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Hazardous Weather Conditions

Current conditions at

Decorah (KDEH)

Lat: 43.28°NLon: 91.73°WElev: 1158ft.

Overcast

57°F

14°C

Humidity 100%
Wind Speed N 3 mph
Barometer 29.71 in
Dewpoint 57°F (14°C)
Visibility 8.00 mi
Last update 15 Apr 8:35 am CDT
Extended Forecast for

Dorchester IA

  • Today

    Today: Showers and thunderstorms likely, mainly after 5pm. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 69. Calm wind. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    High: 69 °F

    Patchy Fog
    then T-storms
    Likely

  • Tonight

    Tonight: A 50 percent chance of showers and thunderstorms, mainly before 4am. Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 52. Calm wind. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 52 °F

    Chance
    T-storms and
    Patchy Fog

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms before 1pm. Patchy fog before 9am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 72. Calm wind becoming south 5 to 7 mph in the afternoon.

    High: 72 °F

    Slight Chance
    T-storms and
    Patchy Fog

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 53. South wind 3 to 6 mph.

    Low: 53 °F

    Mostly Clear

  • Friday

    Friday: Showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 77. South wind 6 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 77 °F

    Partly Sunny
    then Showers
    Likely

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 35. South wind around 10 mph becoming northwest after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 35 °F

    Showers
    Likely

  • Saturday

    Saturday: A 30 percent chance of showers. Partly sunny, with a high near 45. West wind 10 to 14 mph, with gusts as high as 25 mph.

    High: 45 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A 20 percent chance of snow showers before 1am. Partly cloudy, with a low around 29. West wind 8 to 15 mph, with gusts as high as 26 mph.

    Low: 29 °F

    Slight Chance
    Snow Showers

  • Sunday

    Sunday: Sunny, with a high near 50. Northwest wind 8 to 10 mph, with gusts as high as 20 mph.

    High: 50 °F

    Sunny

Detailed Forecast

Today
Showers and thunderstorms likely, mainly after 5pm. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 69. Calm wind. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
A 50 percent chance of showers and thunderstorms, mainly before 4am. Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 52. Calm wind. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
A 20 percent chance of showers and thunderstorms before 1pm. Patchy fog before 9am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 72. Calm wind becoming south 5 to 7 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 53. South wind 3 to 6 mph.
Friday
Showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 77. South wind 6 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 35. South wind around 10 mph becoming northwest after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday
A 30 percent chance of showers. Partly sunny, with a high near 45. West wind 10 to 14 mph, with gusts as high as 25 mph.
Saturday Night
A 20 percent chance of snow showers before 1am. Partly cloudy, with a low around 29. West wind 8 to 15 mph, with gusts as high as 26 mph.
Sunday
Sunny, with a high near 50. Northwest wind 8 to 10 mph, with gusts as high as 20 mph.
Sunday Night
Mostly clear, with a low around 30. Northwest wind around 6 mph becoming light and variable in the evening.
Monday
Sunny, with a high near 61. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Monday Night
Partly cloudy, with a low around 46. South wind around 9 mph, with gusts as high as 20 mph.
Tuesday
Sunny, with a high near 69. West wind 8 to 10 mph, with gusts 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:
5:56 am CDT Apr 15, 2026
Forecast Valid:
8am CDT Apr 15, 2026-6pm CDT Apr 21, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation