Tomahawk, WI Weather & Growing Conditions
Overnight
49°F
Mostly Cloudy
Mostly cloudy. Low around 49, with temperatures rising to around 51 overnight. North northeast wind 2 to 6 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 49°F | Mostly Cloudy | 2 to 6 mph NNE | 1% |
| Sunday | 67°F | Partly Sunny | 6 to 10 mph NE | 0% |
| Sunday Night | 39°F | Mostly Cloudy | 5 to 8 mph NE | 0% |
| Monday | 62°F | Mostly Cloudy | 7 mph ENE | 0% |
| Monday Night | 36°F | Partly Cloudy then Patchy Frost | 5 mph ENE | 0% |
| Tuesday | 65°F | Patchy Frost then Sunny | 3 to 7 mph ENE | 0% |
| Tuesday Night | 37°F | Clear | 5 mph E | 0% |
| Wednesday | 68°F | Patchy Frost then Sunny | 6 mph E | 0% |
| Wednesday Night | 38°F | Mostly Clear then Patchy Fog | 3 mph ESE | 0% |
| Thursday | 68°F | Patchy Fog then Mostly Sunny | 3 mph SE | 1% |
| Thursday Night | 41°F | Areas Of Fog | 2 mph SE | 1% |
| Friday | 71°F | Areas Of Fog then Mostly Sunny | 1 mph SSW | 1% |
| Friday Night | 43°F | Areas Of Fog | 0 mph | 1% |
| Saturday | 73°F | Areas Of Fog then Mostly Sunny | 0 to 5 mph SSE | 3% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Tomahawk, WI
Last spring frost
May 11
First fall frost
Sep 30
Growing season
139 days
Hardiness zone
4b
Explore more for Tomahawk, WI: full frost dates · planting calendar · Wisconsin frost dates
Climate data from the nearest NOAA station, Merrill, Wi (12.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.