Mason, WI Weather & Growing Conditions
Tonight
51°F
Rain
Rain. Cloudy, with a low around 51. Northeast wind around 5 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 51°F | Rain | 5 mph NE | 86% |
| Wednesday | 55°F | Rain | 5 mph N | 77% |
| Wednesday Night | 40°F | Light Rain | 5 to 10 mph N | 92% |
| Thursday | 44°F | Light Rain | 10 to 15 mph N | 89% |
| Thursday Night | 30°F | Cloudy | 5 to 10 mph NE | 13% |
| Friday | 42°F | Partly Sunny | 0 to 5 mph NE | 7% |
| Friday Night | 24°F | Partly Cloudy | 0 mph | 0% |
| Saturday | 49°F | Mostly Sunny | 0 to 5 mph SW | 1% |
| Saturday Night | 32°F | Partly Cloudy | 5 mph SW | 12% |
| Sunday | 53°F | Mostly Sunny | 5 to 10 mph W | 13% |
| Sunday Night | 32°F | Partly Cloudy | 5 mph SW | 4% |
| Monday | 55°F | Partly Sunny | 5 to 15 mph SW | 2% |
| Monday Night | 35°F | Partly Cloudy | 5 to 10 mph W | 2% |
| Tuesday | 51°F | Mostly Sunny | 5 to 10 mph W | 1% |
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 Nov 4, 2026.