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

61°F

16°C

Humidity 94%
Wind Speed Calm
Barometer 30.02 in
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 27 Aug 1:55 am CDT
Extended Forecast for

Postville IA

  • Overnight

    Overnight: Clear, with a low around 59. Light northwest wind.

    Low: 59 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 80. North wind 3 to 5 mph.

    High: 80 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 56. Calm wind.

    Low: 56 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 81. Light and variable wind.

    High: 81 °F

    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 62. Calm wind becoming south around 6 mph after midnight.

    Low: 62 °F

    Mostly Cloudy

  • Saturday

    Saturday: Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 79. South wind 8 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 79 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: A 40 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 67. South wind around 14 mph, with gusts as high as 24 mph.

    Low: 67 °F

    Chance
    T-storms then
    Chance
    Showers

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86. South wind 10 to 14 mph, with gusts as high as 22 mph.

    High: 86 °F

    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: A 40 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 70. South wind 7 to 9 mph.

    Low: 70 °F

    Chance
    T-storms

Detailed Forecast

Overnight
Clear, with a low around 59. Light northwest wind.
Thursday
Sunny, with a high near 80. North wind 3 to 5 mph.
Thursday Night
Mostly clear, with a low around 56. Calm wind.
Friday
Sunny, with a high near 81. Light and variable wind.
Friday Night
Mostly cloudy, with a low around 62. Calm wind becoming south around 6 mph after midnight.
Saturday
Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 79. South wind 8 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A 40 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 67. South wind around 14 mph, with gusts as high as 24 mph.
Sunday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86. South wind 10 to 14 mph, with gusts as high as 22 mph.
Sunday Night
A 40 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 70. South wind 7 to 9 mph.
Monday
A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 86. Southwest wind around 8 mph.
Monday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 67. Southwest wind 3 to 5 mph.
Tuesday
A 30 percent chance of showers. Partly sunny, with a high near 84. Light and variable wind.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 66. Light east wind.
Wednesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 84. Calm wind becoming south around 5 mph in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Postville IA
 43.08°N 91.56°W
Last Update:
1:26 am CDT Aug 27, 2026
Forecast Valid:
2am CDT Aug 27, 2026-6pm CDT Sep 2, 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