Fostoria, OH Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Fostoria, a city in Seneca County, Ohio.
Today
82°F
Sunny
Sunny, with a high near 82. Southeast wind around 2 mph.
7-day forecast for Fostoria
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 82°F | Sunny | 2 mph SE | 0% |
| Tonight | 62°F | Mostly Clear | 2 mph E | 0% |
| Wednesday | 86°F | Sunny | 0 to 5 mph SW | 1% |
| Wednesday Night | 66°F | Mostly Clear | 5 mph SW | 6% |
| Thursday | 85°F | Mostly Sunny then Chance Showers And Thunderstorms | 5 to 8 mph SW | 51% |
| Thursday Night | 67°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 2 to 7 mph SW | 58% |
| Friday | 83°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 3 to 7 mph SW | 57% |
| Friday Night | 66°F | Chance Showers And Thunderstorms | 6 mph SW | 43% |
| Saturday | 85°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 to 8 mph SW | 17% |
| Saturday Night | 67°F | Slight Chance Showers And Thunderstorms | 7 mph SW | 18% |
| Sunday | 87°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 7 to 15 mph SW | 18% |
| Sunday Night | 70°F | Chance Showers And Thunderstorms | 9 to 14 mph SW | 35% |
| Monday | 87°F | Chance Rain Showers | 14 mph SW | 38% |
| Monday Night | 69°F | Chance Showers And Thunderstorms | 8 to 12 mph SW | 49% |
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 Aug 4, 2026.