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

37°F

3°C

Humidity 93%
Wind Speed Vrbl 5 mph
Barometer 29.92 in
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Wind Chill33°F (1°C)
Last update 12 Jan 8:35 pm CST
Extended Forecast for

Dorchester IA

  • Tonight

    Tonight: Mostly cloudy, with a temperature rising to around 37 by 5am. Southwest wind 5 to 11 mph, with gusts as high as 24 mph.

    Low: 34 °F⇑

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 46. Breezy, with a west wind 11 to 16 mph, with gusts as high as 32 mph.

    High: 46 °F

    Partly Sunny
    and Breezy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 19. Blustery, with a northwest wind 11 to 16 mph, with gusts as high as 31 mph.

    Low: 19 °F

    Mostly Cloudy
    then Mostly
    Cloudy and
    Blustery

  • Wednesday

    Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 24. Blustery, with a north wind 13 to 16 mph, with gusts as high as 32 mph.

    High: 24 °F

    Decreasing
    Clouds and
    Blustery

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 8. North wind 5 to 10 mph becoming light northwest after midnight. Winds could gust as high as 20 mph.

    Low: 8 °F

    Mostly Clear

  • Thursday

    Thursday: A 40 percent chance of snow after noon. Partly sunny, with a high near 28. Calm wind becoming south 5 to 8 mph in the afternoon. New snow accumulation of less than a half inch possible.

    High: 28 °F

    Mostly Sunny
    then Chance
    Snow

  • Thursday Night

    Thursday Night: Snow. Low around 22. South wind 6 to 8 mph becoming west after midnight. Chance of precipitation is 80%.

    Low: 22 °F

    Snow

  • Friday

    Friday: Snow likely. Mostly cloudy, with a high near 31. Northwest wind 7 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 70%.

    High: 31 °F

    Snow Likely

  • Friday Night

    Friday Night: A 40 percent chance of snow. Mostly cloudy, with a low around 6. Northwest wind around 11 mph, with gusts as high as 22 mph.

    Low: 6 °F

    Chance Snow

Detailed Forecast

Tonight
Mostly cloudy, with a temperature rising to around 37 by 5am. Southwest wind 5 to 11 mph, with gusts as high as 24 mph.
Tuesday
Partly sunny, with a high near 46. Breezy, with a west wind 11 to 16 mph, with gusts as high as 32 mph.
Tuesday Night
Mostly cloudy, with a low around 19. Blustery, with a northwest wind 11 to 16 mph, with gusts as high as 31 mph.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a high near 24. Blustery, with a north wind 13 to 16 mph, with gusts as high as 32 mph.
Wednesday Night
Mostly clear, with a low around 8. North wind 5 to 10 mph becoming light northwest after midnight. Winds could gust as high as 20 mph.
Thursday
A 40 percent chance of snow after noon. Partly sunny, with a high near 28. Calm wind becoming south 5 to 8 mph in the afternoon. New snow accumulation of less than a half inch possible.
Thursday Night
Snow. Low around 22. South wind 6 to 8 mph becoming west after midnight. Chance of precipitation is 80%.
Friday
Snow likely. Mostly cloudy, with a high near 31. Northwest wind 7 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 70%.
Friday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 6. Northwest wind around 11 mph, with gusts as high as 22 mph.
Saturday
A 20 percent chance of snow. Mostly cloudy, with a high near 12. Northwest wind around 10 mph, with gusts as high as 21 mph.
Saturday Night
Mostly cloudy, with a low around 0. Northwest wind 7 to 9 mph.
Sunday
Partly sunny, with a high near 14. West wind 7 to 9 mph, with gusts as high as 18 mph.
Sunday Night
Mostly cloudy, with a low around 2. West wind around 8 mph.
M.L.King Day
Partly sunny, with a high near 17. Northwest wind 7 to 9 mph, with gusts as high as 18 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Dorchester IA
 43.47°N 91.52°W
Last Update:
8:36 pm CST Jan 12, 2026
Forecast Valid:
8pm CST Jan 12, 2026-6pm CST Jan 19, 2026
 
Forecast Discussion
 
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Additional Resources

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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