French Island, WI Weather & Growing Conditions
Today
79°F
Mostly Cloudy then Scattered Rain Showers
Scattered rain showers after 3pm. Mostly cloudy. High near 79, with temperatures falling to around 77 in the afternoon. West wind 5 to 8 mph. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 79°F | Mostly Cloudy then Scattered Rain Showers | 5 to 8 mph W | 26% |
| Tonight | 59°F | Scattered Rain Showers | 6 mph W | 38% |
| Wednesday | 77°F | Mostly Sunny | 3 mph NW | 2% |
| Wednesday Night | 55°F | Mostly Clear | 3 mph W | 0% |
| Thursday | 83°F | Sunny | 1 to 5 mph SW | 0% |
| Thursday Night | 60°F | Mostly Clear | 6 mph S | 0% |
| Friday | 85°F | Sunny | 3 to 9 mph S | 6% |
| Friday Night | 64°F | Slight Chance Rain Showers | 3 to 9 mph S | 17% |
| Saturday | 86°F | Slight Chance Rain Showers then Mostly Sunny | 3 to 7 mph SW | 16% |
| Saturday Night | 68°F | Chance Showers And Thunderstorms | 3 to 7 mph SW | 39% |
| Sunday | 86°F | Chance Rain Showers | 5 to 8 mph W | 39% |
| Sunday Night | 66°F | Chance Showers And Thunderstorms | 2 to 6 mph SE | 42% |
| Monday | 84°F | Chance Rain Showers then Slight Chance Showers And Thunderstorms | 5 mph SE | 42% |
| Monday Night | 66°F | Chance Showers And Thunderstorms | 5 mph NE | 29% |
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 Aug 4, 2026.