Summit Lake, WI Weather & Growing Conditions
Today
60°F
Rain Showers
Rain showers and areas of fog. Mostly cloudy. High near 60, with temperatures falling to around 55 in the afternoon. South wind around 9 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 60°F | Rain Showers | 9 mph S | 78% |
| Tonight | 42°F | Rain Showers Likely | 8 mph WSW | 74% |
| Thursday | 46°F | Rain Showers Likely | 7 to 16 mph NNW | 70% |
| Thursday Night | 29°F | Mostly Cloudy | 10 to 16 mph N | 2% |
| Friday | 41°F | Partly Sunny | 5 to 12 mph N | 1% |
| Friday Night | 24°F | Partly Cloudy | 0 to 3 mph N | 0% |
| Saturday | 44°F | Sunny | 0 to 5 mph WNW | 0% |
| Saturday Night | 29°F | Partly Cloudy | 3 to 8 mph W | 7% |
| Sunday | 49°F | Mostly Sunny | 7 to 10 mph WNW | 11% |
| Sunday Night | 30°F | Partly Cloudy | 6 mph W | 1% |
| Monday | 52°F | Mostly Sunny | 3 to 10 mph WSW | 0% |
| Monday Night | 34°F | Partly Cloudy | 8 mph W | 2% |
| Tuesday | 51°F | Slight Chance Rain Showers then Mostly Sunny | 5 to 9 mph NW | 15% |
| Tuesday Night | 31°F | Partly Cloudy | 3 mph WNW | 4% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Summit Lake, WI
Last spring frost
Jun 3
First fall frost
Sep 18
Growing season
106 days
Hardiness zone
4b
Explore more for Summit Lake, WI: full frost dates · planting calendar · Wisconsin frost dates
Climate data from the nearest NOAA station, North Pelican, Wi (16.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.