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Sumner, IA 7-Day Night Weather Forecast
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Sumner, IA Weather Forecast
Sumner, IA Weather Forecast Date: 128 PM CDT Fri Sep 25 2026
The area/counties/county of: Bremer, including the city of Waverly.or toggle through each period.
This Afternoon... Mostly cloudy. Near steady temperature in the upper 60s. Southeast winds 5 to 10 mph.
Tonight... Mostly cloudy. Lows in the mid 50s. Southeast winds 5 to 10 mph.
Saturday... Showers. Highs in the lower 60s. Southeast winds 10 to 15 mph. Chance of rain 80%.
Saturday Night... Cloudy with a slight chance of thunderstorms. A slight chance of showers in the evening, then a chance of showers after midnight. Near steady temperature in the upper 50s. Southeast winds 10 to 15 mph. Chance of rain 50%.
Sunday... Cloudy. A chance of showers with a slight chance of thunderstorms in the morning. Highs in the mid 60s. Southeast winds around 5 mph. Chance of rain 40%.
Sunday Night... Mostly cloudy. Lows in the upper 50s.
Monday... Partly sunny. Highs in the upper 60s.
Monday Night... Partly cloudy. Lows in the mid 50s.
Tuesday... Mostly cloudy with a 50% chance of showers. Highs in the upper 60s.
Tuesday Night... A slight chance of thunderstorms in the evening. Showers likely. Lows in the upper 50s. Chance of rain 70%.
Wednesday... Showers likely, mainly in the morning. Highs in the upper 60s. Chance of rain 70%.
Wednesday Night... Mostly cloudy with a 50% chance of showers. Lows in the upper 50s.
POP = Probability of Precipitation
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