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Sumner, MI Weather Forecast
Sumner, MI Weather Forecast Date: 1217 AM EDT Fri Oct 23 2026
The area/counties/county of: Gratiot, including the city of Alma.or toggle through each period.
Early This Morning... Partly cloudy. Areas of fog. Lows in the lower 40s. Light winds.
Today... Partly sunny in the morning then clearing. Areas of fog in the morning. Highs in the mid 60s. Light winds.
Tonight... Partly cloudy. Patchy fog after midnight. Lows around 40. Light winds.
Saturday... Partly sunny in the morning then becoming mostly sunny. Patchy fog in the morning. Highs in the upper 60s. Light winds.
Saturday Night... Partly cloudy. Lows in the mid 40s. South winds around 5 mph.
Sunday... Mostly sunny in the morning then becoming partly sunny. Highs in the lower 70s. Southwest winds 5 to 10 mph. Gusts up to 20 mph in the afternoon.
Sunday Night... Partly cloudy. Lows in the upper 40s.
Monday... Mostly cloudy. Highs in the lower 60s.
Monday Night... Mostly cloudy in the evening then becoming partly cloudy. Lows around 40.
Tuesday... Partly sunny. Highs in the upper 50s.
Tuesday Night... Partly cloudy. Lows around 40.
Wednesday... Partly sunny. Highs in the mid 60s.
Wednesday Night... Partly cloudy. Lows in the mid 40s.
POP = Probability of Precipitation
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