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City of Onawa, IowaOnawa, IA 7-Day Night Weather Forecast
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Onawa, IA Weather Forecast
Onawa, IA Weather Forecast Date: 553 PM CDT Thu Oct 08 2026
The area/counties/county of: Monona, including the cities of: Onawa and Mapleton.or toggle through each period.
Tonight... Partly cloudy with a slight chance of showers and thunderstorms. Lows in the mid 50s. Southeast winds 5 to 10 mph. Chance of rain 20%.
Friday... Sunny. Highs in the lower 80s. South winds 5 to 10 mph.
Friday Night... Clear, warmer with lows in the mid 60s. South winds 10 to 15 mph with gusts up to 30 mph.
Saturday... Sunny, breezy with highs in the mid 80s. South winds 15 to 25 mph with gusts up to 40 mph.
Saturday Night... Clear. Lows in the mid 60s. South winds 15 to 20 mph. Gusts up to 35 mph in the evening.
Sunday... Sunny. Highs in the lower 80s.
Sunday Night... Partly cloudy. Lows in the lower 60s.
Columbus Day... Mostly sunny. Highs in the mid 70s.
Monday Night... Mostly clear. Lows in the lower 50s.
Tuesday... Mostly sunny with a 20% chance of showers. Not as warm with highs in the mid 60s.
Tuesday Night... Partly cloudy with a slight chance of showers in the evening, then mostly cloudy with a chance of showers after midnight. Lows in the lower 50s. Chance of rain 40%.
Wednesday... Mostly cloudy with a 50% chance of showers. Highs in the upper 60s.
Wednesday Night... A slight chance of thunderstorms in the evening. Partly cloudy with a chance of showers. Lows in the mid 50s. Chance of rain 50%.
POP = Probability of Precipitation
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