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Lewis, IA Weather Forecast
Lewis, IA Weather Forecast Date: 548 PM CDT Tue Oct 13 2026
The area/counties/county of: Cass, including the city of Atlantic.or toggle through each period.
Tonight... Mostly cloudy with a 20% chance of showers. Lows in the lower 50s. North winds 5 to 10 mph.
Wednesday... Mostly cloudy. Highs in the mid 60s. Northeast winds around 10 mph.
Wednesday Night... Cloudy. Showers likely with a slight chance of thunderstorms after midnight. Lows in the lower 50s. East winds 5 to 10 mph. Chance of rain 70%.
Thursday... Showers with a chance of thunderstorms in the morning, then showers with a slight chance of thunderstorms in the afternoon. Highs in the mid 60s. Northeast winds 5 to 10 mph, becoming north 10 to 15 mph with gusts up to 25 mph in the afternoon. Chance of rain near 100%.
Thursday Night... Mostly cloudy in the evening, then clearing. Lows in the lower 40s. Northwest winds around 15 mph with gusts up to 30 mph.
Friday... Sunny. Highs in the upper 50s.
Friday Night... Clear. Areas of frost after midnight. Lows in the lower 30s.
Saturday... Areas of frost in the morning. Sunny. Highs in the lower 60s.
Saturday Night... Mostly clear. Lows in the lower 40s.
Sunday... Mostly sunny. Highs in the upper 60s.
Sunday Night... Mostly cloudy. Lows in the upper 40s.
Monday... Mostly sunny. Highs in the lower 70s.
Monday Night... Partly cloudy in the evening, then becoming mostly clear. Lows in the lower 50s.
POP = Probability of Precipitation
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