National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Decorah (KDEH)

Lat: 43.28°NLon: 91.73°WElev: 1158ft.

Mostly Cloudy

72°F

22°C

Humidity 88%
Wind Speed Calm
Barometer 29.83 in
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 16 Jun 6:35 pm CDT
Extended Forecast for

Dorchester IA

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly before 2am. Mostly cloudy, with a low around 65. South wind around 6 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 65 °F

    T-storms
    Likely then
    Chance
    T-storms

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms, mainly after 4pm. Partly sunny, with a high near 82. Northwest wind around 6 mph.

    High: 82 °F

    Partly Sunny
    then Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 7pm. Mostly cloudy, with a low around 62. Light and variable wind. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 62 °F

    Showers
    Likely

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 78. Calm wind becoming north 5 to 7 mph in the morning. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 78 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Partly cloudy, with a low around 58. North wind around 6 mph becoming light and variable after midnight. Chance of precipitation is 20%.

    Low: 58 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Juneteenth

    Juneteenth: A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 84. West wind 3 to 8 mph.

    High: 84 °F

    Sunny then
    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: A 40 percent chance of showers and thunderstorms. Mostly clear, with a low around 61. Southwest wind 3 to 6 mph.

    Low: 61 °F

    Chance
    T-storms

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms, mainly before 1pm. Mostly sunny, with a high near 84. South wind 6 to 11 mph, with gusts as high as 21 mph.

    High: 84 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 70. South wind around 10 mph, with gusts as high as 22 mph.

    Low: 70 °F

    Chance
    T-storms

Detailed Forecast

Tonight
Showers and thunderstorms likely, mainly before 2am. Mostly cloudy, with a low around 65. South wind around 6 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday
A 30 percent chance of showers and thunderstorms, mainly after 4pm. Partly sunny, with a high near 82. Northwest wind around 6 mph.
Tuesday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 7pm. Mostly cloudy, with a low around 62. Light and variable wind. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 78. Calm wind becoming north 5 to 7 mph in the morning. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.
Wednesday Night
A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Partly cloudy, with a low around 58. North wind around 6 mph becoming light and variable after midnight. Chance of precipitation is 20%.
Juneteenth
A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 84. West wind 3 to 8 mph.
Thursday Night
A 40 percent chance of showers and thunderstorms. Mostly clear, with a low around 61. Southwest wind 3 to 6 mph.
Friday
A 30 percent chance of showers and thunderstorms, mainly before 1pm. Mostly sunny, with a high near 84. South wind 6 to 11 mph, with gusts as high as 21 mph.
Friday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 70. South wind around 10 mph, with gusts as high as 22 mph.
Saturday
Sunny, with a high near 91. Southwest wind around 10 mph, with gusts as high as 21 mph.
Saturday Night
Mostly clear, with a low around 74. South wind 8 to 10 mph, with gusts as high as 21 mph.
Sunday
Sunny, with a high near 91. South wind 10 to 14 mph, with gusts as high as 26 mph.
Sunday Night
A 30 percent chance of showers and thunderstorms. Mostly clear, with a low around 73. South wind around 11 mph, with gusts as high as 24 mph.
Monday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88. Southwest wind around 10 mph, with gusts as high as 21 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Dorchester IA
 43.45°N 91.52°W
Last Update:
5:29 pm CDT Jun 16, 2025
Forecast Valid:
6pm CDT Jun 16, 2025-6pm CDT Jun 23, 2025
 
Forecast Discussion
 
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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