Dangerous Heat and Possible Flooding

Dangerous heat will persist across the Southwest U.S. through Saturday with daytime highs of 110-115°F. Extreme Heat Warnings remain in effect. Dangerous heat will build across the southern Plains again beginning this weekend. Heavy to excessive rain over the Carolinas Friday may lead to isolated areas of flash flooding. Read More >

Current conditions at

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

Lat: 44.86°NLon: 93.03°WElev: 817ft.

Fair

63°F

17°C

Humidity 69%
Wind Speed Calm
Barometer 30.10 in
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Last update 28 Aug 1:15 am CDT
Extended Forecast for

Cottage Grove MN

  • Overnight

    Overnight: Patchy fog after 4am.  Otherwise, mostly clear, with a low around 53. Calm wind.

    Low: 53 °F

    Patchy Fog

  • Friday

    Friday: Increasing clouds, with a high near 85. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 85 °F

    Increasing
    Clouds

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms, mainly after 5am.  Mostly cloudy, with a low around 65. South southeast wind around 5 mph.

    Low: 65 °F

    Mostly Cloudy
    then Chance
    Showers

  • Saturday

    Saturday: Showers and thunderstorms, mainly before noon.  High near 81. South wind 10 to 15 mph.  Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 81 °F

    Showers then
    Chance
    Showers

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 68. Southeast wind 5 to 10 mph.

    Low: 68 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after 1pm.  Partly sunny, with a high near 89. Southeast wind 5 to 10 mph.

    High: 89 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 20 percent chance of showers and thunderstorms after 1am.  Partly cloudy, with a low around 69. South southeast wind 5 to 10 mph.

    Low: 69 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Monday

    Monday: A 20 percent chance of showers before 1pm.  Mostly sunny, with a high near 88. South southwest wind 5 to 10 mph becoming west northwest in the afternoon.

    High: 88 °F

    Slight Chance
    Showers

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms.  Partly cloudy, with a low around 66. North northwest wind around 5 mph becoming calm  after midnight.

    Low: 66 °F

    Slight Chance
    T-storms

Detailed Forecast

Overnight
Patchy fog after 4am. Otherwise, mostly clear, with a low around 53. Calm wind.
Friday
Increasing clouds, with a high near 85. Calm wind becoming southwest around 5 mph in the afternoon.
Friday Night
A 30 percent chance of showers and thunderstorms, mainly after 5am. Mostly cloudy, with a low around 65. South southeast wind around 5 mph.
Saturday
Showers and thunderstorms, mainly before noon. High near 81. South wind 10 to 15 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Mostly cloudy, with a low around 68. Southeast wind 5 to 10 mph.
Sunday
A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 89. Southeast wind 5 to 10 mph.
Sunday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 69. South southeast wind 5 to 10 mph.
Monday
A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 88. South southwest wind 5 to 10 mph becoming west northwest in the afternoon.
Monday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 66. North northwest wind around 5 mph becoming calm after midnight.
Tuesday
Mostly sunny, with a high near 85. Calm wind becoming southwest around 5 mph in the morning.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 65. Southwest wind around 5 mph becoming calm in the evening.
Wednesday
A 20 percent chance of showers. Mostly sunny, with a high near 85. Calm wind becoming south around 5 mph in the afternoon.
Wednesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 66. South southeast wind around 5 mph becoming east in the evening.
Thursday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 85. South southeast wind 5 to 10 mph becoming northwest in the afternoon.
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ABOUT THIS FORECAST

 
Point Forecast:
Cottage Grove MN
 44.82°N 92.92°W (Elev. 846 ft)
10:46 pm CDT Aug 27, 2026
1am CDT Aug 28, 2026-6pm CDT Sep 3, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

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