Harman US

Rio Grande, OH Weather & Growing Conditions

Overnight
62°F
Partly Cloudy
Partly cloudy, with a low around 62. Northeast wind around 2 mph.

7-day forecast

WhenTempForecastWindPrecip
Overnight 62°F Partly Cloudy 2 mph NE 0%
Saturday 87°F Mostly Sunny 2 mph E 6%
Saturday Night 66°F Chance Showers And Thunderstorms 3 mph S 47%
Sunday 87°F Slight Chance Rain Showers then Partly Sunny 7 mph SW 23%
Sunday Night 62°F Chance Showers And Thunderstorms 6 mph N 54%
Monday 75°F Chance Rain Showers 8 mph NE 45%
Monday Night 57°F Chance Showers And Thunderstorms 3 to 8 mph NE 64%
Tuesday 73°F Showers And Thunderstorms Likely 7 mph NE 64%
Tuesday Night 58°F Showers And Thunderstorms Likely 7 mph NE 72%
Wednesday 72°F Showers And Thunderstorms Likely 9 mph E 72%
Wednesday Night 55°F Showers And Thunderstorms Likely 5 to 8 mph E 70%
Thursday 72°F Chance Rain Showers 7 mph NE 34%
Thursday Night 54°F Slight Chance Rain Showers then Mostly Cloudy 2 to 6 mph N 19%
Friday 72°F Mostly Sunny 7 mph NE 10%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for Rio Grande, OH

Last spring frost
Apr 18
First fall frost
Oct 28
Growing season
192 days
Hardiness zone
6b

Explore more for Rio Grande, OH: full frost dates · planting calendar · Ohio frost dates

Climate data from the nearest NOAA station, Gallipolis, Oh (11.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.