Tomah, WI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Tomah, a city in Monroe County, Wisconsin.
Today
63°F
Showers And Thunderstorms
Showers and thunderstorms. Cloudy, with a high near 63. East wind around 8 mph, with gusts as high as 18 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for Tomah
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 63°F | Showers And Thunderstorms | 8 mph E | 82% |
| Tonight | 50°F | Showers And Thunderstorms Likely | 7 mph NE | 57% |
| Sunday | 67°F | Partly Sunny | 6 to 12 mph NE | 8% |
| Sunday Night | 43°F | Mostly Cloudy | 8 mph NE | 3% |
| Monday | 63°F | Mostly Cloudy | 6 to 10 mph E | 4% |
| Monday Night | 41°F | Mostly Cloudy | 2 to 7 mph NE | 6% |
| Tuesday | 63°F | Mostly Sunny | 3 to 8 mph E | 6% |
| Tuesday Night | 39°F | Mostly Clear | 0 to 5 mph NE | 2% |
| Wednesday | 67°F | Sunny | 1 to 6 mph E | 1% |
| Wednesday Night | 42°F | Mostly Clear | 2 mph NE | 2% |
| Thursday | 68°F | Mostly Sunny | 0 to 3 mph NE | 5% |
| Thursday Night | 44°F | Partly Cloudy | 1 mph NE | 3% |
| Friday | 71°F | Mostly Sunny | 0 to 3 mph E | 2% |
| Friday Night | 45°F | Partly Cloudy | 1 mph NE | 2% |
Forecast source: National Weather Service (api.weather.gov) for Tomah (43.988, -90.501). Updated through the day.
Growing snapshot for Tomah
Last spring frost
May 6
First fall frost
Oct 3
Growing season
148 days
Hardiness zone
4b
More local growing data for Tomah: nearby ZIP 54660 weather · frost dates · planting calendar · Wisconsin frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Mather 3 Nw, Wi (15.2 mi from Tomah). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.