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Griswold, IA Weather Forecast
Griswold, IA Weather Forecast Date: 1233 PM CDT Wed Sep 23 2026
The area/counties/county of: Cass, including the city of Atlantic.or toggle through each period.
This Afternoon... Mostly sunny. Highs in the upper 60s. Southeast winds 5 to 10 mph.
Tonight... Partly cloudy in the evening, then becoming mostly cloudy. Lows in the mid 50s. Southeast winds around 5 mph.
Thursday... Mostly cloudy with a 20% chance of showers. Highs in the upper 60s. Southeast winds 5 to 10 mph.
Thursday Night... Cloudy with a 50% chance of showers. Lows in the upper 50s. Southeast winds around 5 mph.
Friday... A slight chance of thunderstorms. Showers likely. Highs in the upper 60s. Southeast winds 5 to 10 mph. Chance of rain 70%.
Friday Night... A chance of thunderstorms. A chance of showers in the evening, then showers after midnight. Lows around 60. Chance of rain 80%.
Saturday... Showers likely with a slight chance of thunderstorms in the morning, then a chance of showers in the afternoon. Highs in the lower 70s. Chance of rain 70%.
Saturday Night... Mostly cloudy. A slight chance of showers in the evening. Lows in the lower 60s. Chance of rain 20%.
Sunday... Partly sunny. Highs in the mid 70s.
Sunday Night... Partly cloudy in the evening, then becoming mostly cloudy. Lows in the lower 60s.
Monday... Partly sunny. A slight chance of showers in the afternoon. Highs in the mid 70s. Chance of rain 20%.
Monday Night... Partly cloudy with a chance of showers in the evening, then mostly cloudy with showers likely with a slight chance of thunderstorms after midnight. Lows in the lower 60s. Chance of rain 60%.
POP = Probability of Precipitation
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