Heavy Rainfall and Flooding Threats in the Midwest and Ohio Valley; Heat Continues in the Plains and Southeast

An active pattern will continue to bring heavy to excessive rainfall and flash flooding threats to the Midwest and Ohio Valley over the next couple of days. Dangerous heat continues across the central/southern Plains and Southeast U.S. into next week. There is potential for record-tying/breaking temperatures with many areas forecast to see their hottest temperatures so far this year. Read More >

Current conditions at

South St. Paul Municipal-Richard E. Flemi (KSGS)

Lat: 44.86°NLon: 93.03°WElev: 817ft.

Fair

73°F

23°C

Humidity 71%
Wind Speed Calm
Barometer 30.04 in
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 13 Aug 10:35 pm CDT
Extended Forecast for

Cottage Grove MN

  • Tonight

    Tonight: Partly cloudy, with a low around 65. Calm wind becoming east northeast around 5 mph after midnight.

    Low: 65 °F

    Partly Cloudy

  • Friday

    Friday: A 10 percent chance of showers after 5pm.  Partly sunny, with a high near 83. East southeast wind 5 to 15 mph.

    High: 83 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Friday Night

    Friday Night: A 40 percent chance of showers, mainly before 1am.  Cloudy, with a low around 65. East southeast wind around 10 mph.

    Low: 65 °F

    Chance
    Showers

  • Saturday

    Saturday: A 20 percent chance of showers before 1pm.  Mostly cloudy, with a high near 80. East wind 5 to 10 mph becoming west in the afternoon.

    High: 80 °F

    Slight Chance
    Showers

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 65. West northwest wind around 5 mph becoming calm  in the evening.

    Low: 65 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, then gradually becoming sunny, with a high near 81. North northwest wind 5 to 10 mph.

    High: 81 °F

    Decreasing
    Clouds

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 60. North northwest wind 5 to 10 mph becoming light north  in the evening.

    Low: 60 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 82. Calm wind becoming west southwest around 5 mph in the afternoon.

    High: 82 °F

    Sunny

  • Monday Night

    Monday Night: A 40 percent chance of showers and thunderstorms.  Partly cloudy, with a low around 62. Southwest wind around 5 mph.

    Low: 62 °F

    Chance
    Showers

Detailed Forecast

Tonight
Partly cloudy, with a low around 65. Calm wind becoming east northeast around 5 mph after midnight.
Friday
A 10 percent chance of showers after 5pm. Partly sunny, with a high near 83. East southeast wind 5 to 15 mph.
Friday Night
A 40 percent chance of showers, mainly before 1am. Cloudy, with a low around 65. East southeast wind around 10 mph.
Saturday
A 20 percent chance of showers before 1pm. Mostly cloudy, with a high near 80. East wind 5 to 10 mph becoming west in the afternoon.
Saturday Night
Mostly cloudy, with a low around 65. West northwest wind around 5 mph becoming calm in the evening.
Sunday
Mostly cloudy, then gradually becoming sunny, with a high near 81. North northwest wind 5 to 10 mph.
Sunday Night
Mostly clear, with a low around 60. North northwest wind 5 to 10 mph becoming light north in the evening.
Monday
Sunny, with a high near 82. Calm wind becoming west southwest around 5 mph in the afternoon.
Monday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 62. Southwest wind around 5 mph.
Tuesday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 80. Southwest wind 5 to 10 mph. Chance of precipitation is 40%.
Tuesday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 62. Southwest wind 5 to 10 mph. Chance of precipitation is 60%.
Wednesday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 78. West northwest wind 5 to 10 mph.
Wednesday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 59. North wind around 5 mph becoming calm in the evening.
Thursday
Mostly sunny, with a high near 78. Calm wind becoming west southwest around 5 mph in the morning.
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ABOUT THIS FORECAST

 
Point Forecast:
Cottage Grove MN
 44.82°N 92.95°W (Elev. 820 ft)
9:31 pm CDT Aug 13, 2026
10pm CDT Aug 13, 2026-6pm CDT Aug 20, 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