Current conditions at
Decorah (KDEH)
Lat: 43.28°NLon: 91.73°WElev: 1158ft.
Fair
57°F
14°C
| Humidity | 44% |
| Wind Speed | S 14 G 26 mph |
| Barometer | 30.26 in |
| Dewpoint | 36°F (2°C) |
| Visibility | 10.00 mi |
| Last update | 18 Oct 11:55 am CDT |
Extended Forecast for
Castalia IA
This Afternoon
High: 62 °F
Sunny and
BreezyTonight
Low: 43 °F
Clear
Monday
High: 64 °F
Mostly Sunny
Monday Night
Low: 43 °F
Mostly Clear
Tuesday
High: 65 °F
Sunny
Tuesday Night
Low: 47 °F
Mostly Clear
Wednesday
High: 69 °F
Sunny
Wednesday Night
Low: 50 °F
Partly Cloudy
Thursday
High: 69 °F
Mostly Sunny
Detailed Forecast
This Afternoon
Sunny, with a high near 62. Breezy, with a south wind 14 to 16 mph, with gusts as high as 25 mph.
Tonight
Clear, with a low around 43. South wind 3 to 7 mph.
Monday
Mostly sunny, with a high near 64. Calm wind.
Monday Night
Mostly clear, with a low around 43. Calm wind.
Tuesday
Sunny, with a high near 65. Calm wind becoming south around 5 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 47. Calm wind.
Wednesday
Sunny, with a high near 69. Calm wind becoming south around 5 mph.
Wednesday Night
Partly cloudy, with a low around 50. Calm wind.
Thursday
Mostly sunny, with a high near 69. Calm wind.
Thursday Night
Mostly clear, with a low around 51. Light southeast wind.
Friday
Mostly sunny, with a high near 68. Southeast wind 5 to 9 mph.
Friday Night
Mostly cloudy, with a low around 53. South wind around 9 mph, with gusts as high as 20 mph.
Saturday
Partly sunny, with a high near 68. South wind around 11 mph, with gusts as high as 21 mph.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Castalia IA
43.1°N 91.65°W
43.1°N 91.65°W
11:46 am CDT Oct 18, 2026
12pm CDT Oct 18, 2026-6pm CDT Oct 24, 2026
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