French Island, WI Weather & Growing Conditions
Tonight
57°F
Showers And Thunderstorms
Showers and thunderstorms. Cloudy, with a low around 57. East wind 9 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 57°F | Showers And Thunderstorms | 9 to 14 mph E | 98% |
| Saturday | 68°F | Showers And Thunderstorms | 6 to 9 mph E | 75% |
| Saturday Night | 55°F | Rain Showers Likely | 10 mph NE | 67% |
| Sunday | 68°F | Partly Sunny | 12 mph NE | 12% |
| Sunday Night | 49°F | Mostly Cloudy | 9 mph NE | 6% |
| Monday | 63°F | Mostly Cloudy then Chance Rain Showers | 10 mph NE | 32% |
| Monday Night | 45°F | Chance Rain Showers | 3 to 8 mph NE | 32% |
| Tuesday | 62°F | Partly Sunny | 3 to 7 mph NE | 11% |
| Tuesday Night | 44°F | Partly Cloudy | 1 to 5 mph NE | 4% |
| Wednesday | 66°F | Sunny | 3 mph E | 1% |
| Wednesday Night | 48°F | Partly Cloudy | 2 mph E | 3% |
| Thursday | 69°F | Partly Sunny | 2 mph S | 7% |
| Thursday Night | 50°F | Partly Cloudy | 0 mph | 7% |
| Friday | 71°F | Mostly Sunny | 2 mph NE | 3% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for French Island, WI
Last spring frost
Apr 23
First fall frost
Oct 17
Growing season
177 days
Hardiness zone
5a
Explore more for French Island, WI: full frost dates · planting calendar · Wisconsin frost dates
Climate data from the nearest NOAA station, La Crosse Muni Ap, Wi (1.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.