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ZIP 48631 · Bay City, Michigan

Current conditions and the National Weather Service 7-day forecast for ZIP code 48631, Bay City, Michigan — temperature, rain chance, wind, radar and alerts.

Saturday Aug 29 night: a low around 64°F. Sunday Aug 30: a high near 80°F and a low around 65°F. The wettest day looks like Sunday Aug 30, near 0.68 in. Highs over the period run 80°F to 88°F.

National Weather Service forecast for ZIP 48631, Bay City, Michigan
DayHighLowPrecip
Saturday Aug 2964°
Sunday Aug 3080°65°0.68 in
Monday Aug 3185°69°0.04 in
Tuesday Sep 188°68°
Wednesday Sep 288°65°
Thursday Sep 381°61°
Friday Sep 480°60°
Saturday Sep 581°

NOAA NWS NDFD 2.5 km, run 2026-08-30 00:00 UTC · days are local time in America/Detroit. The live page updates continuously.

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