Waupun, WI Weather & Growing Conditions
This Afternoon
67°F
Chance Rain Showers
A chance of rain showers. Cloudy, with a high near 67. East wind around 10 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 67°F | Chance Rain Showers | 10 mph E | 42% |
| Tonight | 56°F | Showers And Thunderstorms | 10 to 15 mph E | 99% |
| Saturday | 67°F | Showers And Thunderstorms | 10 to 15 mph E | 94% |
| Saturday Night | 55°F | Showers And Thunderstorms | 10 mph NE | 77% |
| Sunday | 67°F | Chance Rain Showers | 10 to 15 mph NE | 31% |
| Sunday Night | 48°F | Mostly Cloudy | 10 to 15 mph NE | 10% |
| Monday | 62°F | Mostly Cloudy | 10 to 15 mph NE | 10% |
| Monday Night | 45°F | Mostly Cloudy | 10 mph NE | 11% |
| Tuesday | 61°F | Partly Sunny | 10 to 15 mph NE | 11% |
| Tuesday Night | 44°F | Partly Cloudy | 5 to 10 mph NE | 7% |
| Wednesday | 64°F | Mostly Sunny | 5 to 10 mph NE | 5% |
| Wednesday Night | 46°F | Partly Cloudy | 0 to 5 mph NE | 2% |
| Thursday | 68°F | Mostly Sunny | 0 to 5 mph NE | 2% |
| Thursday Night | 48°F | Partly Cloudy | 0 to 5 mph N | 5% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Waupun, WI
Last spring frost
May 1
First fall frost
Oct 11
Growing season
163 days
Hardiness zone
5a
Explore more for Waupun, WI: full frost dates · planting calendar · Wisconsin frost dates
Climate data from the nearest NOAA station, Town Of Westford, Wi (13.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 18, 2026.