Butternut, WI Weather & Growing Conditions
Today
75°F
Chance Rain Showers then Partly Sunny
A chance of rain showers before 10am. Partly sunny. High near 75, with temperatures falling to around 73 in the afternoon. Northwest wind around 5 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 75°F | Chance Rain Showers then Partly Sunny | 5 mph NW | 31% |
| Tonight | 48°F | Partly Cloudy | 0 to 5 mph NW | 4% |
| Wednesday | 74°F | Sunny | 0 to 5 mph W | 0% |
| Wednesday Night | 51°F | Mostly Clear | 0 to 5 mph SW | 0% |
| Thursday | 80°F | Sunny | 5 to 10 mph SW | 1% |
| Thursday Night | 58°F | Mostly Clear | 5 to 10 mph SW | 4% |
| Friday | 83°F | Sunny then Slight Chance Showers And Thunderstorms | 5 to 10 mph SW | 16% |
| Friday Night | 58°F | Chance Showers And Thunderstorms | 5 mph SW | 31% |
| Saturday | 80°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph SW | 22% |
| Saturday Night | 57°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 0 to 5 mph W | 50% |
| Sunday | 78°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 0 to 5 mph W | 45% |
| Sunday Night | 55°F | Chance Showers And Thunderstorms | 0 to 5 mph N | 26% |
| Monday | 77°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 0 to 5 mph N | 22% |
| Monday Night | 55°F | Slight Chance Showers And Thunderstorms | 0 to 5 mph N | 23% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Butternut, WI
Last spring frost
May 22
First fall frost
Sep 24
Growing season
126 days
Hardiness zone
4a
Explore more for Butternut, WI: full frost dates · planting calendar · Wisconsin frost dates
Climate data from the nearest NOAA station, Butternut 3Sw, Wi (4.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.