French Island, WI Weather & Growing Conditions
Tonight
54°F
Rain Showers
Rain showers. Cloudy. Low around 54, with temperatures rising to around 58 overnight. Southeast wind around 9 mph, with gusts as high as 22 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 54°F | Rain Showers | 9 mph SE | 97% |
| Wednesday | 58°F | Rain Showers | 8 to 13 mph S | 89% |
| Wednesday Night | 46°F | Rain Showers | 13 mph SW | 84% |
| Thursday | 50°F | Rain Showers Likely | 13 mph NW | 72% |
| Thursday Night | 38°F | Mostly Cloudy | 9 to 14 mph N | 10% |
| Friday | 49°F | Partly Sunny | 3 to 9 mph N | 2% |
| Friday Night | 31°F | Partly Cloudy | 1 mph N | 1% |
| Saturday | 53°F | Mostly Sunny | 0 to 3 mph W | 0% |
| Saturday Night | 35°F | Partly Cloudy | 2 mph W | 9% |
| Sunday | 58°F | Mostly Sunny | 2 to 7 mph W | 14% |
| Sunday Night | 36°F | Mostly Clear | 3 mph SW | 4% |
| Monday | 61°F | Mostly Sunny | 3 to 9 mph SW | 0% |
| Monday Night | 40°F | Partly Cloudy | 5 mph W | 1% |
| Tuesday | 59°F | Sunny | 6 mph W | 1% |
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 Nov 4, 2026.