Upper Sandusky, OH Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Upper Sandusky, a city in Wyandot County, Ohio.
Overnight
62°F
Chance Light Rain
A chance of rain after 4am. Mostly cloudy, with a low around 62. South wind around 18 mph, with gusts as high as 30 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Upper Sandusky
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 62°F | Chance Light Rain | 18 mph S | 31% |
| Wednesday | 66°F | Light Rain | 21 mph S | 94% |
| Wednesday Night | 51°F | Chance Light Rain then Mostly Cloudy | 9 to 20 mph SW | 54% |
| Thursday | 62°F | Partly Sunny | 9 to 17 mph SW | 0% |
| Thursday Night | 47°F | Mostly Cloudy then Slight Chance Rain Showers | 5 to 10 mph SW | 15% |
| Friday | 55°F | Chance Rain Showers | 5 to 12 mph W | 50% |
| Friday Night | 39°F | Chance Rain Showers | 12 mph NW | 50% |
| Saturday | 50°F | Mostly Cloudy | 12 mph NW | 10% |
| Saturday Night | 34°F | Mostly Cloudy | 7 mph W | 4% |
| Sunday | 55°F | Mostly Sunny | 6 to 14 mph W | 6% |
| Sunday Night | 34°F | Mostly Clear | 6 to 10 mph W | 6% |
| Monday | 57°F | Sunny | 6 to 12 mph W | 3% |
| Monday Night | 39°F | Mostly Clear | 9 mph SW | 2% |
| Tuesday | 62°F | Sunny | 8 to 13 mph W | 1% |
Forecast source: National Weather Service (api.weather.gov) for Upper Sandusky (40.831, -83.271). Updated through the day.
Growing snapshot for Upper Sandusky
Last spring frost
Apr 29
First fall frost
Oct 17
Growing season
171 days
Hardiness zone
6a
More local growing data for Upper Sandusky: nearby ZIP 43351 weather · frost dates · planting calendar · Ohio frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Upper Sandusky, Oh (1.7 mi from Upper Sandusky). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.