Oak Harbor, OH Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Oak Harbor, a village in Ottawa County, Ohio.
Today
82°F
Sunny
Sunny, with a high near 82. Southeast wind 1 to 5 mph.
7-day forecast for Oak Harbor
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 82°F | Sunny | 1 to 5 mph SE | 0% |
| Tonight | 62°F | Mostly Clear | 1 to 5 mph SE | 0% |
| Wednesday | 86°F | Sunny | 1 to 5 mph SW | 1% |
| Wednesday Night | 67°F | Partly Cloudy | 5 mph SW | 6% |
| Thursday | 85°F | Showers And Thunderstorms Likely | 5 to 8 mph SW | 57% |
| Thursday Night | 67°F | Showers And Thunderstorms Likely | 2 to 6 mph SW | 57% |
| Friday | 84°F | Chance Showers And Thunderstorms | 6 mph SW | 48% |
| Friday Night | 66°F | Chance Showers And Thunderstorms | 5 mph SW | 31% |
| Saturday | 86°F | Mostly Sunny | 5 to 8 mph SW | 13% |
| Saturday Night | 68°F | Partly Cloudy then Slight Chance Rain Showers | 8 mph SW | 21% |
| Sunday | 88°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 7 to 16 mph SW | 21% |
| Sunday Night | 70°F | Chance Showers And Thunderstorms | 8 to 15 mph SW | 39% |
| Monday | 87°F | Chance Rain Showers | 14 mph SW | 39% |
| Monday Night | 69°F | Chance Showers And Thunderstorms | 7 to 12 mph SW | 52% |
Forecast source: National Weather Service (api.weather.gov) for Oak Harbor (41.505, -83.135). Updated through the day.
Growing snapshot for Oak Harbor
Last spring frost
Apr 26
First fall frost
Oct 23
Growing season
179 days
Hardiness zone
6b
More local growing data for Oak Harbor: nearby ZIP 43449 weather · frost dates · planting calendar · Ohio frost dates
Nearby towns & communities
Bay View
Clay Center
Crystal Rock
Curtice
Elmore
Genoa
Lakeside
Marblehead
Port Clinton
Put-in-Bay
Rocky Ridge
Williston
Climate data from the nearest NOAA station, Fremont, Oh (13.9 mi from Oak Harbor). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.