Whitewater, WI Weather & Growing Conditions
Tonight
62°F
Showers And Thunderstorms
Showers and thunderstorms. Some of the storms could produce heavy rain. Cloudy, with a low around 62. East wind 10 to 15 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 62°F | Showers And Thunderstorms | 10 to 15 mph E | 93% |
| Saturday | 71°F | Showers And Thunderstorms | 5 to 15 mph SE | 99% |
| Saturday Night | 59°F | Showers And Thunderstorms | 5 to 10 mph NE | 78% |
| Sunday | 65°F | Chance Rain Showers | 10 to 15 mph NE | 42% |
| Sunday Night | 52°F | Mostly Cloudy | 10 to 15 mph NE | 14% |
| Monday | 63°F | Slight Chance Rain Showers | 10 to 15 mph NE | 21% |
| Monday Night | 48°F | Slight Chance Rain Showers | 5 to 15 mph NE | 19% |
| Tuesday | 61°F | Slight Chance Rain Showers then Mostly Cloudy | 10 to 15 mph NE | 16% |
| Tuesday Night | 47°F | Mostly Cloudy | 5 to 10 mph NE | 9% |
| Wednesday | 64°F | Partly Sunny | 5 to 10 mph NE | 7% |
| Wednesday Night | 48°F | Partly Cloudy | 0 to 5 mph NE | 3% |
| Thursday | 66°F | Partly Sunny | 0 to 5 mph NE | 4% |
| Thursday Night | 49°F | Mostly Cloudy | 0 to 5 mph NE | 4% |
| Friday | 69°F | Mostly Sunny | 0 to 5 mph NE | 5% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Whitewater, WI
Last spring frost
May 2
First fall frost
Oct 9
Growing season
157 days
Hardiness zone
5b
Explore more for Whitewater, WI: full frost dates · planting calendar · Wisconsin frost dates
Climate data from the nearest NOAA station, Whitewater, Wi (3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.