


Current conditions at
Decorah (KDEH)
Lat: 43.28°NLon: 91.73°WElev: 1158ft.
Mostly Cloudy
81°F
27°C
Humidity | 84% |
Wind Speed | S 14 mph |
Barometer | 29.88 in |
Dewpoint | 75°F (24°C) |
Visibility | 10.00 mi |
Heat Index | 87°F (31°C) |
Last update | 8 Aug 9:35 pm CDT |
Extended Forecast for
Dorchester IA
Tonight
Low: 72 °F
Mostly Cloudy
then Chance
T-stormsSaturday
High: 83 °F
T-storms
LikelySaturday Night
Low: 67 °F
Showers
LikelySunday
High: 83 °F
Chance
T-stormsSunday Night
Low: 65 °F
Chance
T-stormsMonday
High: 81 °F
Chance
ShowersMonday Night
Low: 63 °F
Slight Chance
T-stormsTuesday
High: 83 °F
Mostly Sunny
then Slight
Chance
T-stormsTuesday Night
Low: 62 °F
Partly Cloudy
Detailed Forecast
Tonight
A 30 percent chance of showers and thunderstorms, mainly after 4am. Mostly cloudy, with a low around 72. South wind 9 to 11 mph, with gusts as high as 23 mph.
Saturday
A chance of showers and thunderstorms before 1pm, then showers likely and possibly a thunderstorm between 1pm and 4pm, then showers and thunderstorms likely after 4pm. Cloudy, with a high near 83. South wind 7 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 7pm. Mostly cloudy, with a low around 67. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 70%. New rainfall amounts between three quarters and one inch possible.
Sunday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 83. Calm wind becoming south around 5 mph in the afternoon. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Calm wind. New rainfall amounts between three quarters and one inch possible.
Monday
A chance of showers and thunderstorms before 7am, then a chance of showers between 7am and 1pm, then a slight chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 81. Light west wind. Chance of precipitation is 30%.
Monday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 63. Calm wind.
Tuesday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 83. Calm wind becoming west around 6 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 62. Light west wind.
Wednesday
Sunny, with a high near 84. Light southwest wind.
Wednesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 63. Calm wind.
Thursday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 84. Calm wind becoming south 5 to 7 mph in the morning.
Thursday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 68. South wind 3 to 6 mph.
Friday
Mostly sunny, with a high near 87. South wind 5 to 7 mph.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Dorchester IA
43.47°N 91.52°W
43.47°N 91.52°W
7:29 pm CDT Aug 8, 2025
9pm CDT Aug 8, 2025-6pm CDT Aug 15, 2025