Grand Blanc, MI Weather & Growing Conditions
Tonight
62°F
Mostly Cloudy
Mostly cloudy, with a low around 62. South wind around 13 mph, with gusts as high as 24 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 62°F | Mostly Cloudy | 13 mph S | 5% |
| Wednesday | 69°F | Light Rain | 13 to 16 mph S | 89% |
| Wednesday Night | 50°F | Light Rain then Mostly Cloudy | 8 to 13 mph SSW | 82% |
| Thursday | 60°F | Mostly Cloudy then Slight Chance Light Rain | 10 to 14 mph SW | 22% |
| Thursday Night | 45°F | Chance Light Rain | 3 to 8 mph W | 42% |
| Friday | 53°F | Chance Light Rain | 3 to 9 mph NW | 53% |
| Friday Night | 37°F | Chance Light Rain | 9 mph NNW | 51% |
| Saturday | 51°F | Chance Light Rain then Partly Sunny | 9 mph NW | 25% |
| Saturday Night | 32°F | Partly Cloudy | 6 mph W | 5% |
| Sunday | 55°F | Mostly Sunny then Slight Chance Light Rain | 5 to 10 mph WSW | 15% |
| Sunday Night | 34°F | Slight Chance Light Rain then Partly Cloudy | 6 to 9 mph WNW | 15% |
| Monday | 57°F | Mostly Sunny | 6 to 12 mph W | 11% |
| Monday Night | 39°F | Partly Cloudy | 10 mph WSW | 10% |
| Tuesday | 59°F | Mostly Sunny | 9 to 13 mph W | 3% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Grand Blanc, MI
Last spring frost
May 1
First fall frost
Oct 14
Growing season
164 days
Hardiness zone
6a
Explore more for Grand Blanc, MI: full frost dates · planting calendar · Michigan frost dates
Climate data from the nearest NOAA station, Goodrich, Mi (6.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.