Harman US

Jefferson, OH Weather & Growing Conditions

This Afternoon
73°F
Light Rain
Rain. Mostly cloudy. High near 73, with temperatures falling to around 66 in the afternoon. South wind around 15 mph. Chance of precipitation is 80%. New rainfall amounts less than a tenth of an inch possible.

7-day forecast

WhenTempForecastWindPrecip
This Afternoon 73°F Light Rain 15 mph S 81%
Tonight 54°F Light Rain 7 to 16 mph S 96%
Thursday 65°F Partly Sunny 7 to 15 mph SW 4%
Thursday Night 44°F Mostly Cloudy then Slight Chance Rain Showers 3 to 7 mph SW 15%
Friday 58°F Rain Showers Likely 3 to 8 mph SW 57%
Friday Night 38°F Rain Showers 3 to 8 mph W 77%
Saturday 51°F Rain Showers Likely 9 to 14 mph W 57%
Saturday Night 32°F Chance Light Rain 5 to 9 mph W 53%
Sunday 53°F Slight Chance Light Rain then Partly Sunny 7 to 14 mph W 15%
Sunday Night 32°F Slight Chance Light Rain 6 to 9 mph W 19%
Monday 55°F Slight Chance Light Rain 7 to 13 mph W 20%
Monday Night 33°F Partly Cloudy 5 to 9 mph SW 14%
Tuesday 58°F Mostly Sunny then Slight Chance Light Rain 9 to 14 mph SW 15%
Tuesday Night 32°F Slight Chance Light Rain 3 to 8 mph W 15%

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 Nov 4, 2026.