Marathon City, WI Weather & Growing Conditions
Tonight
51°F
Rain Showers Likely
Rain showers likely before 1am, then showers and thunderstorms likely. Cloudy, with a low around 51. East wind around 12 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 51°F | Rain Showers Likely | 12 mph E | 72% |
| Saturday | 63°F | Rain Showers Likely | 10 to 14 mph E | 74% |
| Saturday Night | 48°F | Rain Showers Likely then Mostly Cloudy | 7 to 10 mph NE | 61% |
| Sunday | 69°F | Partly Sunny | 9 to 13 mph NE | 8% |
| Sunday Night | 41°F | Mostly Cloudy | 9 mph ENE | 1% |
| Monday | 63°F | Mostly Cloudy | 8 to 12 mph ENE | 3% |
| Monday Night | 39°F | Mostly Cloudy | 8 mph ENE | 3% |
| Tuesday | 63°F | Mostly Sunny | 6 to 10 mph ENE | 3% |
| Tuesday Night | 40°F | Partly Cloudy | 3 to 7 mph ENE | 3% |
| Wednesday | 66°F | Sunny | 7 mph E | 2% |
| Wednesday Night | 43°F | Partly Cloudy then Patchy Fog | 1 to 5 mph E | 2% |
| Thursday | 69°F | Mostly Sunny | 5 mph ESE | 7% |
| Thursday Night | 45°F | Partly Cloudy | 3 mph W | 7% |
| Friday | 72°F | Mostly Sunny | 1 to 6 mph NW | 6% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Marathon City, WI
Last spring frost
May 6
First fall frost
Oct 4
Growing season
150 days
Hardiness zone
4b
Explore more for Marathon City, WI: full frost dates · planting calendar · Wisconsin frost dates
Climate data from the nearest NOAA station, Wausau Dwtn Ap, Wi (10.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.