Marietta, OH Weather & Growing Conditions
Today
87°F
Sunny
Sunny, with a high near 87. Northeast wind around 3 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 87°F | Sunny | 3 mph NE | 1% |
| Tonight | 68°F | Partly Cloudy | 2 mph E | 2% |
| Wednesday | 87°F | Mostly Sunny then Chance Showers And Thunderstorms | 3 mph SE | 30% |
| Wednesday Night | 69°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 2 mph S | 59% |
| Thursday | 86°F | Showers And Thunderstorms Likely | 1 to 6 mph SW | 65% |
| Thursday Night | 68°F | Showers And Thunderstorms Likely | 1 to 5 mph S | 65% |
| Friday | 85°F | Showers And Thunderstorms | 2 to 7 mph SW | 77% |
| Friday Night | 67°F | Showers And Thunderstorms | 1 to 5 mph SW | 77% |
| Saturday | 84°F | Chance Showers And Thunderstorms | 1 to 7 mph SW | 51% |
| Saturday Night | 67°F | Chance Showers And Thunderstorms | 0 to 5 mph SW | 51% |
| Sunday | 86°F | Slight Chance Showers And Thunderstorms | 0 to 7 mph SW | 22% |
| Sunday Night | 69°F | Slight Chance Showers And Thunderstorms | 1 to 5 mph SW | 22% |
| Monday | 87°F | Chance Showers And Thunderstorms | 2 to 9 mph SW | 26% |
| Monday Night | 69°F | Chance Showers And Thunderstorms | 1 to 6 mph SW | 38% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Marietta, OH
Last spring frost
Apr 18
First fall frost
Oct 27
Growing season
191 days
Hardiness zone
6b
Explore more for Marietta, OH: full frost dates · planting calendar · Ohio frost dates
Climate data from the nearest NOAA station, Marietta Wwtp, Oh (1.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.