Mattoon, WI Weather & Growing Conditions
Today
61°F
Rain Showers
Rain showers and patchy fog. Cloudy. High near 61, with temperatures falling to around 55 in the afternoon. South southwest wind around 12 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 61°F | Rain Showers | 12 mph SSW | 86% |
| Tonight | 43°F | Rain Showers | 6 to 9 mph WSW | 77% |
| Thursday | 48°F | Rain Showers Likely | 6 to 16 mph NW | 76% |
| Thursday Night | 30°F | Mostly Cloudy | 9 to 16 mph N | 3% |
| Friday | 44°F | Partly Sunny | 5 to 12 mph N | 1% |
| Friday Night | 24°F | Mostly Clear | 0 to 3 mph N | 0% |
| Saturday | 48°F | Sunny | 0 to 5 mph WNW | 0% |
| Saturday Night | 29°F | Partly Cloudy | 3 to 7 mph W | 5% |
| Sunday | 51°F | Mostly Sunny | 8 to 12 mph WNW | 8% |
| Sunday Night | 30°F | Mostly Clear | 2 to 8 mph W | 0% |
| Monday | 54°F | Mostly Sunny | 2 to 12 mph WSW | 0% |
| Monday Night | 35°F | Partly Cloudy | 8 mph W | 1% |
| Tuesday | 54°F | Mostly Sunny | 6 to 10 mph WNW | 6% |
| Tuesday Night | 31°F | Partly Cloudy | 1 to 5 mph NW | 2% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Mattoon, WI
Last spring frost
May 14
First fall frost
Sep 30
Growing season
139 days
Hardiness zone
4b
Explore more for Mattoon, WI: full frost dates · planting calendar · Wisconsin frost dates
Climate data from the nearest NOAA station, Antigo, Wi (8.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.