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.

Fair

55°F

13°C

Humidity 100%
Wind Speed Calm
Barometer 29.96 in
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 20 Jun 3:15 am CDT
Extended Forecast for

Dorchester IA

  • Overnight

    Overnight: Clear, with a steady temperature around 55. West wind around 6 mph.

    Low: 55 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 77. Northwest wind 6 to 11 mph.

    High: 77 °F

    Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 53. Northwest wind around 6 mph becoming calm in the evening.

    Low: 53 °F

    Increasing
    Clouds

  • Sunday

    Sunday: A 20 percent chance of showers after 3pm. Mostly cloudy, with a high near 73. Calm wind becoming east 5 to 8 mph in the morning.

    High: 73 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Sunday Night

    Sunday Night: A 10 percent chance of showers before 7pm. Mostly cloudy, with a low around 53. Northeast wind 5 to 7 mph becoming calm in the evening.

    Low: 53 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 77. Calm wind becoming northeast around 5 mph in the afternoon.

    High: 77 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 54. Light north wind.

    Low: 54 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 50 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 77. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 77 °F

    Partly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 56. Light southwest wind. Chance of precipitation is 60%.

    Low: 56 °F

    Showers
    Likely

Detailed Forecast

Overnight
Clear, with a steady temperature around 55. West wind around 6 mph.
Saturday
Sunny, with a high near 77. Northwest wind 6 to 11 mph.
Saturday Night
Increasing clouds, with a low around 53. Northwest wind around 6 mph becoming calm in the evening.
Sunday
A 20 percent chance of showers after 3pm. Mostly cloudy, with a high near 73. Calm wind becoming east 5 to 8 mph in the morning.
Sunday Night
A 10 percent chance of showers before 7pm. Mostly cloudy, with a low around 53. Northeast wind 5 to 7 mph becoming calm in the evening.
Monday
Mostly sunny, with a high near 77. Calm wind becoming northeast around 5 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 54. Light north wind.
Tuesday
A 50 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 77. Calm wind becoming southwest around 5 mph in the afternoon.
Tuesday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 56. Light southwest wind. Chance of precipitation is 60%.
Wednesday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 76. West wind 3 to 7 mph.
Wednesday Night
Partly cloudy, with a low around 54. Northwest wind around 5 mph becoming calm in the evening.
Thursday
Mostly sunny, with a high near 77. Light north wind.
Thursday Night
Partly cloudy, with a low around 54. Calm wind.
Friday
Mostly sunny, with a high near 79. Calm wind.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Dorchester IA
 43.47°N 91.52°W
Last Update:
1:26 am CDT Jun 20, 2026
Forecast Valid:
3am CDT Jun 20, 2026-6pm CDT Jun 26, 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