Lake Tomahawk, WI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Lake Tomahawk, a community in Oneida County, Wisconsin.
This Afternoon
64°F
Rain Showers
Rain showers and areas of fog before 3pm, then areas of fog and scattered rain showers. Cloudy, with a high near 64. South wind around 8 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for Lake Tomahawk
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 64°F | Rain Showers | 8 mph S | 84% |
| Tonight | 57°F | Rain Showers | 7 mph SSE | 92% |
| Wednesday | 61°F | Rain Showers | 8 mph SSE | 91% |
| Wednesday Night | 42°F | Rain Showers | 7 mph WSW | 90% |
| Thursday | 45°F | Rain Showers | 8 to 14 mph N | 94% |
| Thursday Night | 29°F | Slight Chance Rain Showers then Cloudy | 9 to 14 mph NNE | 18% |
| Friday | 42°F | Partly Sunny | 5 to 10 mph NNE | 4% |
| Friday Night | 26°F | Partly Cloudy | 2 mph N | 0% |
| Saturday | 46°F | Mostly Sunny | 0 to 5 mph WSW | 1% |
| Saturday Night | 30°F | Partly Cloudy | 5 mph WSW | 12% |
| Sunday | 51°F | Mostly Sunny then Slight Chance Rain Showers | 5 to 9 mph WNW | 15% |
| Sunday Night | 31°F | Partly Cloudy | 2 to 6 mph W | 7% |
| Monday | 52°F | Partly Sunny | 5 to 10 mph SW | 2% |
| Monday Night | 34°F | Partly Cloudy | 8 mph W | 2% |
Forecast source: National Weather Service (api.weather.gov) for Lake Tomahawk (45.809, -89.577). Updated through the day.
Growing snapshot for Lake Tomahawk
Last spring frost
May 19
First fall frost
Oct 3
Growing season
136 days
Hardiness zone
4a
More local growing data for Lake Tomahawk: nearby ZIP 54539 weather · frost dates · planting calendar · Wisconsin frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, St Germain, Wi (8.5 mi from Lake Tomahawk). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.