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City of Decorah, IADecorah, IA 7-Day Night Weather Forecast
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Decorah, IA Weather Forecast
Decorah, IA Weather Forecast Date: 127 PM CDT Tue Sep 08 2026
The area/counties/county of: Winneshiek, including the city of Decorah.or toggle through each period.
This Afternoon... Mostly cloudy with a chance of showers and thunderstorms. Highs around 80. South winds 5 to 10 mph. Chance of rain 40%.
Tonight... A chance of thunderstorms. Showers. Patchy fog after midnight. Humid with lows in the mid 60s. South winds 5 to 10 mph. Chance of rain 90%.
Wednesday... Patchy fog in the morning. Mostly sunny. Highs around 80. West winds 5 to 10 mph.
Wednesday Night... Cooler. Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 50s. Light winds.
Thursday... Sunny. Highs in the upper 70s. Light winds.
Thursday Night... Clear. Lows in the mid 50s.
Friday... Mostly sunny. Highs in the upper 70s.
Friday Night... Showers likely and a chance of thunderstorms. Lows in the lower 60s. Chance of rain 70%.
Saturday... Partly sunny with a chance of showers. Highs in the mid 70s. Chance of rain 40%.
Saturday Night... Partly cloudy. Lows in the lower 50s.
Sunday... Partly sunny with a chance of showers. Highs in the upper 60s. Chance of rain 50%.
Sunday Night... Mostly cloudy with a chance of showers and thunderstorms. Lows in the mid 50s. Chance of rain 50%.
POP = Probability of Precipitation
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