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

79°F

26°C

Humidity 48%
Wind Speed Calm
Barometer 30.10 in
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 28 Aug 3:15 pm CDT
Extended Forecast for

Saint Lucas IA

  • Tonight

    Tonight: A 30 percent chance of showers, mainly after 5am. Mostly cloudy, with a low around 64. Calm wind becoming south 5 to 9 mph in the evening. Winds could gust as high as 18 mph.

    Low: 64 °F

    Mostly Cloudy
    then Chance
    Showers

  • Saturday

    Saturday: Showers, mainly before noon. High near 78. Breezy, with a south wind 11 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 78 °F

    Showers then
    Chance
    Showers and
    Breezy

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 68. South wind 11 to 15 mph, with gusts as high as 24 mph.

    Low: 68 °F

    Partly Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers before 1pm. Partly sunny, with a high near 85. South wind 11 to 14 mph.

    High: 85 °F

    Slight Chance
    Showers

  • Sunday Night

    Sunday Night: A 20 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 72. South wind 8 to 11 mph, with gusts as high as 20 mph.

    Low: 72 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Monday

    Monday: Partly sunny, with a high near 87. South wind 8 to 11 mph.

    High: 87 °F

    Partly Sunny

  • Monday Night

    Monday Night: A 40 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 71. Light south wind.

    Low: 71 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 85. Southwest wind 3 to 5 mph.

    High: 85 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Calm wind becoming south around 6 mph in the evening.

    Low: 68 °F

    Chance
    T-storms

Detailed Forecast

Tonight
A 30 percent chance of showers, mainly after 5am. Mostly cloudy, with a low around 64. Calm wind becoming south 5 to 9 mph in the evening. Winds could gust as high as 18 mph.
Saturday
Showers, mainly before noon. High near 78. Breezy, with a south wind 11 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday Night
Partly cloudy, with a low around 68. South wind 11 to 15 mph, with gusts as high as 24 mph.
Sunday
A 20 percent chance of showers before 1pm. Partly sunny, with a high near 85. South wind 11 to 14 mph.
Sunday Night
A 20 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 72. South wind 8 to 11 mph, with gusts as high as 20 mph.
Monday
Partly sunny, with a high near 87. South wind 8 to 11 mph.
Monday Night
A 40 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 71. Light south wind.
Tuesday
A 30 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 85. Southwest wind 3 to 5 mph.
Tuesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Calm wind becoming south around 6 mph in the evening.
Wednesday
A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 86. Southwest wind 3 to 6 mph.
Wednesday Night
A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 69. Southeast wind 3 to 5 mph.
Thursday
A 20 percent chance of showers. Mostly sunny, with a high near 85. South wind 6 to 8 mph.
Thursday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 68. Southeast wind around 7 mph.
Friday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86. South wind 6 to 8 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:
1:26 pm CDT Aug 28, 2026
Forecast Valid:
3pm CDT Aug 28, 2026-6pm CDT Sep 4, 2026
 
Forecast Discussion
 
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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