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.

Mostly Cloudy

82°F

28°C

Humidity 70%
Wind Speed Calm
Barometer 29.96 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 1 Sep 2:35 pm CDT
Extended Forecast for

3 Miles NE West Union IA

  • This Afternoon

    This Afternoon: A chance of showers, with thunderstorms also possible after 4pm. Partly sunny, with a high near 88. Calm wind becoming southwest around 5 mph. Chance of precipitation is 40%.

    High: 88 °F

    Chance
    Showers

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 70. Calm wind becoming west around 5 mph after midnight.

    Low: 70 °F

    Decreasing
    Clouds

  • Wednesday

    Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 88. South wind 5 to 9 mph becoming southwest in the afternoon.

    High: 88 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers and thunderstorms, mainly after 2am. Partly cloudy, with a low around 70. Light and variable wind. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 70 °F

    Mostly Clear
    then Chance
    Showers

  • Thursday

    Thursday: Showers likely and possibly a thunderstorm before 1pm. Mostly sunny, with a high near 86. Light and variable wind becoming south 5 to 7 mph in the morning. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 86 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: A 50 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 70. South wind around 6 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 70 °F

    Mostly Clear
    then Chance
    T-storms

  • Friday

    Friday: A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm. Mostly sunny, with a high near 86. South wind around 6 mph. Chance of precipitation is 30%.

    High: 86 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 68. Light southeast wind.

    Low: 68 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Saturday

    Saturday: A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 85. Calm wind becoming southeast around 5 mph.

    High: 85 °F

    Slight Chance
    Showers

Detailed Forecast

This Afternoon
A chance of showers, with thunderstorms also possible after 4pm. Partly sunny, with a high near 88. Calm wind becoming southwest around 5 mph. Chance of precipitation is 40%.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 70. Calm wind becoming west around 5 mph after midnight.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a high near 88. South wind 5 to 9 mph becoming southwest in the afternoon.
Wednesday Night
A 40 percent chance of showers and thunderstorms, mainly after 2am. Partly cloudy, with a low around 70. Light and variable wind. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
Showers likely and possibly a thunderstorm before 1pm. Mostly sunny, with a high near 86. Light and variable wind becoming south 5 to 7 mph in the morning. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A 50 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 70. South wind around 6 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm. Mostly sunny, with a high near 86. South wind around 6 mph. Chance of precipitation is 30%.
Friday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 68. Light southeast wind.
Saturday
A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 85. Calm wind becoming southeast around 5 mph.
Saturday Night
A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 67. Calm wind becoming southeast around 5 mph after midnight.
Sunday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 82. Light and variable wind becoming southeast around 5 mph in the morning.
Sunday Night
A 20 percent chance of showers. Partly cloudy, with a low around 64. East wind 3 to 6 mph.
Labor Day
A 20 percent chance of showers. Partly sunny, with a high near 78. East wind 5 to 7 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NE West Union IA
 43°N 91.77°W
Last Update:
2:01 pm CDT Sep 1, 2026
Forecast Valid:
2pm CDT Sep 1, 2026-6pm CDT Sep 7, 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