Big Falls, WI Weather & Growing Conditions
Today
82°F
Mostly Cloudy then Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms between 3pm and 4pm. Mostly cloudy. High near 82, with temperatures falling to around 80 in the afternoon. Heat index values as high as 84. West southwest wind 7 to 12 mph, with gusts as high as 18 mph. Chance of precipitation is 20%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 82°F | Mostly Cloudy then Slight Chance Showers And Thunderstorms | 7 to 12 mph WSW | 15% |
| Tonight | 59°F | Slight Chance Showers And Thunderstorms | 2 to 7 mph W | 27% |
| Wednesday | 81°F | Partly Sunny | 1 to 5 mph NNW | 8% |
| Wednesday Night | 54°F | Partly Cloudy | 0 to 5 mph W | 0% |
| Thursday | 84°F | Mostly Sunny | 0 to 6 mph SW | 0% |
| Thursday Night | 59°F | Mostly Clear | 5 mph SSW | 0% |
| Friday | 86°F | Sunny | 2 to 10 mph SW | 6% |
| Friday Night | 64°F | Slight Chance Showers And Thunderstorms | 5 to 9 mph SW | 16% |
| Saturday | 87°F | Mostly Sunny | 5 to 9 mph SW | 12% |
| Saturday Night | 66°F | Chance Showers And Thunderstorms | 2 to 8 mph SW | 37% |
| Sunday | 87°F | Chance Showers And Thunderstorms | 2 to 8 mph W | 37% |
| Sunday Night | 63°F | Chance Showers And Thunderstorms | 2 to 8 mph NW | 38% |
| Monday | 84°F | Chance Showers And Thunderstorms | 2 to 7 mph SSE | 31% |
| Monday Night | 62°F | Chance Showers And Thunderstorms | 2 to 7 mph N | 35% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Big Falls, WI
Last spring frost
May 4
First fall frost
Oct 6
Growing season
154 days
Hardiness zone
5a
Explore more for Big Falls, WI: full frost dates · planting calendar · Wisconsin frost dates
Climate data from the nearest NOAA station, Clintonville, Wi (13.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.