Waukesha, WI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Waukesha, a village in Waukesha County, Wisconsin.
Overnight
58°F
Chance Rain Showers
A chance of rain showers. Mostly cloudy, with a low around 58. South wind around 10 mph, with gusts as high as 30 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Waukesha
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 58°F | Chance Rain Showers | 10 mph S | 52% |
| Wednesday | 63°F | Chance Rain Showers | 10 to 15 mph SW | 29% |
| Wednesday Night | 45°F | Cloudy then Slight Chance Rain Showers | 10 to 15 mph SW | 24% |
| Thursday | 55°F | Chance Rain Showers then Chance Light Rain | 10 to 15 mph W | 52% |
| Thursday Night | 38°F | Chance Light Rain then Cloudy | 10 mph N | 35% |
| Friday | 48°F | Mostly Cloudy | 10 to 15 mph N | 9% |
| Friday Night | 31°F | Partly Cloudy | 0 to 5 mph N | 1% |
| Saturday | 49°F | Sunny | 0 to 5 mph NW | 0% |
| Saturday Night | 33°F | Partly Cloudy | 0 to 5 mph W | 2% |
| Sunday | 54°F | Sunny | 5 to 10 mph W | 7% |
| Sunday Night | 34°F | Mostly Clear | 0 to 5 mph W | 1% |
| Monday | 59°F | Mostly Sunny | 0 to 10 mph SW | 0% |
| Monday Night | 40°F | Partly Cloudy | 5 to 10 mph W | 1% |
| Tuesday | 59°F | Sunny | 5 to 10 mph NW | 2% |
Forecast source: National Weather Service (api.weather.gov) for Waukesha (42.960, -88.249). Updated through the day.
Growing snapshot for Waukesha
Last spring frost
May 1
First fall frost
Oct 13
Growing season
162 days
Hardiness zone
5b
More local growing data for Waukesha: nearby ZIP 53189 weather · frost dates · planting calendar · Wisconsin frost dates
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Waukesha
Climate data from the nearest NOAA station, Waukesha Wwtp, Wi (4.8 mi from Waukesha). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.