Lake Arrowhead, WI Weather & Growing Conditions
Tonight
51°F
Showers And Thunderstorms
Showers and thunderstorms. Some of the storms could produce heavy rain. Cloudy. Low around 51, with temperatures rising to around 53 overnight. East wind 9 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New rainfall amounts between 2 and 3 inches possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 51°F | Showers And Thunderstorms | 9 to 14 mph E | 97% |
| Saturday | 65°F | Showers And Thunderstorms | 9 to 13 mph E | 79% |
| Saturday Night | 50°F | Showers And Thunderstorms Likely | 9 mph NE | 71% |
| Sunday | 68°F | Partly Sunny | 13 mph NE | 8% |
| Sunday Night | 44°F | Mostly Cloudy | 12 mph NE | 1% |
| Monday | 63°F | Mostly Cloudy | 13 mph E | 5% |
| Monday Night | 42°F | Mostly Cloudy | 7 to 10 mph NE | 12% |
| Tuesday | 62°F | Partly Sunny | 7 to 10 mph E | 12% |
| Tuesday Night | 42°F | Partly Cloudy | 3 to 7 mph NE | 3% |
| Wednesday | 66°F | Sunny | 7 mph E | 2% |
| Wednesday Night | 44°F | Partly Cloudy | 1 to 5 mph E | 1% |
| Thursday | 69°F | Mostly Sunny | 3 mph NE | 5% |
| Thursday Night | 46°F | Partly Cloudy | 2 mph E | 5% |
| Friday | 72°F | Mostly Sunny | 1 to 5 mph N | 4% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Lake Arrowhead, WI
Last spring frost
May 8
First fall frost
Oct 1
Growing season
145 days
Hardiness zone
4b
Explore more for Lake Arrowhead, WI: full frost dates · planting calendar · Wisconsin frost dates
Climate data from the nearest NOAA station, Wisconsin Rapids Alexander Fld, Wi (9.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.