Marion, OH Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Marion, a city in Marion County, Ohio.
Tonight
61°F
Partly Cloudy then Chance Light Rain
A chance of rain after 5am. Partly cloudy, with a low around 61. Southeast wind 13 to 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 |
|---|---|---|---|---|
| Tonight | 61°F | Partly Cloudy then Chance Light Rain | 13 to 17 mph SE | 25% |
| Wednesday | 66°F | Light Rain | 16 to 20 mph S | 92% |
| Wednesday Night | 51°F | Light Rain Likely | 8 to 18 mph SW | 74% |
| Thursday | 64°F | Mostly Sunny | 8 to 15 mph SW | 3% |
| Thursday Night | 46°F | Partly Cloudy | 2 to 8 mph SW | 2% |
| Friday | 59°F | Partly Sunny then Slight Chance Light Rain | 3 to 9 mph NW | 22% |
| Friday Night | 40°F | Slight Chance Light Rain | 9 mph NW | 22% |
| Saturday | 53°F | Slight Chance Light Rain | 10 mph NW | 19% |
| Saturday Night | 35°F | Slight Chance Light Rain then Partly Cloudy | 2 to 7 mph W | 19% |
| Sunday | 55°F | Mostly Sunny then Slight Chance Light Rain | 3 to 12 mph W | 16% |
| Sunday Night | 34°F | Slight Chance Light Rain then Partly Cloudy | 9 mph W | 16% |
| Monday | 57°F | Slight Chance Light Rain | 7 to 12 mph W | 19% |
| Monday Night | 38°F | Slight Chance Light Rain then Partly Cloudy | 12 mph SW | 19% |
| Tuesday | 61°F | Mostly Sunny | 9 to 13 mph W | 4% |
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.