Delafield, WI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Delafield, a city in Waukesha County, Wisconsin.
Today
84°F
Mostly Sunny
Mostly sunny, with a high near 84. Southwest wind around 10 mph. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Delafield
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 84°F | Mostly Sunny | 10 mph SW | 6% |
| Tonight | 65°F | Chance Showers And Thunderstorms then Showers And Thunderstorms | 0 to 5 mph W | 82% |
| Wednesday | 74°F | Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 0 to 5 mph W | 76% |
| Wednesday Night | 58°F | Chance Showers And Thunderstorms | 0 to 5 mph NE | 28% |
| Thursday | 78°F | Mostly Sunny | 0 to 5 mph E | 8% |
| Thursday Night | 59°F | Mostly Clear | 0 to 5 mph SE | 8% |
| Friday | 81°F | Sunny | 0 to 5 mph SW | 1% |
| Friday Night | 62°F | Mostly Clear | 0 to 5 mph SW | 6% |
| Saturday | 83°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 to 10 mph SW | 15% |
| Saturday Night | 67°F | Slight Chance Showers And Thunderstorms | 5 mph SW | 29% |
| Sunday | 84°F | Chance Showers And Thunderstorms | 5 to 10 mph SW | 29% |
| Sunday Night | 66°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 5 to 10 mph SW | 51% |
| Monday | 82°F | Chance Rain Showers | 5 mph S | 44% |
| Monday Night | 66°F | Chance Showers And Thunderstorms | 5 mph NW | 44% |
Forecast source: National Weather Service (api.weather.gov) for Delafield (43.067, -88.389). Updated through the day.
Growing snapshot for Delafield
Last spring frost
Apr 30
First fall frost
Oct 12
Growing season
164 days
Hardiness zone
5b
More local growing data for Delafield: nearby ZIP 53018 weather · frost dates · planting calendar · Wisconsin frost dates
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Climate data from the nearest NOAA station, Oconomowoc Wwtp, Wi (6.7 mi from Delafield). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.