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.

Overcast

N/A

Humidity NA
Wind Speed N 8 mph
Barometer 29.90 in
Dewpoint N/A
Visibility 10.00 mi
Last update 1 Aug 11:15 pm CDT
Extended Forecast for

Calmar IA

  • Tonight

    Tonight: Mostly clear, with a low around 61. North wind around 6 mph.

    Low: 61 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 78. Northeast wind 5 to 7 mph.

    High: 78 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 59. Light and variable wind.

    Low: 59 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 79. South wind 3 to 8 mph.

    High: 79 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 62. South wind 6 to 8 mph.

    Low: 62 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 78. South wind 6 to 8 mph becoming west in the afternoon.

    High: 78 °F

    Partly Sunny
    then Chance
    Showers

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 59. Northwest wind 3 to 5 mph. Chance of precipitation is 70%.

    Low: 59 °F

    Showers
    Likely

  • Wednesday

    Wednesday: A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 74. Light north wind. Chance of precipitation is 30%.

    High: 74 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers after 1am. Partly cloudy, with a low around 56. Calm wind.

    Low: 56 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 61. North wind around 6 mph.
Sunday
Mostly sunny, with a high near 78. Northeast wind 5 to 7 mph.
Sunday Night
Mostly clear, with a low around 59. Light and variable wind.
Monday
Sunny, with a high near 79. South wind 3 to 8 mph.
Monday Night
Mostly clear, with a low around 62. South wind 6 to 8 mph.
Tuesday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 78. South wind 6 to 8 mph becoming west in the afternoon.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 59. Northwest wind 3 to 5 mph. Chance of precipitation is 70%.
Wednesday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 74. Light north wind. Chance of precipitation is 30%.
Wednesday Night
A 20 percent chance of showers after 1am. Partly cloudy, with a low around 56. Calm wind.
Thursday
Mostly sunny, with a high near 77. Calm wind becoming south around 5 mph in the afternoon.
Thursday Night
A 20 percent chance of showers. Partly cloudy, with a low around 61. South wind 3 to 5 mph.
Friday
Mostly sunny, with a high near 81. Southwest wind 3 to 6 mph.
Friday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 65. South wind 3 to 5 mph.
Saturday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 82. South wind 5 to 7 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Calmar IA
 43.17°N 91.86°W
Last Update:
10:21 pm CDT Aug 1, 2026
Forecast Valid:
11pm CDT Aug 1, 2026-6pm CDT Aug 8, 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