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

12°F

-11°C

Humidity 67%
Wind Speed NW 12 G 17 mph
Barometer 30.51 in
Dewpoint 3°F (-16°C)
Visibility 10.00 mi
Wind Chill-2°F (-19°C)
Last update 22 Feb 8:15 pm CST
Extended Forecast for

Postville IA

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 3. Wind chill values as low as -11. North wind 10 to 15 mph, with gusts as high as 24 mph.

    Low: 3 °F

    Decreasing
    Clouds

  • Monday

    Monday: Sunny, with a high near 20. Wind chill values as low as -12. North wind 5 to 9 mph becoming calm in the afternoon. Winds could gust as high as 18 mph.

    High: 20 °F

    Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a low around 8. Wind chill values as low as -2. Light southwest wind becoming south 6 to 11 mph in the evening.

    Low: 8 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: A 20 percent chance of snow before noon. Partly sunny, with a high near 35. South wind 11 to 13 mph becoming west in the afternoon. Winds could gust as high as 22 mph.

    High: 35 °F

    Slight Chance
    Snow then
    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 12. Northwest wind 9 to 13 mph, with gusts as high as 21 mph.

    Low: 12 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 30 percent chance of snow after noon. Mostly sunny, with a high near 24. Northwest wind 5 to 8 mph becoming southeast in the afternoon.

    High: 24 °F

    Sunny then
    Chance Snow

  • Wednesday Night

    Wednesday Night: A 50 percent chance of snow. Mostly cloudy, with a low around 13. East wind around 6 mph becoming north after midnight.

    Low: 13 °F

    Chance Snow

  • Thursday

    Thursday: Mostly sunny, with a high near 30. North wind around 7 mph becoming west in the afternoon.

    High: 30 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 18. Southwest wind 6 to 8 mph.

    Low: 18 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 3. Wind chill values as low as -11. North wind 10 to 15 mph, with gusts as high as 24 mph.
Monday
Sunny, with a high near 20. Wind chill values as low as -12. North wind 5 to 9 mph becoming calm in the afternoon. Winds could gust as high as 18 mph.
Monday Night
Increasing clouds, with a low around 8. Wind chill values as low as -2. Light southwest wind becoming south 6 to 11 mph in the evening.
Tuesday
A 20 percent chance of snow before noon. Partly sunny, with a high near 35. South wind 11 to 13 mph becoming west in the afternoon. Winds could gust as high as 22 mph.
Tuesday Night
Partly cloudy, with a low around 12. Northwest wind 9 to 13 mph, with gusts as high as 21 mph.
Wednesday
A 30 percent chance of snow after noon. Mostly sunny, with a high near 24. Northwest wind 5 to 8 mph becoming southeast in the afternoon.
Wednesday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 13. East wind around 6 mph becoming north after midnight.
Thursday
Mostly sunny, with a high near 30. North wind around 7 mph becoming west in the afternoon.
Thursday Night
Mostly clear, with a low around 18. Southwest wind 6 to 8 mph.
Friday
Mostly sunny, with a high near 41. Southwest wind 8 to 11 mph, with gusts as high as 20 mph.
Friday Night
Partly cloudy, with a low around 22. Southwest wind 8 to 10 mph becoming north after midnight.
Saturday
A 20 percent chance of snow. Mostly sunny, with a high near 34. North wind 10 to 14 mph.
Saturday Night
Mostly clear, with a low around 10. North wind 7 to 10 mph.
Sunday
A 20 percent chance of snow. Mostly sunny, with a high near 27. Northeast wind around 8 mph.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Postville IA
 43.08°N 91.56°W
Last Update:
7:26 pm CST Feb 22, 2026
Forecast Valid:
8pm CST Feb 22, 2026-6pm CST Mar 1, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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