Mason, WI Weather & Growing Conditions
Today
77°F
Mostly Sunny
Mostly sunny, with a high near 77. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 77°F | Mostly Sunny | 5 to 10 mph NW | 6% |
| Tonight | 51°F | Partly Cloudy | 0 to 5 mph W | 1% |
| Wednesday | 78°F | Sunny | 0 to 10 mph SW | 0% |
| Wednesday Night | 56°F | Partly Cloudy | 0 to 5 mph SW | 0% |
| Thursday | 84°F | Sunny | 5 to 15 mph SW | 7% |
| Thursday Night | 63°F | Mostly Clear | 5 to 10 mph SW | 4% |
| Friday | 86°F | Sunny then Slight Chance Showers And Thunderstorms | 10 mph SW | 16% |
| Friday Night | 60°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 0 to 10 mph SW | 26% |
| Saturday | 82°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph W | 18% |
| Saturday Night | 59°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 0 to 5 mph NW | 46% |
| Sunday | 79°F | Chance Showers And Thunderstorms | 0 to 5 mph W | 36% |
| Sunday Night | 56°F | Chance Showers And Thunderstorms | 0 to 5 mph NW | 27% |
| Monday | 79°F | Slight Chance Rain Showers | 0 to 5 mph NW | 22% |
| Monday Night | 56°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 0 to 5 mph N | 20% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Mason, WI
Last spring frost
May 20
First fall frost
Oct 1
Growing season
132 days
Hardiness zone
4b
Explore more for Mason, WI: full frost dates · planting calendar · Wisconsin frost dates
Climate data from the nearest NOAA station, Drummond, Wi (10.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.