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Onawa Muni, IA Weather Forecast
Onawa Muni, IA Weather Forecast Date: 123 PM CDT Sat Aug 15 2026
The area/counties/county of: Monona, including the cities of: Onawa and Mapleton.or toggle through each period.
This Afternoon... Mostly cloudy with a chance of showers and thunderstorms. Near steady temperature in the upper 70s. Northwest winds around 5 mph. Chance of rain 50%.
Tonight... Mostly cloudy with a chance of showers and thunderstorms in the evening, then partly cloudy with a slight chance of showers and thunderstorms after midnight. Humid with lows in the mid 60s. Northwest winds around 5 mph. Chance of rain 40%.
Sunday... Partly sunny with a slight chance of showers and thunderstorms in the morning, then sunny in the afternoon. Humid with highs around 80. North winds 5 to 10 mph. Chance of rain 20%.
Sunday Night... Mostly clear. Lows in the upper 50s. Northwest winds around 5 mph in the evening, becoming light and variable.
Monday... Mostly sunny. Humid with highs around 80. Southwest winds around 5 mph.
Monday Night... Mostly cloudy with a chance of showers and thunderstorms. Lows in the lower 60s. Chance of rain 50%.
Tuesday... Partly sunny with a chance of thunderstorms. A chance of showers in the morning, then showers likely in the afternoon. Highs around 80. Chance of rain 70%.
Tuesday Night... Showers likely with a chance of thunderstorms in the evening, then a chance of showers with a slight chance of thunderstorms after midnight. Lows in the lower 60s. Chance of rain 70%.
Wednesday... Mostly cloudy in the morning, then becoming partly sunny. Highs in the mid 70s.
Wednesday Night... Mostly cloudy. Lows in the upper 50s.
Thursday... Mostly cloudy in the morning, then mostly sunny with a slight chance of showers and thunderstorms in the afternoon. Highs in the mid 70s. Chance of rain 20%.
Thursday Night... A chance of thunderstorms in the evening. Partly cloudy with a chance of showers. Lows in the upper 50s. Chance of rain 40%.
POP = Probability of Precipitation
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