Marietta, OH Weather & Growing Conditions
Tonight
58°F
Mostly Clear
Mostly clear, with a low around 58. Southeast wind around 6 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 58°F | Mostly Clear | 6 mph SE | 2% |
| Wednesday | 75°F | Mostly Cloudy then Light Rain | 6 to 12 mph S | 90% |
| Wednesday Night | 58°F | Light Rain | 6 to 13 mph S | 99% |
| Thursday | 70°F | Mostly Sunny | 3 to 9 mph SW | 3% |
| Thursday Night | 46°F | Partly Cloudy | 0 to 3 mph SW | 2% |
| Friday | 66°F | Partly Sunny then Slight Chance Light Rain | 0 to 7 mph W | 15% |
| Friday Night | 40°F | Slight Chance Light Rain then Mostly Cloudy | 6 mph W | 15% |
| Saturday | 56°F | Partly Sunny | 5 to 9 mph W | 14% |
| Saturday Night | 36°F | Mostly Cloudy then Patchy Frost | 0 to 5 mph NW | 10% |
| Sunday | 60°F | Patchy Frost then Partly Sunny | 0 to 7 mph SW | 12% |
| Sunday Night | 34°F | Partly Cloudy then Slight Chance Light Rain | 5 mph W | 17% |
| Monday | 62°F | Slight Chance Light Rain | 3 to 9 mph W | 24% |
| Monday Night | 35°F | Slight Chance Light Rain then Patchy Frost | 6 mph SW | 20% |
| Tuesday | 65°F | Patchy Frost then Mostly Sunny | 6 to 12 mph SW | 4% |
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 Nov 4, 2026.