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

48°F

9°C

Humidity 46%
Wind Speed S 7 mph
Barometer 30.13 in
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill45°F (7°C)
Last update 12 Feb 4:35 pm CST
Extended Forecast for

Dorchester IA

  • Tonight

    Tonight: Mostly clear, with a low around 28. Calm wind.

    Low: 28 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 52. Calm wind becoming southwest around 5 mph.

    High: 52 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 27. Calm wind.

    Low: 27 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 53. Calm wind becoming south around 6 mph.

    High: 53 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 30. Calm wind.

    Low: 30 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 54. Light and variable wind.

    High: 54 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 35. Calm wind becoming south around 5 mph after midnight.

    Low: 35 °F

    Mostly Cloudy

  • Washington's Birthday

    Washington's Birthday: Mostly sunny, with a high near 58. Southwest wind 5 to 7 mph.

    High: 58 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 39. Light southeast wind.

    Low: 39 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 28. Calm wind.
Friday
Sunny, with a high near 52. Calm wind becoming southwest around 5 mph.
Friday Night
Partly cloudy, with a low around 27. Calm wind.
Saturday
Mostly sunny, with a high near 53. Calm wind becoming south around 6 mph.
Saturday Night
Mostly clear, with a low around 30. Calm wind.
Sunday
Sunny, with a high near 54. Light and variable wind.
Sunday Night
Mostly cloudy, with a low around 35. Calm wind becoming south around 5 mph after midnight.
Washington's Birthday
Mostly sunny, with a high near 58. Southwest wind 5 to 7 mph.
Monday Night
Partly cloudy, with a low around 39. Light southeast wind.
Tuesday
A 20 percent chance of rain after noon. Partly sunny, with a high near 56. Light southeast wind increasing to 5 to 9 mph in the morning. Winds could gust as high as 20 mph.
Tuesday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 40. Southeast wind around 7 mph becoming southwest after midnight.
Wednesday
A 40 percent chance of rain. Mostly sunny, with a high near 51. West wind 7 to 10 mph, with gusts as high as 21 mph.
Wednesday Night
A slight chance of rain and snow. Mostly cloudy, with a low around 30. North wind around 8 mph. Chance of precipitation is 20%.
Thursday
A slight chance of rain and snow. Mostly sunny, with a high near 40. Northwest wind 7 to 9 mph. Chance of precipitation is 20%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Dorchester IA
 43.47°N 91.52°W
Last Update:
3:47 pm CST Feb 12, 2026
Forecast Valid:
4pm CST Feb 12, 2026-6pm CST Feb 19, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation