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Calmar, IA 7-Day Night Weather Forecast
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Calmar, IA Weather Forecast
Calmar, IA Weather Forecast Date: 1157 PM CDT Thu Sep 17 2026
The area/counties/county of: Winneshiek, including the city of Decorah.or toggle through each period.
Overnight... Mostly cloudy. Lows in the upper 50s. Northeast winds around 5 mph.
Friday... Showers in the morning, then showers with a chance of thunderstorms in the afternoon. Highs in the mid 60s. East winds 10 to 15 mph. Chance of rain 100%.
Friday Night... A chance of thunderstorms. Showers. Some thunderstorms May produce heavy rainfall. Locally heavy rainfall possible after midnight. Lows in the upper 50s. East winds 10 to 15 mph. Chance of rain 100%.
Saturday... Cloudy. A chance of showers and thunderstorms in the morning, then showers likely in the afternoon. Some thunderstorms May produce heavy rainfall in the morning. Highs around 70. Northeast winds 5 to 10 mph. Chance of rain 70%.
Saturday Night... Mostly cloudy with a chance of showers. Lows in the upper 50s. Northeast winds 5 to 10 mph. Chance of rain 50%.
Sunday... Mostly cloudy with a chance of showers. Highs in the mid 60s. Chance of rain 50%.
Sunday Night... Cloudy with a chance of showers. Lows in the lower 50s. Chance of rain 50%.
Monday... Mostly cloudy with a 50% chance of showers. Highs in the upper 50s.
Monday Night... Mostly cloudy. Lows in the upper 40s. Highs around 60.
Tuesday... Mostly cloudy. Lows in the upper 40s. Highs around 60.
Tuesday Night... Partly cloudy. Lows in the mid 40s. Highs in the mid 60s.
Wednesday... Partly cloudy. Lows in the mid 40s. Highs in the mid 60s.
Wednesday Night... Partly cloudy. Lows in the lower 50s. Highs in the upper 60s.
POP = Probability of Precipitation
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