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.

A Few Clouds

75°F

24°C

Humidity 94%
Wind Speed S 5 mph
Barometer 29.85 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Last update 4 Sep 2:15 am CDT
Extended Forecast for

Postville IA

  • Overnight

    Overnight: A 30 percent chance of showers and thunderstorms, mainly after 5am. Partly cloudy, with a low around 71. South wind around 5 mph.

    Low: 71 °F

    Chance
    Showers

  • Friday

    Friday: A chance of showers and thunderstorms before 1pm, then a slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 88. Heat index values as high as 98. Southwest wind 3 to 7 mph. Chance of precipitation is 30%.

    High: 88 °F

    Chance
    Showers then
    Slight Chance
    T-storms

  • Friday Night

    Friday Night: Partly cloudy, with a low around 68. Light and variable wind.

    Low: 68 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 86. Northeast wind 3 to 6 mph.

    High: 86 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of showers after 1am. Partly cloudy, with a low around 65. Light east wind.

    Low: 65 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Sunday

    Sunday: A 30 percent chance of showers before 1pm. Partly sunny, with a high near 81. Light east wind.

    High: 81 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 63. Calm wind becoming southeast around 5 mph after midnight.

    Low: 63 °F

    Mostly Cloudy

  • Labor Day

    Labor Day: A 20 percent chance of showers before 1pm. Partly sunny, with a high near 80. Southeast wind 3 to 8 mph.

    High: 80 °F

    Slight Chance
    Showers

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 65. Southeast wind 8 to 10 mph, with gusts as high as 20 mph.

    Low: 65 °F

    Mostly Cloudy
    then Chance
    Showers

Detailed Forecast

Overnight
A 30 percent chance of showers and thunderstorms, mainly after 5am. Partly cloudy, with a low around 71. South wind around 5 mph.
Friday
A chance of showers and thunderstorms before 1pm, then a slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 88. Heat index values as high as 98. Southwest wind 3 to 7 mph. Chance of precipitation is 30%.
Friday Night
Partly cloudy, with a low around 68. Light and variable wind.
Saturday
Mostly sunny, with a high near 86. Northeast wind 3 to 6 mph.
Saturday Night
A 20 percent chance of showers after 1am. Partly cloudy, with a low around 65. Light east wind.
Sunday
A 30 percent chance of showers before 1pm. Partly sunny, with a high near 81. Light east wind.
Sunday Night
Mostly cloudy, with a low around 63. Calm wind becoming southeast around 5 mph after midnight.
Labor Day
A 20 percent chance of showers before 1pm. Partly sunny, with a high near 80. Southeast wind 3 to 8 mph.
Monday Night
A 30 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 65. Southeast wind 8 to 10 mph, with gusts as high as 20 mph.
Tuesday
A 50 percent chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 85. South wind around 11 mph, with gusts as high as 22 mph.
Tuesday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 68. South wind 7 to 9 mph becoming west after midnight. Chance of precipitation is 60%.
Wednesday
Mostly sunny, with a high near 84. West wind around 6 mph.
Wednesday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 63. West wind 3 to 5 mph.
Thursday
Mostly sunny, with a high near 78. North wind 5 to 9 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Postville IA
 43.08°N 91.56°W
Last Update:
2:16 am CDT Sep 4, 2026
Forecast Valid:
2am CDT Sep 4, 2026-6pm CDT Sep 10, 2026
 
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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