St. Charles, MI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for St. Charles, a village in Saginaw County, Michigan.
Today
88°F
Sunny
Sunny, with a high near 88. Southwest wind around 9 mph.
7-day forecast for St. Charles
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 88°F | Sunny | 9 mph SW | 0% |
| Tonight | 61°F | Mostly Clear | 8 mph SSW | 0% |
| Wednesday | 86°F | Partly Sunny then Chance Showers And Thunderstorms | 5 to 9 mph SW | 37% |
| Wednesday Night | 63°F | Chance Showers And Thunderstorms | 2 to 8 mph W | 82% |
| Thursday | 81°F | Rain Showers | 6 mph WNW | 82% |
| Thursday Night | 60°F | Chance Showers And Thunderstorms then Partly Cloudy | 1 to 5 mph SE | 36% |
| Friday | 86°F | Mostly Sunny | 1 to 5 mph SW | 12% |
| Friday Night | 62°F | Mostly Clear | 5 mph SW | 12% |
| Saturday | 88°F | Sunny | 5 to 13 mph SW | 3% |
| Saturday Night | 65°F | Mostly Clear then Chance Rain Showers | 5 to 12 mph SW | 30% |
| Sunday | 89°F | Chance Rain Showers then Slight Chance Showers And Thunderstorms | 6 to 15 mph SW | 30% |
| Sunday Night | 66°F | Chance Showers And Thunderstorms | 6 to 14 mph WSW | 53% |
| Monday | 86°F | Chance Rain Showers | 9 mph WSW | 53% |
| Monday Night | 64°F | Chance Showers And Thunderstorms | 5 to 9 mph W | 47% |
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
6a
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
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 Aug 4, 2026.