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.

Fog

39°F

4°C

Humidity 100%
Wind Speed NW 12 G 18 mph
Barometer 29.66 in
Dewpoint 39°F (4°C)
Visibility 0.25 mi
Wind Chill32°F (0°C)
Last update 7 Mar 5:35 am CST
Extended Forecast for

Saint Lucas IA

  • Overnight

    Overnight: A 30 percent chance of showers. Patchy fog. Otherwise, cloudy, with a low around 36. West wind around 10 mph, with gusts as high as 21 mph.

    Low: 36 °F

    Chance
    Showers and
    Patchy Fog

  • Saturday

    Saturday: A 20 percent chance of showers before 7am. Cloudy, then gradually becoming mostly sunny, with a high near 39. Breezy, with a northwest wind 10 to 16 mph, with gusts as high as 25 mph.

    High: 39 °F

    Breezy.
    Slight Chance
    Showers then
    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 33. Southwest wind 8 to 15 mph, with gusts as high as 28 mph.

    Low: 33 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 59. Breezy, with a southwest wind 13 to 16 mph, with gusts as high as 25 mph.

    High: 59 °F

    Sunny then
    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 42. Breezy, with a southwest wind 13 to 16 mph, with gusts as high as 25 mph.

    Low: 42 °F

    Mostly Clear
    and Breezy

  • Monday

    Monday: Sunny, with a high near 63. Southwest wind 7 to 11 mph becoming north in the afternoon.

    High: 63 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 38. Northeast wind 7 to 13 mph.

    Low: 38 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 40 percent chance of showers after noon. Mostly sunny, with a high near 55. East wind 13 to 15 mph.

    High: 55 °F

    Sunny then
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of rain showers before midnight, then a chance of rain and snow showers. Mostly cloudy, with a low around 30. North wind around 15 mph, with gusts as high as 23 mph. Chance of precipitation is 40%.

    Low: 30 °F

    Chance
    Showers then
    Chance
    Rain/Snow

Detailed Forecast

Overnight
A 30 percent chance of showers. Patchy fog. Otherwise, cloudy, with a low around 36. West wind around 10 mph, with gusts as high as 21 mph.
Saturday
A 20 percent chance of showers before 7am. Cloudy, then gradually becoming mostly sunny, with a high near 39. Breezy, with a northwest wind 10 to 16 mph, with gusts as high as 25 mph.
Saturday Night
Mostly clear, with a low around 33. Southwest wind 8 to 15 mph, with gusts as high as 28 mph.
Sunday
Sunny, with a high near 59. Breezy, with a southwest wind 13 to 16 mph, with gusts as high as 25 mph.
Sunday Night
Mostly clear, with a low around 42. Breezy, with a southwest wind 13 to 16 mph, with gusts as high as 25 mph.
Monday
Sunny, with a high near 63. Southwest wind 7 to 11 mph becoming north in the afternoon.
Monday Night
Mostly clear, with a low around 38. Northeast wind 7 to 13 mph.
Tuesday
A 40 percent chance of showers after noon. Mostly sunny, with a high near 55. East wind 13 to 15 mph.
Tuesday Night
A chance of rain showers before midnight, then a chance of rain and snow showers. Mostly cloudy, with a low around 30. North wind around 15 mph, with gusts as high as 23 mph. Chance of precipitation is 40%.
Wednesday
A 30 percent chance of snow showers, mainly before noon. Mostly cloudy, with a high near 43. Breezy, with a northwest wind 14 to 17 mph.
Wednesday Night
Mostly cloudy, with a low around 24. Northwest wind 7 to 13 mph.
Thursday
Partly sunny, with a high near 46. Breezy, with a northwest wind 7 to 16 mph becoming south in the afternoon.
Thursday Night
A chance of rain and snow showers. Mostly cloudy, with a low around 34. Breezy, with a south wind 13 to 17 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
Friday
Mostly cloudy, with a high near 49. Breezy, with a northwest wind 15 to 20 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Saint Lucas IA
 43.07°N 91.95°W
Last Update:
5:46 am CST Mar 7, 2026
Forecast Valid:
5am CST Mar 7, 2026-6pm CDT Mar 13, 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