Hazardous Weather Conditions
Current conditions at
Decorah (KDEH)
Lat: 43.28°NLon: 91.73°WElev: 1158ft.
Mostly Cloudy
36°F
2°C
| Humidity | 75% |
| Wind Speed | Vrbl 5 mph |
| Barometer | 30.05 in |
| Dewpoint | 28°F (-2°C) |
| Visibility | 10.00 mi |
| Wind Chill | 32°F (0°C) |
| Last update | 19 Apr 6:35 am CDT |
Extended Forecast for
Calmar IA
Today
High: 46 °F
Chance
Rain/Snow
then SunnyTonight

Low: 26 °F
Clear then
FrostMonday

High: 54 °F
Frost then
Mostly SunnyMonday Night

Low: 44 °F
Partly Cloudy
Tuesday

High: 73 °F
Sunny
Tuesday Night

Low: 44 °F
Clear
Wednesday

High: 76 °F
Sunny
Wednesday Night

Low: 58 °F
Partly Cloudy
Thursday
High: 73 °F
Breezy.
Partly Sunny
then Chance
Showers
Detailed Forecast
Today
A chance of snow showers, possibly mixing with rain after 9am, then gradually ending. Mostly cloudy, then gradually becoming sunny, with a high near 46. Northwest wind 7 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.
Tonight
Widespread frost after 5am. Otherwise, clear, with a low around 26. Northwest wind 5 to 10 mph becoming light and variable in the evening.
Monday
Widespread frost before 7am. Otherwise, sunny, with a high near 54. Light south wind increasing to 9 to 14 mph in the morning.
Monday Night
Partly cloudy, with a low around 44. South wind 10 to 14 mph, with gusts as high as 22 mph.
Tuesday
Sunny, with a high near 73. Southwest wind 6 to 8 mph becoming northwest in the afternoon.
Tuesday Night
Clear, with a low around 44. North wind around 5 mph becoming light and variable.
Wednesday
Sunny, with a high near 76. South wind 6 to 13 mph.
Wednesday Night
Partly cloudy, with a low around 58. South wind 13 to 15 mph, with gusts as high as 23 mph.
Thursday
A 40 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 73. Breezy, with a south wind 15 to 22 mph, with gusts as high as 32 mph.
Thursday Night
Showers and possibly a thunderstorm before 1am, then a chance of showers. Low around 48. Breezy, with a south wind 14 to 21 mph, with gusts as high as 30 mph. Chance of precipitation is 80%.
Friday
A 40 percent chance of showers. Mostly cloudy, with a high near 59. Northwest wind 13 to 15 mph, with gusts as high as 23 mph.
Friday Night
A 30 percent chance of showers. Partly cloudy, with a low around 39. Northwest wind 10 to 14 mph.
Saturday
Mostly sunny, with a high near 58. Northwest wind 10 to 14 mph.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Calmar IA
43.17°N 91.89°W
43.17°N 91.89°W
5:21 am CDT Apr 19, 2026
6am CDT Apr 19, 2026-6pm CDT Apr 25, 2026



