Butternut, WI Weather & Growing Conditions
Today
59°F
Slight Chance Rain Showers then Patchy Fog
A slight chance of rain showers before 8am, then patchy fog and a slight chance of rain showers between 8am and 1pm, then a chance of rain showers and patchy fog between 1pm and 5pm, then patchy fog and a slight chance of rain showers. Cloudy, with a high near 59. East 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 | 59°F | Slight Chance Rain Showers then Patchy Fog | 5 mph E | 25% |
| Tonight | 46°F | Patchy Fog | 0 to 5 mph NE | 16% |
| Sunday | 63°F | Partly Sunny | 5 to 10 mph NE | 2% |
| Sunday Night | 36°F | Mostly Cloudy | 5 mph NE | 0% |
| Monday | 61°F | Partly Sunny | 5 mph E | 0% |
| Monday Night | 36°F | Partly Cloudy | 0 to 5 mph E | 0% |
| Tuesday | 65°F | Sunny | 0 to 5 mph E | 0% |
| Tuesday Night | 34°F | Mostly Clear | 0 to 5 mph E | 0% |
| Wednesday | 68°F | Sunny | 0 to 5 mph SE | 0% |
| Wednesday Night | 37°F | Mostly Clear | 0 mph | 1% |
| Thursday | 69°F | Mostly Sunny | 0 to 5 mph SE | 3% |
| Thursday Night | 40°F | Partly Cloudy | 0 mph | 4% |
| Friday | 72°F | Mostly Sunny | 0 to 5 mph SE | 3% |
| Friday Night | 42°F | Partly Cloudy | 0 mph | 5% |
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 Sep 19, 2026.