Rio Grande, OH Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Rio Grande, a village in Gallia County, Ohio.
This Afternoon
81°F
Partly Sunny
Partly sunny, with a high near 81. Northeast wind around 7 mph.
7-day forecast for Rio Grande
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 81°F | Partly Sunny | 7 mph NE | 3% |
| Tonight | 62°F | Partly Cloudy | 2 to 6 mph NE | 0% |
| Saturday | 86°F | Mostly Sunny | 2 mph E | 5% |
| Saturday Night | 67°F | Slight Chance Showers And Thunderstorms | 3 mph SE | 48% |
| Sunday | 87°F | Slight Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 6 mph SW | 57% |
| Sunday Night | 65°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 5 mph N | 57% |
| Monday | 78°F | Chance Rain Showers then Chance Showers And Thunderstorms | 7 mph NE | 37% |
| Monday Night | 62°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 3 to 8 mph NE | 60% |
| Tuesday | 75°F | Showers And Thunderstorms Likely | 7 mph NE | 60% |
| Tuesday Night | 61°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 7 mph NE | 65% |
| Wednesday | 72°F | Showers And Thunderstorms Likely | 8 mph E | 65% |
| Wednesday Night | 57°F | Showers And Thunderstorms Likely | 3 to 7 mph NE | 61% |
| Thursday | 71°F | Slight Chance Rain Showers | 6 mph NE | 19% |
| Thursday Night | 56°F | Slight Chance Rain Showers then Mostly Cloudy | 2 to 6 mph N | 19% |
Forecast source: National Weather Service (api.weather.gov) for Rio Grande (38.880, -82.379). Updated through the day.
Growing snapshot for Rio Grande
Last spring frost
Apr 18
First fall frost
Oct 28
Growing season
192 days
Hardiness zone
6b
More local growing data for Rio Grande: nearby ZIP 45674 weather · frost dates · planting calendar · Ohio frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Gallipolis, Oh (11.4 mi from Rio Grande). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 18, 2026.