aug 7:56 pm CDT
Extended Forecast for

Lake Crystal MN

Severe T-storm Watch until August 21, 12:00am
Click here for hazard details and duration
Severe T-storm Watch
  •  
    Severe T-storm Watch until August 21, 12:00am

    NOW until 12:00am Fri

    Severe T-storm Watch

  • Tonight

    Low: 63 °F

    Severe
    Thunderstorms
    then Slight
    Chance
    Showers

  • Friday

    Friday: Sunny, with a high near 81. West wind 5 to 15 mph becoming north northwest in the afternoon.

    High: 81 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 61. Northwest wind around 5 mph.

    Low: 61 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 80. North northwest wind 5 to 15 mph.

    High: 80 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 54. North northwest wind 5 to 10 mph becoming light northwest  after midnight.

    Low: 54 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 79. Calm wind.

    High: 79 °F

    Sunny

  • Sunday Night

    Sunday Night: A 20 percent chance of showers.  Partly cloudy, with a low around 58. South southeast wind around 5 mph.

    Low: 58 °F

    Slight Chance
    Showers

  • Monday

    Monday: A 20 percent chance of showers before 1pm.  Partly sunny, with a high near 79. South southeast wind 5 to 10 mph.

    High: 79 °F

    Slight Chance
    Showers

Detailed Forecast

Tonight
Showers and thunderstorms before midnight, then a slight chance of showers between midnight and 1am. Some of the storms could be severe. Low around 63. South southwest wind 5 to 10 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
Sunny, with a high near 81. West wind 5 to 15 mph becoming north northwest in the afternoon.
Friday Night
Mostly clear, with a low around 61. Northwest wind around 5 mph.
Saturday
Sunny, with a high near 80. North northwest wind 5 to 15 mph.
Saturday Night
Mostly clear, with a low around 54. North northwest wind 5 to 10 mph becoming light northwest after midnight.
Sunday
Sunny, with a high near 79. Calm wind.
Sunday Night
A 20 percent chance of showers. Partly cloudy, with a low around 58. South southeast wind around 5 mph.
Monday
A 20 percent chance of showers before 1pm. Partly sunny, with a high near 79. South southeast wind 5 to 10 mph.
Monday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 63. South southeast wind around 10 mph.
Tuesday
A slight chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 84. South wind around 10 mph becoming west in the afternoon. Chance of precipitation is 20%.
Tuesday Night
Partly cloudy, with a low around 63. West northwest wind 5 to 10 mph.
Wednesday
Sunny, with a high near 81. Northwest wind 5 to 10 mph.
Wednesday Night
Mostly clear, with a low around 59. North northwest wind 5 to 10 mph.
Thursday
Sunny, with a high near 81. Northwest wind around 5 mph becoming west southwest in the morning.
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ABOUT THIS FORECAST

 
Point Forecast:
Lake Crystal MN
 44.1°N 94.22°W (Elev. 978 ft)
8:06 pm CDT Aug 20, 2026
8pm CDT Aug 20, 2026-6pm CDT Aug 27, 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