Marion, OH Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Marion, a city in Marion County, Ohio.
Overnight
61°F
Chance Light Rain
A chance of rain. Mostly cloudy, with a low around 61. South wind around 17 mph, with gusts as high as 28 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Marion
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 61°F | Chance Light Rain | 17 mph S | 30% |
| Wednesday | 65°F | Light Rain | 16 to 20 mph S | 92% |
| Wednesday Night | 51°F | Light Rain Likely then Mostly Cloudy | 8 to 17 mph SW | 60% |
| Thursday | 62°F | Partly Sunny | 8 to 15 mph SW | 0% |
| Thursday Night | 46°F | Mostly Cloudy | 5 to 9 mph SW | 13% |
| Friday | 55°F | Chance Rain Showers | 3 to 10 mph W | 49% |
| Friday Night | 38°F | Chance Rain Showers | 12 mph NW | 49% |
| Saturday | 50°F | Mostly Cloudy | 12 mph NW | 11% |
| Saturday Night | 33°F | Mostly Cloudy | 3 to 7 mph W | 5% |
| Sunday | 54°F | Mostly Sunny | 5 to 12 mph W | 6% |
| Sunday Night | 34°F | Mostly Clear | 6 to 9 mph W | 6% |
| Monday | 57°F | Sunny | 5 to 10 mph W | 3% |
| Monday Night | 38°F | Mostly Clear | 8 mph SW | 2% |
| Tuesday | 62°F | Sunny | 7 to 12 mph W | 1% |
Forecast source: National Weather Service (api.weather.gov) for Marion (40.597, -83.123). Updated through the day.
Growing snapshot for Marion
Last spring frost
Apr 25
First fall frost
Oct 20
Growing season
178 days
Hardiness zone
6a
More local growing data for Marion: nearby ZIP 43302 weather · frost dates · planting calendar · Ohio frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Marion 2 N, Oh (1.2 mi from Marion). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.