Fostoria, OH Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Fostoria, a city in Seneca County, Ohio.
Overnight
62°F
Chance Light Rain
A chance of rain. Mostly cloudy, with a low around 62. South wind around 18 mph, with gusts as high as 31 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Fostoria
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 62°F | Chance Light Rain | 18 mph S | 26% |
| Wednesday | 67°F | Light Rain | 22 mph S | 99% |
| Wednesday Night | 51°F | Light Rain then Mostly Cloudy | 10 to 18 mph SW | 75% |
| Thursday | 61°F | Partly Sunny | 12 to 18 mph SW | 1% |
| Thursday Night | 47°F | Mostly Cloudy then Slight Chance Rain Showers | 7 to 12 mph SW | 22% |
| Friday | 54°F | Rain Showers Likely | 7 to 12 mph W | 60% |
| Friday Night | 38°F | Chance Rain Showers | 12 mph NW | 44% |
| Saturday | 52°F | Slight Chance Rain Showers then Partly Sunny | 12 mph NW | 16% |
| Saturday Night | 33°F | Partly Cloudy | 7 mph W | 3% |
| Sunday | 55°F | Mostly Sunny | 7 to 15 mph W | 6% |
| Sunday Night | 34°F | Mostly Clear | 7 to 12 mph W | 6% |
| Monday | 58°F | Sunny | 7 to 12 mph SW | 2% |
| Monday Night | 39°F | Mostly Clear | 8 to 12 mph SW | 2% |
| Tuesday | 62°F | Sunny | 9 to 13 mph W | 1% |
Forecast source: National Weather Service (api.weather.gov) for Fostoria (41.160, -83.412). Updated through the day.
Growing snapshot for Fostoria
Last spring frost
Apr 23
First fall frost
Oct 23
Growing season
184 days
Hardiness zone
6b
More local growing data for Fostoria: nearby ZIP 44830 weather · frost dates · planting calendar · Ohio frost dates
Nearby towns & communities
Attica
Bascom
Bettsville
Bloomville
Flat Rock
Fort Seneca
Green Springs
Kansas
McCutchenville
New Riegel
Old Fort
Republic
Tiffin
Climate data from the nearest NOAA station, Tiffin, Oh (12.6 mi from Fostoria). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.