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Decatur County, IA Weather Forecast
Decatur County, IA Weather Forecast Date: 959 PM CDT Wed Sep 30 2026
The area/counties/county of: Decatur, including the cities of: Lamoni and Leon.or toggle through each period.
Rest of Tonight... Patchy fog late this evening. Showers likely with a chance of thunderstorms. Some thunderstorms May produce heavy rainfall. Near steady temperature in the upper 60s. Southeast winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 70%.
Thursday... Patchy fog in the morning. Showers likely with a chance of thunderstorms in the morning, then a chance of showers in the afternoon. Some thunderstorms May produce heavy rainfall in the morning. Humid. Near steady temperature in the mid 60s. North winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 70%.
Thursday Night... Mostly cloudy with a chance of showers in the evening, then partly cloudy after midnight. Cooler. Less humid with lows around 50. North winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 40%.
Friday... Sunny. Highs in the mid 60s. Northeast winds 5 to 10 mph with gusts up to 20 mph.
Friday Night... Mostly clear. Lows in the upper 40s. East winds around 5 mph.
Saturday... Sunny. Highs in the mid 60s.
Saturday Night... Mostly clear. Lows in the lower 50s.
Sunday... Sunny. Highs in the upper 60s.
Sunday Night... Mostly clear. Lows in the upper 40s.
Monday... Sunny. Highs in the mid 60s.
Monday Night... Mostly clear. Lows around 50.
Tuesday... Mostly sunny. Highs in the upper 60s.
Tuesday Night... Partly cloudy in the evening, then becoming mostly cloudy. Lows in the upper 50s.
POP = Probability of Precipitation
Decatur County Radar Loop
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