Jefferson, OH Weather & Growing Conditions
Today
73°F
Mostly Cloudy
Mostly cloudy, with a high near 73. Southeast wind around 6 mph. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 73°F | Mostly Cloudy | 6 mph SE | 14% |
| Tonight | 60°F | Slight Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 6 mph SE | 69% |
| Sunday | 70°F | Showers And Thunderstorms | 6 to 12 mph W | 83% |
| Sunday Night | 50°F | Chance Rain Showers then Mostly Cloudy | 7 to 12 mph NE | 34% |
| Monday | 65°F | Mostly Cloudy | 12 mph NE | 5% |
| Monday Night | 48°F | Chance Rain Showers | 10 mph NE | 38% |
| Tuesday | 63°F | Chance Rain Showers | 10 to 14 mph E | 38% |
| Tuesday Night | 48°F | Rain Showers Likely | 16 mph E | 56% |
| Wednesday | 63°F | Rain Showers Likely | 17 mph E | 56% |
| Wednesday Night | 48°F | Showers And Thunderstorms Likely | 13 to 16 mph SE | 60% |
| Thursday | 65°F | Chance Showers And Thunderstorms | 9 to 13 mph E | 54% |
| Thursday Night | 48°F | Slight Chance Rain Showers | 5 to 10 mph E | 21% |
| Friday | 68°F | Slight Chance Rain Showers | 5 to 13 mph NE | 21% |
| Friday Night | 48°F | Partly Cloudy | 3 to 13 mph NE | 14% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Jefferson, OH
Last spring frost
May 10
First fall frost
Oct 10
Growing season
154 days
Hardiness zone
6a
Explore more for Jefferson, OH: full frost dates · planting calendar · Ohio frost dates
Climate data from the nearest NOAA station, Dorset, Oh (1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.