Jefferson, OH Weather & Growing Conditions
Overnight
55°F
Mostly Cloudy
Mostly cloudy, with a low around 55. East wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 55°F | Mostly Cloudy | 5 mph E | 1% |
| Saturday | 73°F | Mostly Cloudy then Slight Chance Rain Showers | 5 mph SE | 15% |
| Saturday Night | 60°F | Slight Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 6 mph SE | 68% |
| Sunday | 70°F | Showers And Thunderstorms | 6 to 12 mph NW | 85% |
| Sunday Night | 50°F | Chance Rain Showers then Mostly Cloudy | 8 to 12 mph NE | 33% |
| Monday | 65°F | Mostly Cloudy | 13 mph NE | 5% |
| Monday Night | 48°F | Chance Rain Showers | 12 mph NE | 37% |
| Tuesday | 63°F | Chance Rain Showers | 14 mph E | 37% |
| Tuesday Night | 49°F | Rain Showers Likely | 13 to 16 mph E | 56% |
| Wednesday | 64°F | Rain Showers Likely | 16 mph E | 56% |
| Wednesday Night | 49°F | Showers And Thunderstorms Likely | 12 to 15 mph SE | 58% |
| Thursday | 65°F | Chance Showers And Thunderstorms | 12 mph E | 52% |
| Thursday Night | 49°F | Slight Chance Rain Showers | 5 to 12 mph E | 20% |
| Friday | 67°F | Slight Chance Rain Showers | 5 to 14 mph NE | 21% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Jefferson, OH
Last spring frost
May 2
First fall frost
Oct 21
Growing season
171 days
Hardiness zone
6a
Explore more for Jefferson, OH: full frost dates · planting calendar · Ohio frost dates
Climate data from the nearest NOAA station, Ashtabula Co Ap, Oh (4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.