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

Decorah (KDEH)

Lat: 43.28°NLon: 91.73°WElev: 1158ft.

Fair

46°F

8°C

Humidity 87%
Wind Speed NE 5 mph
Barometer 30.00 in
Dewpoint 43°F (6°C)
Visibility 9.00 mi
Wind Chill44°F (7°C)
Last update 4 Mar 4:55 pm CST
Extended Forecast for

Decorah IA

  • Tonight

    Tonight: Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 35. Calm wind.

    Low: 35 °F

    Partly Cloudy
    then Patchy
    Fog

  • Thursday

    Thursday: Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 52. Calm wind becoming east around 5 mph.

    High: 52 °F

    Patchy Fog
    then Partly
    Sunny

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm, mainly after 3am. Mostly cloudy, with a low around 42. Calm wind becoming southeast 5 to 7 mph after midnight. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 42 °F

    Mostly Cloudy
    then Showers
    Likely

  • Friday

    Friday: Showers and possibly a thunderstorm. High near 63. South wind 7 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    High: 63 °F

    Showers

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm before midnight, then showers likely. Low around 34. South wind 7 to 11 mph becoming northwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 34 °F

    Showers then
    Showers
    Likely

  • Saturday

    Saturday: Mostly sunny, with a high near 47. Northwest wind 6 to 10 mph, with gusts as high as 20 mph.

    High: 47 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 34. Southwest wind 6 to 11 mph, with gusts as high as 20 mph.

    Low: 34 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 60. Southwest wind 10 to 15 mph, with gusts as high as 23 mph.

    High: 60 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 42. Southwest wind around 9 mph.

    Low: 42 °F

    Mostly Clear

Detailed Forecast

Tonight
Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 35. Calm wind.
Thursday
Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 52. Calm wind becoming east around 5 mph.
Thursday Night
Showers likely and possibly a thunderstorm, mainly after 3am. Mostly cloudy, with a low around 42. Calm wind becoming southeast 5 to 7 mph after midnight. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
Showers and possibly a thunderstorm. High near 63. South wind 7 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Friday Night
Showers and possibly a thunderstorm before midnight, then showers likely. Low around 34. South wind 7 to 11 mph becoming northwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Saturday
Mostly sunny, with a high near 47. Northwest wind 6 to 10 mph, with gusts as high as 20 mph.
Saturday Night
Mostly clear, with a low around 34. Southwest wind 6 to 11 mph, with gusts as high as 20 mph.
Sunday
Sunny, with a high near 60. Southwest wind 10 to 15 mph, with gusts as high as 23 mph.
Sunday Night
Mostly clear, with a low around 42. Southwest wind around 9 mph.
Monday
Sunny, with a high near 68. Southwest wind 8 to 13 mph.
Monday Night
A 20 percent chance of showers. Mostly clear, with a low around 40. West wind around 9 mph becoming east after midnight.
Tuesday
Showers likely. Partly sunny, with a high near 56. East wind 9 to 14 mph becoming southwest in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 60%.
Tuesday Night
A chance of rain and snow showers. Mostly cloudy, with a low around 23. North wind 11 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 50%.
Wednesday
A 30 percent chance of snow showers. Partly sunny, with a high near 34. North wind 11 to 14 mph.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Decorah IA
 43.3°N 91.79°W
Last Update:
2:57 pm CST Mar 4, 2026
Forecast Valid:
5pm CST Mar 4, 2026-6pm CDT Mar 11, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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