Campbellsport, WI Weather & Growing Conditions
Today
82°F
Mostly Sunny then Chance Showers And Thunderstorms
A slight chance of rain showers between 3pm and 4pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 82. Southwest wind around 10 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 | 82°F | Mostly Sunny then Chance Showers And Thunderstorms | 10 mph SW | 30% |
| Tonight | 63°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 5 mph W | 73% |
| Wednesday | 75°F | Patchy Fog then Mostly Cloudy | 5 mph W | 49% |
| Wednesday Night | 58°F | Slight Chance Showers And Thunderstorms | 0 to 5 mph SW | 20% |
| Thursday | 79°F | Mostly Sunny | 0 to 5 mph W | 7% |
| Thursday Night | 57°F | Mostly Clear | 0 mph | 7% |
| Friday | 82°F | Sunny | 0 to 10 mph SW | 2% |
| Friday Night | 62°F | Mostly Clear | 5 mph SW | 7% |
| Saturday | 83°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 to 10 mph SW | 15% |
| Saturday Night | 66°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 5 to 10 mph SW | 31% |
| Sunday | 84°F | Chance Showers And Thunderstorms | 5 to 10 mph SW | 31% |
| Sunday Night | 64°F | Chance Showers And Thunderstorms | 5 mph SW | 51% |
| Monday | 82°F | Chance Rain Showers | 5 mph S | 37% |
| Monday Night | 63°F | Chance Showers And Thunderstorms | 5 mph N | 43% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Campbellsport, WI
Last spring frost
Apr 27
First fall frost
Oct 19
Growing season
174 days
Hardiness zone
5a
Explore more for Campbellsport, WI: full frost dates · planting calendar · Wisconsin frost dates
Climate data from the nearest NOAA station, Fond Du Lac 2 Sw, Wi (14.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.