Tomahawk, WI Weather & Growing Conditions
Today
77°F
Chance Showers And Thunderstorms then Mostly Cloudy
A chance of showers and thunderstorms before 11am. Mostly cloudy, with a high near 77. Heat index values as high as 77. West northwest wind 6 to 9 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 |
|---|---|---|---|---|
| Today | 77°F | Chance Showers And Thunderstorms then Mostly Cloudy | 6 to 9 mph WNW | 26% |
| Tonight | 52°F | Mostly Cloudy then Patchy Fog | 1 to 6 mph NW | 8% |
| Wednesday | 76°F | Patchy Fog then Mostly Sunny | 1 to 5 mph NW | 6% |
| Wednesday Night | 50°F | Partly Cloudy | 3 mph WSW | 0% |
| Thursday | 81°F | Sunny | 1 to 8 mph SW | 0% |
| Thursday Night | 56°F | Mostly Clear | 6 mph SSW | 0% |
| Friday | 82°F | Sunny then Chance Showers And Thunderstorms | 3 to 12 mph SW | 29% |
| Friday Night | 60°F | Chance Showers And Thunderstorms | 5 to 9 mph SW | 34% |
| Saturday | 82°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 to 8 mph SW | 22% |
| Saturday Night | 60°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 2 to 7 mph W | 47% |
| Sunday | 81°F | Chance Showers And Thunderstorms | 2 to 8 mph W | 45% |
| Sunday Night | 57°F | Chance Showers And Thunderstorms | 1 to 6 mph NNW | 32% |
| Monday | 79°F | Chance Showers And Thunderstorms | 2 to 6 mph WNW | 29% |
| Monday Night | 57°F | Chance Showers And Thunderstorms | 2 to 6 mph N | 29% |
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 Aug 4, 2026.