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
74°F
Rain Showers
Rain showers before 2pm, then showers and thunderstorms. Mostly cloudy, with a high near 74. East wind around 8 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Oak Harbor
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 74°F | Rain Showers | 8 mph E | 90% |
| Tonight | 64°F | Slight Chance Showers And Thunderstorms then Showers And Thunderstorms | 3 to 7 mph S | 89% |
| Sunday | 73°F | Showers And Thunderstorms | 5 to 16 mph NW | 84% |
| Sunday Night | 58°F | Chance Rain Showers then Mostly Cloudy | 17 mph NE | 31% |
| Monday | 67°F | Slight Chance Rain Showers | 17 to 22 mph NE | 23% |
| Monday Night | 54°F | Slight Chance Rain Showers | 16 to 21 mph NE | 21% |
| Tuesday | 65°F | Chance Rain Showers | 18 to 22 mph NE | 25% |
| Tuesday Night | 54°F | Rain Showers Likely | 15 to 21 mph E | 58% |
| Wednesday | 66°F | Rain Showers Likely | 18 mph E | 59% |
| Wednesday Night | 54°F | Rain Showers Likely | 8 to 17 mph E | 59% |
| Thursday | 67°F | Slight Chance Rain Showers | 9 to 14 mph E | 24% |
| Thursday Night | 54°F | Mostly Cloudy | 6 to 14 mph NE | 13% |
| Friday | 68°F | Mostly Sunny | 8 to 16 mph NE | 12% |
| Friday Night | 54°F | Partly Cloudy | 7 to 13 mph NE | 11% |
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 Sep 19, 2026.