Fostoria, MI Weather & Growing Conditions
Overnight
60°F
Mostly Cloudy
Mostly cloudy, with a low around 60. South wind around 9 mph, with gusts as high as 21 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 60°F | Mostly Cloudy | 9 mph S | 3% |
| Wednesday | 69°F | Light Rain | 10 to 14 mph S | 88% |
| Wednesday Night | 49°F | Light Rain then Mostly Cloudy | 7 to 13 mph SSW | 83% |
| Thursday | 60°F | Mostly Cloudy then Slight Chance Light Rain | 8 to 13 mph SW | 22% |
| Thursday Night | 42°F | Chance Light Rain | 2 to 7 mph W | 47% |
| Friday | 53°F | Light Rain Likely | 3 to 9 mph NW | 55% |
| Friday Night | 35°F | Chance Light Rain | 5 to 8 mph NNW | 45% |
| Saturday | 50°F | Chance Light Rain then Partly Sunny | 8 mph NW | 29% |
| Saturday Night | 29°F | Partly Cloudy | 3 mph W | 5% |
| Sunday | 55°F | Mostly Sunny then Slight Chance Light Rain | 3 to 10 mph WSW | 15% |
| Sunday Night | 31°F | Slight Chance Light Rain then Partly Cloudy | 5 to 8 mph WNW | 15% |
| Monday | 56°F | Mostly Sunny | 6 to 10 mph W | 11% |
| Monday Night | 35°F | Partly Cloudy | 8 mph WSW | 8% |
| Tuesday | 58°F | Mostly Sunny | 8 to 13 mph W | 3% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Fostoria, MI
Last spring frost
May 4
First fall frost
Oct 13
Growing season
161 days
Hardiness zone
6a
Explore more for Fostoria, MI: full frost dates · planting calendar · Michigan frost dates
Climate data from the nearest NOAA station, Lapeer 2W, Mi (12.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.