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.

Mostly Cloudy

66°F

19°C

Humidity 94%
Wind Speed Calm
Barometer 29.94 in
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 19 Aug 1:15 am CDT
Extended Forecast for

4 Miles NW Dorchester IA

  • Overnight

    Overnight: Patchy fog after 5am. Otherwise, partly cloudy, with a low around 58. Calm wind.

    Low: 58 °F

    Patchy Fog

  • Wednesday

    Wednesday: Patchy fog before 8am. Otherwise, mostly sunny, with a high near 78. Calm wind.

    High: 78 °F

    Patchy Fog
    then Mostly
    Sunny

  • Wednesday Night

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

    Low: 56 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 81. Calm wind becoming southwest 5 to 8 mph in the afternoon.

    High: 81 °F

    Sunny

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 63. South wind around 6 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 63 °F

    Chance
    T-storms then
    Showers
    Likely

  • Friday

    Friday: A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 81. Southwest wind 5 to 7 mph becoming northwest in the afternoon.

    High: 81 °F

    Slight Chance
    Showers

  • Friday Night

    Friday Night: Mostly clear, with a low around 60. Northwest wind around 5 mph becoming calm in the evening.

    Low: 60 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 79. Light northwest wind increasing to 5 to 9 mph in the morning. Winds could gust as high as 18 mph.

    High: 79 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 56. Northwest wind around 5 mph becoming calm in the evening.

    Low: 56 °F

    Mostly Clear

Detailed Forecast

Overnight
Patchy fog after 5am. Otherwise, partly cloudy, with a low around 58. Calm wind.
Wednesday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 78. Calm wind.
Wednesday Night
Mostly clear, with a low around 56. Calm wind.
Thursday
Sunny, with a high near 81. Calm wind becoming southwest 5 to 8 mph in the afternoon.
Thursday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 63. South wind around 6 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 81. Southwest wind 5 to 7 mph becoming northwest in the afternoon.
Friday Night
Mostly clear, with a low around 60. Northwest wind around 5 mph becoming calm in the evening.
Saturday
Sunny, with a high near 79. Light northwest wind increasing to 5 to 9 mph in the morning. Winds could gust as high as 18 mph.
Saturday Night
Mostly clear, with a low around 56. Northwest wind around 5 mph becoming calm in the evening.
Sunday
Mostly sunny, with a high near 77. Light northwest wind.
Sunday Night
Partly cloudy, with a low around 56. Calm wind.
Monday
Mostly sunny, with a high near 78. Light south wind.
Monday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 60. Light south wind.
Tuesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 82. Calm wind becoming west around 6 mph in the morning.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NW Dorchester IA
 43.49°N 91.58°W
Last Update:
1:26 am CDT Aug 19, 2026
Forecast Valid:
1am CDT Aug 19, 2026-6pm CDT Aug 25, 2026
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation