Marion, WI Weather & Growing Conditions
Tonight
54°F
Showers And Thunderstorms
Rain showers likely before 1am, then showers and thunderstorms. Cloudy, with a low around 54. East wind 6 to 9 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 54°F | Showers And Thunderstorms | 6 to 9 mph E | 79% |
| Saturday | 63°F | Showers And Thunderstorms | 9 to 13 mph ENE | 80% |
| Saturday Night | 49°F | Rain Showers Likely then Mostly Cloudy | 7 to 10 mph NE | 69% |
| Sunday | 68°F | Mostly Sunny | 9 to 14 mph NE | 10% |
| Sunday Night | 45°F | Mostly Cloudy | 13 mph NE | 1% |
| Monday | 62°F | Partly Sunny | 13 mph NE | 1% |
| Monday Night | 41°F | Mostly Cloudy | 7 to 10 mph NE | 2% |
| Tuesday | 63°F | Partly Sunny | 7 to 12 mph NE | 4% |
| Tuesday Night | 43°F | Partly Cloudy | 3 to 8 mph NE | 3% |
| Wednesday | 66°F | Mostly Sunny | 3 to 8 mph NE | 3% |
| Wednesday Night | 46°F | Patchy Fog | 1 to 6 mph NE | 2% |
| Thursday | 69°F | Mostly Sunny | 1 to 5 mph NE | 6% |
| Thursday Night | 47°F | Partly Cloudy | 0 to 3 mph ENE | 5% |
| Friday | 71°F | Mostly Sunny | 1 to 5 mph N | 4% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Marion, WI
Last spring frost
May 4
First fall frost
Oct 6
Growing season
154 days
Hardiness zone
5a
Explore more for Marion, WI: full frost dates · planting calendar · Wisconsin frost dates
Climate data from the nearest NOAA station, Clintonville, Wi (8.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.