Waukesha, WI Weather & Growing Conditions
This Afternoon
63°F
Cloudy
Cloudy. High near 63, with temperatures falling to around 53 in the afternoon. Southwest wind 10 to 15 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 63°F | Cloudy | 10 to 15 mph SW | 5% |
| Tonight | 45°F | Cloudy then Chance Light Rain | 10 to 15 mph SW | 48% |
| Thursday | 52°F | Light Rain | 10 mph W | 77% |
| Thursday Night | 36°F | Mostly Cloudy | 10 to 15 mph N | 13% |
| Friday | 47°F | Partly Sunny | 10 to 15 mph N | 2% |
| Friday Night | 28°F | Partly Cloudy | 0 to 5 mph N | 0% |
| Saturday | 51°F | Sunny | 0 to 5 mph NW | 0% |
| Saturday Night | 32°F | Mostly Clear | 0 to 5 mph W | 0% |
| Sunday | 57°F | Sunny | 5 to 10 mph W | 1% |
| Sunday Night | 34°F | Mostly Clear | 0 to 5 mph W | 0% |
| Monday | 60°F | Sunny | 0 to 10 mph SW | 0% |
| Monday Night | 39°F | Mostly Clear | 5 to 10 mph W | 0% |
| Tuesday | 60°F | Sunny | 5 mph NW | 0% |
| Tuesday Night | 36°F | Partly Cloudy | 0 to 5 mph NW | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Waukesha, WI
Last spring frost
May 1
First fall frost
Oct 13
Growing season
162 days
Hardiness zone
5b
Explore more for Waukesha, WI: full frost dates · planting calendar · Wisconsin frost dates
Climate data from the nearest NOAA station, Waukesha Wwtp, Wi (4.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.