Lake Delton, WI Weather & Growing Conditions
Today
81°F
Mostly Cloudy then Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 81. Southwest wind 5 to 10 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 81°F | Mostly Cloudy then Chance Showers And Thunderstorms | 5 to 10 mph SW | 30% |
| Tonight | 61°F | Chance Showers And Thunderstorms | 0 to 5 mph W | 55% |
| Wednesday | 79°F | Areas Of Fog then Partly Sunny | 0 to 5 mph W | 23% |
| Wednesday Night | 54°F | Partly Cloudy | 0 to 5 mph W | 2% |
| Thursday | 81°F | Sunny | 0 to 5 mph S | 2% |
| Thursday Night | 57°F | Mostly Clear | 0 to 5 mph S | 1% |
| Friday | 83°F | Sunny | 0 to 10 mph SW | 2% |
| Friday Night | 62°F | Mostly Clear | 5 to 10 mph SW | 9% |
| Saturday | 85°F | Mostly Sunny | 5 to 10 mph SW | 12% |
| Saturday Night | 66°F | Chance Showers And Thunderstorms | 5 to 10 mph SW | 32% |
| Sunday | 86°F | Chance Showers And Thunderstorms | 5 to 10 mph W | 32% |
| Sunday Night | 64°F | Chance Showers And Thunderstorms | 0 to 10 mph SW | 49% |
| Monday | 83°F | Chance Rain Showers then Slight Chance Showers And Thunderstorms | 5 mph S | 47% |
| Monday Night | 64°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 0 to 5 mph N | 36% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Lake Delton, WI
Last spring frost
May 8
First fall frost
Oct 3
Growing season
146 days
Hardiness zone
5a
Explore more for Lake Delton, WI: full frost dates · planting calendar · Wisconsin frost dates
Climate data from the nearest NOAA station, Wisconsin Dells, Wi (1.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.