St. Charles, MI Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for St. Charles, a village in Saginaw County, Michigan.

Tonight

61°F

Partly Cloudy

Partly cloudy, with a low around 61. South southeast wind around 13 mph, with gusts as high as 24 mph.

7-day forecast for St. Charles

When	Temp	Forecast	Wind	Precip
Tonight	61°F	Partly Cloudy	13 mph SSE	5%
Wednesday	72°F	Light Rain	13 to 17 mph S	79%
Wednesday Night	51°F	Light Rain Likely then Mostly Cloudy	9 to 13 mph SSW	72%
Thursday	60°F	Mostly Cloudy then Chance Light Rain	12 to 15 mph SW	32%
Thursday Night	44°F	Chance Light Rain	3 to 9 mph W	53%
Friday	53°F	Chance Light Rain	6 to 12 mph NNW	53%
Friday Night	36°F	Chance Light Rain	7 to 10 mph NNW	38%
Saturday	52°F	Slight Chance Light Rain then Partly Sunny	9 mph NW	17%
Saturday Night	32°F	Partly Cloudy	6 mph WSW	4%
Sunday	56°F	Mostly Sunny then Slight Chance Light Rain	5 to 13 mph W	17%
Sunday Night	34°F	Slight Chance Light Rain then Partly Cloudy	6 to 10 mph WNW	17%
Monday	58°F	Mostly Sunny	7 to 14 mph W	9%
Monday Night	38°F	Partly Cloudy	10 mph WSW	9%
Tuesday	60°F	Mostly Sunny	8 to 14 mph W	3%

Forecast source: National Weather Service (api.weather.gov) for St. Charles (43.298, -84.148). Updated through the day.

Growing snapshot for St. Charles

Last spring frost

Apr 29

First fall frost

Oct 21

Growing season

175 days

Hardiness zone

More local growing data for St. Charles: nearby ZIP 48655 weather · frost dates · planting calendar · Michigan frost dates

Nearby towns & communities

Birch Run Bridgeport Buena Vista Burt Chesaning Frankenmuth Freeland Hemlock Merrill Oakley Robin Glen-Indiantown Saginaw Shields Zilwaukee

All Michigan locations ›

Climate data from the nearest NOAA station, Saginaw #3, Mi (13.1 mi from St. Charles). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.