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

Hazardous Weather Conditions

Current conditions at

Decorah (KDEH)

Lat: 43.28°NLon: 91.73°WElev: 1158ft.

Fog/Mist

63°F

17°C

Humidity 100%
Wind Speed Calm
Barometer 29.89 in
Dewpoint 63°F (17°C)
Visibility 0.50 mi
Last update 23 Sep 5:15 am CDT
Extended Forecast for

Spring Grove MN

Dense Fog Advisory September 23, 05:29am until September 23, 09:00am
Click here for hazard details and duration
...
  •  
    Dense Fog Advisory September 23, 05:29am until September 23, 09:00am

    NOW until 9:00am Tue

    Dense Fog Advisory

  • Today

    High: 71 °F

    Areas Dense
    Fog then
    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 54. North wind around 6 mph.

    Low: 54 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 69. North wind 5 to 7 mph.

    High: 69 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 51. North wind 3 to 5 mph.

    Low: 51 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 74. Northwest wind 3 to 5 mph.

    High: 74 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 54. Calm wind becoming west around 5 mph after midnight.

    Low: 54 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 78. West wind 3 to 5 mph.

    High: 78 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 56. Calm wind becoming southwest around 6 mph after midnight.

    Low: 56 °F

    Mostly Clear

Detailed Forecast

Today
Areas of dense fog before 9am. Otherwise, partly sunny, with a high near 71. Northeast wind 5 to 7 mph.
Tonight
Mostly cloudy, with a low around 54. North wind around 6 mph.
Wednesday
Partly sunny, with a high near 69. North wind 5 to 7 mph.
Wednesday Night
Partly cloudy, with a low around 51. North wind 3 to 5 mph.
Thursday
Sunny, with a high near 74. Northwest wind 3 to 5 mph.
Thursday Night
Mostly clear, with a low around 54. Calm wind becoming west around 5 mph after midnight.
Friday
Sunny, with a high near 78. West wind 3 to 5 mph.
Friday Night
Mostly clear, with a low around 56. Calm wind becoming southwest around 6 mph after midnight.
Saturday
Sunny, with a high near 74. Northwest wind around 7 mph.
Saturday Night
Mostly clear, with a low around 50. West wind 3 to 5 mph.
Sunday
Sunny, with a high near 75. South wind 3 to 6 mph.
Sunday Night
Mostly clear, with a low around 52. Light and variable wind becoming south around 5 mph in the evening.
Monday
Mostly sunny, with a high near 74. North wind 5 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:
5:13 am CDT Sep 23, 2025
Forecast Valid:
5am CDT Sep 23, 2025-6pm CDT Sep 29, 2025
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation