Current conditions at
Decorah (KDEH)
Lat: 43.28°NLon: 91.73°WElev: 1158ft.
Fair
N/A
| Humidity | NA |
| Wind Speed | Calm |
| Barometer | 30.21 in |
| Dewpoint | N/A |
| Visibility | 10.00 mi |
| Last update | 12 Jul 3:15 pm CDT |
Extended Forecast for
Castalia IA
Tonight
Low: 64 °F
Clear
Monday
High: 88 °F
Sunny
Monday Night
Low: 66 °F
Mostly Clear
Tuesday
High: 90 °F
Sunny
Tuesday Night
Low: 68 °F
Mostly Clear
Wednesday
High: 91 °F
Sunny
Wednesday Night
Low: 68 °F
Mostly Clear
Thursday
High: 89 °F
Sunny
Thursday Night
Low: 68 °F
Mostly Clear
Detailed Forecast
Tonight
Clear, with a low around 64. Calm wind.
Monday
Sunny, with a high near 88. West wind 3 to 5 mph.
Monday Night
Mostly clear, with a low around 66. Calm wind.
Tuesday
Sunny, with a high near 90. Heat index values as high as 96. Light west wind.
Tuesday Night
Mostly clear, with a low around 68. Light west wind.
Wednesday
Sunny, with a high near 91. Light northwest wind.
Wednesday Night
Mostly clear, with a low around 68. Light northwest wind.
Thursday
Sunny, with a high near 89. Calm wind becoming southwest around 6 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 68. South wind 3 to 6 mph.
Friday
Sunny, with a high near 88. Southwest wind 7 to 10 mph, with gusts as high as 18 mph.
Friday Night
Mostly clear, with a low around 68. Southwest wind around 8 mph.
Saturday
Mostly sunny, with a high near 87. West wind 7 to 10 mph.
Saturday Night
Mostly clear, with a low around 67. Southwest wind around 8 mph.
Sunday
Sunny, with a high near 86. West wind 7 to 10 mph.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Castalia IA
43.1°N 91.68°W
43.1°N 91.68°W
1:26 pm CDT Jul 12, 2026
3pm CDT Jul 12, 2026-6pm CDT Jul 19, 2026
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