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Defiance, IA 7-Day Night Weather Forecast
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Defiance, IA Weather Forecast
Defiance, IA Weather Forecast Date: 743 PM CDT Mon Sep 28 2026
The area/counties/county of: Shelby, including the city of Harlan.or toggle through each period.
Tonight... Mostly cloudy. Lows in the upper 50s. Southeast winds 5 to 10 mph.
Tuesday... Mostly cloudy. Showers likely with a slight chance of thunderstorms in the afternoon. Highs in the lower 70s. South winds around 10 mph with gusts up to 20 mph. Chance of rain 70%.
Tuesday Night... A chance of thunderstorms. Showers with lows in the lower 60s. South winds 5 to 10 mph. Chance of rain near 100%.
Wednesday... Showers with a slight chance of thunderstorms. Humid with highs around 70. South winds 5 to 10 mph. Chance of rain near 100%.
Wednesday Night... Showers with a chance of thunderstorms in the evening, then showers likely with a slight chance of thunderstorms after midnight. Humid with lows around 60. Southeast winds around 5 mph, becoming north after midnight. Chance of rain near 100%.
Thursday... Cloudy with a chance of showers. A slight chance of thunderstorms in the afternoon. Near steady temperature in the lower 60s. Chance of rain 50%.
Thursday Night... Mostly cloudy. Cooler with lows in the upper 40s.
Friday... Mostly sunny. Highs in the lower 60s.
Friday Night... Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 40s.
Saturday... Partly sunny. Highs in the mid 60s.
Saturday Night... Partly cloudy. Lows in the lower 50s.
Sunday... Mostly sunny. Highs in the lower 60s.
Sunday Night... Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 40s.
POP = Probability of Precipitation
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