Vernon, WI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Vernon, a village in Waukesha County, Wisconsin.
This Afternoon
70°F
Light Rain Likely
Rain before 3pm, then rain likely and a slight chance of thunderstorms. Cloudy, with a high near 70. South wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 100%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Vernon
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 70°F | Light Rain Likely | 15 to 20 mph S | 95% |
| Tonight | 57°F | Light Rain | 10 to 15 mph S | 88% |
| Wednesday | 63°F | Light Rain Likely | 10 to 15 mph S | 73% |
| Wednesday Night | 46°F | Chance Light Rain | 10 to 15 mph SW | 36% |
| Thursday | 55°F | Light Rain Likely | 10 to 15 mph W | 65% |
| Thursday Night | 39°F | Light Rain Likely | 5 to 10 mph NW | 55% |
| Friday | 50°F | Slight Chance Light Rain | 10 to 15 mph N | 23% |
| Friday Night | 33°F | Mostly Cloudy | 0 to 10 mph N | 4% |
| Saturday | 51°F | Mostly Sunny | 0 to 5 mph W | 1% |
| Saturday Night | 33°F | Partly Cloudy | 0 to 5 mph W | 7% |
| Sunday | 57°F | Slight Chance Light Rain | 5 to 10 mph W | 19% |
| Sunday Night | 34°F | Mostly Clear | 5 mph W | 5% |
| Monday | 59°F | Mostly Sunny | 5 to 15 mph SW | 2% |
| Monday Night | 39°F | Partly Cloudy | 5 to 10 mph W | 2% |
Forecast source: National Weather Service (api.weather.gov) for Vernon (42.879, -88.267). Updated through the day.
Growing snapshot for Vernon
Last spring frost
May 1
First fall frost
Oct 13
Growing season
162 days
Hardiness zone
5b
More local growing data for Vernon: nearby ZIP 53103 weather · frost dates · planting calendar · Wisconsin frost dates
Nearby towns & communities
Big Bend
Brookfield
Butler
Chenequa
Delafield
Dousman
Eagle
Elm Grove
Hartland
Lac La Belle
Lannon
Menomonee Falls
Merton
Mukwonago
Muskego
Nashotah
New Berlin
North Lake
North Prairie
Oconomowoc
Oconomowoc Lake
Okauchee Lake
Pewaukee
Pewaukee
Potter Lake
Summit
Sussex
Wales
Waukesha
Waukesha
Climate data from the nearest NOAA station, Waukesha Wwtp, Wi (8.8 mi from Vernon). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.