Fostoria, OH Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Fostoria, a city in Seneca County, Ohio.
This Afternoon
76°F
Sunny
Sunny, with a high near 76. South wind around 14 mph.
7-day forecast for Fostoria
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 76°F | Sunny | 14 mph S | 2% |
| Tonight | 62°F | Partly Cloudy then Chance Light Rain | 12 to 18 mph S | 28% |
| Wednesday | 68°F | Light Rain | 21 mph S | 82% |
| Wednesday Night | 51°F | Light Rain Likely then Mostly Cloudy | 10 to 18 mph SW | 60% |
| Thursday | 63°F | Partly Sunny | 12 to 17 mph SW | 2% |
| Thursday Night | 48°F | Mostly Cloudy | 5 to 10 mph SW | 5% |
| Friday | 57°F | Chance Light Rain | 5 to 9 mph NW | 33% |
| Friday Night | 41°F | Chance Light Rain | 9 mph NW | 30% |
| Saturday | 53°F | Slight Chance Light Rain | 10 mph NW | 17% |
| Saturday Night | 35°F | Partly Cloudy | 6 mph W | 9% |
| Sunday | 55°F | Mostly Sunny then Slight Chance Light Rain | 5 to 14 mph W | 16% |
| Sunday Night | 36°F | Slight Chance Light Rain then Partly Cloudy | 8 to 12 mph W | 16% |
| Monday | 58°F | Mostly Sunny | 8 to 14 mph W | 14% |
| Monday Night | 39°F | Partly Cloudy | 13 mph SW | 13% |
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.