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Grimes, IA 7-Day Night Weather Forecast
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Grimes, IA Weather Forecast
Grimes, IA Weather Forecast Date: 903 PM CDT Tue Sep 15 2026
The area/counties/county of: Polk, including the city of Des Moines.or toggle through each period.
Rest of Tonight... Mostly cloudy. A chance of showers with a slight chance of thunderstorms. Some thunderstorms May produce heavy rainfall. Lows around 60. Northeast winds around 5 mph. Chance of rain 30%.
Wednesday... Mostly cloudy with a chance of showers. A slight chance of thunderstorms. Some thunderstorms May produce heavy rainfall in the morning. Highs in the upper 60s. East winds 5 to 10 mph. Chance of rain 50%.
Wednesday Night... Mostly cloudy with a slight chance of thunderstorms. A slight chance of showers in the evening, then a chance of showers after midnight. Humid with lows in the mid 60s. East winds around 5 mph. Chance of rain 50%.
Thursday... Mostly cloudy with a slight chance of thunderstorms. A chance of showers, mainly in the morning. Humid with highs in the upper 70s. Northeast winds around 5 mph. Chance of rain 50%.
Thursday Night... Mostly cloudy. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. Humid with lows in the mid 60s. East winds 5 to 10 mph. Chance of rain 50%.
Friday... Partly sunny. A chance of showers and thunderstorms, mainly in the morning. Highs in the lower 80s. Chance of rain 50%.
Friday Night... A chance of thunderstorms. Showers. Lows in the upper 60s. Chance of rain 80%.
Saturday... Mostly cloudy in the morning, then becoming partly sunny. A slight chance of thunderstorms. A chance of showers, mainly in the morning. Highs in the lower 80s. Chance of rain 40%.
Saturday Night... Mostly cloudy with a chance of showers. A slight chance of thunderstorms in the evening, then a chance of thunderstorms after midnight. Lows in the mid 60s. Chance of rain 50%.
Sunday... Mostly cloudy with a 50% chance of showers. Highs in the lower 70s.
Sunday Night... Mostly cloudy with a 20% chance of showers. Lows around 60.
Monday... Mostly cloudy with a slight chance of showers in the morning, then partly sunny in the afternoon. Highs in the upper 60s. Chance of rain 20%.
Monday Night... Mostly cloudy. Lows in the upper 50s.
POP = Probability of Precipitation
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