Mosinee, WI Weather & Growing Conditions
Today
79°F
Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms
A chance of rain showers before 10am, then a chance of showers and thunderstorms between 10am and noon, then a slight chance of showers and thunderstorms between noon and 5pm. Mostly cloudy, with a high near 79. Heat index values as high as 79. West southwest wind 7 to 12 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 79°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 7 to 12 mph WSW | 41% |
| Tonight | 57°F | Slight Chance Rain Showers | 3 to 7 mph NW | 15% |
| Wednesday | 77°F | Mostly Sunny | 3 to 7 mph NW | 2% |
| Wednesday Night | 54°F | Partly Cloudy | 1 to 6 mph NNW | 1% |
| Thursday | 83°F | Sunny | 1 to 7 mph W | 0% |
| Thursday Night | 59°F | Mostly Clear | 7 mph SSW | 0% |
| Friday | 86°F | Sunny | 5 to 12 mph SW | 5% |
| Friday Night | 63°F | Slight Chance Rain Showers | 7 to 10 mph SW | 21% |
| Saturday | 86°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 6 to 12 mph SW | 15% |
| Saturday Night | 64°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 5 to 10 mph WSW | 42% |
| Sunday | 85°F | Chance Showers And Thunderstorms | 5 to 10 mph W | 42% |
| Sunday Night | 61°F | Chance Showers And Thunderstorms | 3 to 9 mph N | 38% |
| Monday | 82°F | Chance Showers And Thunderstorms | 3 to 9 mph S | 30% |
| Monday Night | 61°F | Chance Showers And Thunderstorms | 3 to 9 mph N | 30% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Mosinee, WI
Last spring frost
May 6
First fall frost
Oct 4
Growing season
150 days
Hardiness zone
5a
Explore more for Mosinee, WI: full frost dates · planting calendar · Wisconsin frost dates
Climate data from the nearest NOAA station, Wausau Dwtn Ap, Wi (11.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.