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

21°F

-6°C

Humidity 100%
Wind Speed Calm
Barometer 29.99 in
Dewpoint 21°F (-6°C)
Visibility 2.50 mi
Last update 1 Feb 7:55 pm CST
Extended Forecast for

Saint Lucas IA

  • Tonight

    Tonight: A chance of freezing rain before 9pm, then a chance of flurries between 9pm and 10pm. Mostly cloudy, with a low around 9. Wind chill values as low as zero. Southwest wind 8 to 10 mph becoming northwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 30%.

    Low: 9 °F

    Chance Wintry
    Mix then
    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 20. Wind chill values as low as -2. Northwest wind 6 to 8 mph.

    High: 20 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 9. North wind around 5 mph.

    Low: 9 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Tuesday

    Tuesday: Sunny, with a high near 20. North wind around 6 mph.

    High: 20 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 3. North wind around 5 mph becoming calm in the evening.

    Low: 3 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 21. Calm wind becoming west around 6 mph in the afternoon.

    High: 21 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 13. Northwest wind around 6 mph becoming light and variable.

    Low: 13 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 34. Southwest wind 6 to 13 mph.

    High: 34 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 25. West wind 10 to 14 mph, with gusts as high as 22 mph.

    Low: 25 °F

    Partly Cloudy

Detailed Forecast

Tonight
A chance of freezing rain before 9pm, then a chance of flurries between 9pm and 10pm. Mostly cloudy, with a low around 9. Wind chill values as low as zero. Southwest wind 8 to 10 mph becoming northwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 20. Wind chill values as low as -2. Northwest wind 6 to 8 mph.
Monday Night
A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 9. North wind around 5 mph.
Tuesday
Sunny, with a high near 20. North wind around 6 mph.
Tuesday Night
Partly cloudy, with a low around 3. North wind around 5 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 21. Calm wind becoming west around 6 mph in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 13. Northwest wind around 6 mph becoming light and variable.
Thursday
Partly sunny, with a high near 34. Southwest wind 6 to 13 mph.
Thursday Night
Partly cloudy, with a low around 25. West wind 10 to 14 mph, with gusts as high as 22 mph.
Friday
Partly sunny, with a high near 31. North wind 10 to 14 mph, with gusts as high as 22 mph.
Friday Night
Partly cloudy, with a low around 9. North wind 6 to 9 mph.
Saturday
Mostly sunny, with a high near 26. North wind 6 to 10 mph becoming south in the morning.
Saturday Night
Mostly cloudy, with a low around 17. South wind 7 to 9 mph.
Sunday
Mostly sunny, with a high near 30. Southeast wind 7 to 9 mph becoming west in the afternoon.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Saint Lucas IA
 43.06°N 91.92°W
Last Update:
7:47 pm CST Feb 1, 2026
Forecast Valid:
8pm CST Feb 1, 2026-6pm CST Feb 8, 2026
 
Forecast Discussion
 
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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