Tomah, WI Weather & Growing Conditions
Overnight
55°F
Chance Rain Showers
A chance of rain showers. Mostly cloudy. Low around 55, with temperatures rising to around 57 overnight. South wind around 6 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 55°F | Chance Rain Showers | 6 mph S | 30% |
| Wednesday | 61°F | Rain Showers | 6 to 12 mph S | 77% |
| Wednesday Night | 42°F | Rain Showers | 5 to 8 mph SW | 76% |
| Thursday | 54°F | Rain Showers | 5 to 12 mph NW | 79% |
| Thursday Night | 31°F | Mostly Cloudy | 5 to 8 mph N | 8% |
| Friday | 48°F | Partly Sunny | 1 to 6 mph N | 0% |
| Friday Night | 25°F | Mostly Clear | 0 mph | 0% |
| Saturday | 51°F | Sunny | 0 to 3 mph W | 0% |
| Saturday Night | 30°F | Mostly Clear | 3 mph W | 4% |
| Sunday | 55°F | Sunny | 3 to 8 mph W | 6% |
| Sunday Night | 31°F | Mostly Clear | 2 mph W | 0% |
| Monday | 61°F | Mostly Sunny | 1 to 10 mph SW | 0% |
| Monday Night | 35°F | Partly Cloudy | 5 mph W | 1% |
| Tuesday | 59°F | Sunny | 5 mph NW | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Tomah, WI
Last spring frost
May 6
First fall frost
Oct 3
Growing season
148 days
Hardiness zone
4b
Explore more for Tomah, WI: full frost dates · planting calendar · Wisconsin frost dates
Climate data from the nearest NOAA station, Mather 3 Nw, Wi (15.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.