National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Dangerous Heat and Heavy Rainfall into the Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend. Heat Advisories remain in effect. Heavy to excessive rainfall occurring at times through the weekend could bring areas of flooding to parts of the northern Rockies, upper Midwest, central Great Lakes, and southern New England. Read More >

Hazardous Weather Conditions

Current conditions at

Decorah (KDEH)

Lat: 43.28°NLon: 91.73°WElev: 1158ft.

Overcast

64°F

18°C

Humidity 68%
Wind Speed NE 12 mph
Barometer 30.06 in
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 20 Sep 1:15 pm CDT
Extended Forecast for

Spring Grove MN

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 66. Northeast wind 10 to 13 mph, with gusts as high as 21 mph.

    High: 66 °F

    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a low around 50. Northeast wind around 9 mph, with gusts as high as 18 mph.

    Low: 50 °F

    Mostly Cloudy

  • Monday

    Monday: A 20 percent chance of showers between 2pm and 4pm. Mostly cloudy, with a high near 59. East wind 7 to 9 mph.

    High: 59 °F

    Slight Chance
    Showers

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 45. East wind around 6 mph.

    Low: 45 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 61. East wind 5 to 7 mph.

    High: 61 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 42. Light east wind.

    Low: 42 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 63. Calm wind becoming east around 5 mph in the morning.

    High: 63 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 45. Light east wind.

    Low: 45 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 64. Light southeast wind.

    High: 64 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 66. Northeast wind 10 to 13 mph, with gusts as high as 21 mph.
Tonight
Mostly cloudy, with a low around 50. Northeast wind around 9 mph, with gusts as high as 18 mph.
Monday
A 20 percent chance of showers between 2pm and 4pm. Mostly cloudy, with a high near 59. East wind 7 to 9 mph.
Monday Night
Mostly cloudy, with a low around 45. East wind around 6 mph.
Tuesday
Mostly sunny, with a high near 61. East wind 5 to 7 mph.
Tuesday Night
Mostly clear, with a low around 42. Light east wind.
Wednesday
Sunny, with a high near 63. Calm wind becoming east around 5 mph in the morning.
Wednesday Night
Partly cloudy, with a low around 45. Light east wind.
Thursday
Partly sunny, with a high near 64. Light southeast wind.
Thursday Night
Mostly cloudy, with a low around 49. Calm wind.
Friday
Mostly cloudy, with a high near 66. Calm wind becoming southeast around 5 mph.
Friday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 51. Calm wind.
Saturday
A 20 percent chance of showers. Mostly cloudy, with a high near 67. Southeast wind 3 to 7 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Spring Grove MN
 43.56°N 91.63°W
Last Update:
1:26 pm CDT Sep 20, 2026
Forecast Valid:
1pm CDT Sep 20, 2026-6pm CDT Sep 26, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation