Lake Delton, WI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Lake Delton, a village in Sauk County, Wisconsin.
Overnight
56°F
Chance Light Rain
A chance of rain. Cloudy, with a low around 56. South wind around 10 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Lake Delton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 56°F | Chance Light Rain | 10 mph S | 27% |
| Wednesday | 59°F | Chance Light Rain | 10 to 15 mph S | 28% |
| Wednesday Night | 45°F | Light Rain Likely | 10 to 15 mph SW | 71% |
| Thursday | 53°F | Light Rain Likely | 10 mph NW | 59% |
| Thursday Night | 36°F | Mostly Cloudy | 5 to 10 mph N | 6% |
| Friday | 48°F | Partly Sunny | 0 to 10 mph N | 2% |
| Friday Night | 28°F | Mostly Clear | 0 mph | 0% |
| Saturday | 51°F | Sunny | 0 to 5 mph W | 0% |
| Saturday Night | 33°F | Mostly Clear | 0 to 5 mph W | 3% |
| Sunday | 56°F | Sunny | 5 to 10 mph W | 5% |
| Sunday Night | 34°F | Mostly Clear | 0 to 5 mph W | 0% |
| Monday | 61°F | Mostly Sunny | 0 to 10 mph SW | 0% |
| Monday Night | 38°F | Mostly Clear | 5 mph W | 0% |
| Tuesday | 60°F | Sunny | 5 mph NW | 1% |
Forecast source: National Weather Service (api.weather.gov) for Lake Delton (43.592, -89.783). Updated through the day.
Growing snapshot for Lake Delton
Last spring frost
May 8
First fall frost
Oct 3
Growing season
146 days
Hardiness zone
5a
More local growing data for Lake Delton: nearby ZIP 53940 weather · frost dates · planting calendar · Wisconsin frost dates
Nearby towns & communities
Baraboo
Bluffview
Ironton
La Valle
Lime Ridge
Loganville
Merrimac
North Freedom
Plain
Prairie du Sac
Reedsburg
Rock Springs
Sauk City
Spring Green
West Baraboo
Climate data from the nearest NOAA station, Wisconsin Dells, Wi (1.8 mi from Lake Delton). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.