Lake Seneca, OH Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Lake Seneca, a community in Williams County, Ohio.
This Afternoon
73°F
Sunny
Sunny, with a high near 73. South wind around 15 mph, with gusts as high as 25 mph.
7-day forecast for Lake Seneca
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 73°F | Sunny | 15 mph S | 2% |
| Tonight | 62°F | Partly Cloudy then Chance Rain Showers | 10 to 15 mph S | 27% |
| Wednesday | 70°F | Rain Showers | 15 mph S | 98% |
| Wednesday Night | 49°F | Chance Rain Showers then Mostly Cloudy | 10 mph SW | 29% |
| Thursday | 61°F | Mostly Cloudy | 10 to 15 mph SW | 14% |
| Thursday Night | 45°F | Mostly Cloudy then Slight Chance Rain Showers | 5 to 10 mph W | 15% |
| Friday | 56°F | Chance Rain Showers | 5 to 10 mph NW | 44% |
| Friday Night | 36°F | Chance Rain Showers | 5 to 10 mph N | 28% |
| Saturday | 52°F | Partly Sunny | 5 to 10 mph NW | 13% |
| Saturday Night | 32°F | Partly Cloudy | 0 to 5 mph W | 5% |
| Sunday | 56°F | Mostly Sunny then Slight Chance Rain Showers | 5 to 10 mph W | 19% |
| Sunday Night | 34°F | Slight Chance Rain Showers | 5 to 10 mph W | 19% |
| Monday | 59°F | Slight Chance Rain Showers then Mostly Sunny | 5 to 15 mph W | 15% |
| Monday Night | 38°F | Partly Cloudy | 10 mph W | 9% |
Forecast source: National Weather Service (api.weather.gov) for Lake Seneca (41.666, -84.647). Updated through the day.
Growing snapshot for Lake Seneca
Last spring frost
Apr 28
First fall frost
Oct 18
Growing season
173 days
Hardiness zone
6a
More local growing data for Lake Seneca: nearby ZIP 43543 weather · frost dates · planting calendar · Ohio frost dates
Nearby towns & communities
Alvordton
Blakeslee
Bryan
Edgerton
Edon
Holiday City
Kunkle
Montpelier
Nettle Lake
Pioneer
Pulaski
Stryker
West Unity
Climate data from the nearest NOAA station, Montpelier, Oh (1.8 mi from Lake Seneca). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.