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.

Partly Cloudy

79°F

26°C

Humidity 48%
Wind Speed N 9 mph
Barometer 30.06 in
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 27 Aug 3:15 pm CDT
Extended Forecast for

Postville IA

  • Tonight

    Tonight: Mostly clear, with a low around 55. Light west wind.

    Low: 55 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 81. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 81 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 63. South wind 3 to 7 mph.

    Low: 63 °F

    Partly Cloudy

  • Saturday

    Saturday: Showers likely, with thunderstorms also possible after 4pm. Mostly cloudy, with a high near 79. South wind 7 to 13 mph, with gusts as high as 21 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 slight chance of showers and thunderstorms. Mostly cloudy, with a low around 67. South wind around 11 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.

    Low: 67 °F

    Slight Chance
    T-storms

  • Sunday

    Sunday: A slight chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 87. South wind 11 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.

    High: 87 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: A 20 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 71. South wind 6 to 9 mph, with gusts as high as 18 mph.

    Low: 71 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Monday

    Monday: A 30 percent chance of showers before 1pm. Partly sunny, with a high near 87. Southwest wind around 8 mph.

    High: 87 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A 40 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 69. Light southwest wind.

    Low: 69 °F

    Mostly Cloudy
    then Chance
    T-storms

Detailed Forecast

Tonight
Mostly clear, with a low around 55. Light west wind.
Friday
Sunny, with a high near 81. Calm wind becoming southwest around 5 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 63. South wind 3 to 7 mph.
Saturday
Showers likely, with thunderstorms also possible after 4pm. Mostly cloudy, with a high near 79. South wind 7 to 13 mph, with gusts as high as 21 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 slight chance of showers and thunderstorms. Mostly cloudy, with a low around 67. South wind around 11 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.
Sunday
A slight chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 87. South wind 11 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.
Sunday Night
A 20 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 71. South wind 6 to 9 mph, with gusts as high as 18 mph.
Monday
A 30 percent chance of showers before 1pm. Partly sunny, with a high near 87. Southwest wind around 8 mph.
Monday Night
A 40 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 69. Light southwest wind.
Tuesday
A 20 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 85. Calm wind becoming southwest around 5 mph in the afternoon.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Calm wind.
Wednesday
A 20 percent chance of showers. Mostly sunny, with a high near 86. Light and variable wind.
Wednesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 67. Light south wind.
Thursday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 85. Southeast wind 3 to 5 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Postville IA
 43.08°N 91.56°W
Last Update:
1:26 pm CDT Aug 27, 2026
Forecast Valid:
3pm CDT Aug 27, 2026-6pm CDT Sep 3, 2026
 
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Additional Resources

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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