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Optimist Park, IA Weather Forecast
Optimist Park, IA Weather Forecast Date: 833 AM CDT Mon Oct 12 2026
The area/counties/county of: Marshall, including the city of Marshalltown.or toggle through each period.
Rest of Today... Mostly sunny. Highs in the upper 80s. Southwest winds 10 to 15 mph with gusts up to 25 mph.
Tonight... Mostly clear. Lows in the lower 60s. Southwest winds 10 to 15 mph with gusts up to 25 mph, becoming northwest 5 to 10 mph after midnight.
Tuesday... Sunny. A chance of showers in the afternoon. Highs in the upper 70s. North winds around 5 mph. Chance of rain 30%.
Tuesday Night... Showers likely with a slight chance of thunderstorms in the evening, then a chance of showers after midnight. Lows in the upper 50s. North winds 5 to 10 mph. Chance of rain 70%.
Wednesday... Partly sunny with a slight chance of showers in the morning, then mostly cloudy in the afternoon. Highs in the upper 60s. Northeast winds 5 to 10 mph. Chance of rain 20%.
Wednesday Night... Mostly cloudy. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. Lows in the mid 50s. Chance of rain 50%.
Thursday... A slight chance of thunderstorms. Showers, mainly in the morning. Highs in the mid 60s. Chance of rain 80%.
Thursday Night... Mostly cloudy with a slight chance of showers in the evening, then partly cloudy after midnight. Lows in the mid 40s. Chance of rain 20%.
Friday... Mostly sunny and breezy. Highs in the upper 50s.
Friday Night... Mostly clear. Lows in the mid 30s.
Saturday... Sunny. Highs in the upper 50s.
Saturday Night... Mostly clear. Lows around 40.
POP = Probability of Precipitation
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