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

54°F

12°C

Humidity 94%
Wind Speed NE 5 mph
Barometer 30.14 in
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Wind Chill53°F (12°C)
Last update 14 Oct 8:35 pm CDT
Extended Forecast for

Dorchester IA

  • Tonight

    Tonight: Cloudy, with a low around 47. Light and variable wind becoming east around 6 mph after midnight.

    Low: 47 °F

    Cloudy

  • Thursday

    Thursday: Showers, mainly after 10am. High near 58. East wind around 6 mph becoming light and variable. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 58 °F

    Showers

  • Thursday Night

    Thursday Night: Showers before midnight, then a slight chance of showers after 5am. Low around 41. Northwest wind 10 to 14 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 41 °F

    Showers then
    Slight Chance
    Showers

  • Friday

    Friday: A 50 percent chance of showers, mainly between 7am and 1pm. Partly sunny, with a high near 54. Breezy, with a northwest wind 17 to 22 mph, with gusts as high as 36 mph. New precipitation amounts of less than a tenth of an inch possible.

    High: 54 °F

    Chance
    Showers and
    Breezy

  • Friday Night

    Friday Night: Widespread frost, mainly after 4am. Otherwise, mostly clear, with a low around 30. North wind 5 to 8 mph becoming calm in the evening.

    Low: 30 °F

    Mostly Clear
    then Frost

  • Saturday

    Saturday: Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 58. Calm wind becoming southwest 5 to 9 mph in the afternoon. Winds could gust as high as 23 mph.

    High: 58 °F

    Frost then
    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 40. South wind around 8 mph, with gusts as high as 20 mph.

    Low: 40 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 65. South wind 9 to 15 mph, with gusts as high as 23 mph.

    High: 65 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 44. South wind 3 to 8 mph. Winds could gust as high as 21 mph.

    Low: 44 °F

    Partly Cloudy

Detailed Forecast

Tonight
Cloudy, with a low around 47. Light and variable wind becoming east around 6 mph after midnight.
Thursday
Showers, mainly after 10am. High near 58. East wind around 6 mph becoming light and variable. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Thursday Night
Showers before midnight, then a slight chance of showers after 5am. Low around 41. Northwest wind 10 to 14 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Friday
A 50 percent chance of showers, mainly between 7am and 1pm. Partly sunny, with a high near 54. Breezy, with a northwest wind 17 to 22 mph, with gusts as high as 36 mph. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
Widespread frost, mainly after 4am. Otherwise, mostly clear, with a low around 30. North wind 5 to 8 mph becoming calm in the evening.
Saturday
Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 58. Calm wind becoming southwest 5 to 9 mph in the afternoon. Winds could gust as high as 23 mph.
Saturday Night
Clear, with a low around 40. South wind around 8 mph, with gusts as high as 20 mph.
Sunday
Sunny, with a high near 65. South wind 9 to 15 mph, with gusts as high as 23 mph.
Sunday Night
Partly cloudy, with a low around 44. South wind 3 to 8 mph. Winds could gust as high as 21 mph.
Monday
Mostly sunny, with a high near 67. Light southwest wind.
Monday Night
Mostly clear, with a low around 43. Calm wind.
Tuesday
Sunny, with a high near 70. Calm wind becoming south 5 to 7 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 49. South wind 3 to 5 mph.
Wednesday
A 20 percent chance of showers. Mostly sunny, with a high near 71. Light south wind increasing to 5 to 9 mph in the morning. Winds could gust as high as 20 mph.
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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:
6:46 pm CDT Oct 14, 2026
Forecast Valid:
8pm CDT Oct 14, 2026-6pm CDT Oct 21, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation