Summit Lake, WI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Summit Lake, a community in Langlade County, Wisconsin.
Overnight
51°F
Chance Rain Showers
A chance of rain showers. Cloudy, with a low around 51. East southeast wind around 7 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Summit Lake
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 51°F | Chance Rain Showers | 7 mph ESE | 40% |
| Saturday | 60°F | Rain Showers Likely | 9 mph E | 63% |
| Saturday Night | 46°F | Chance Rain Showers then Mostly Cloudy | 6 mph NE | 49% |
| Sunday | 67°F | Partly Sunny | 7 to 10 mph NE | 2% |
| Sunday Night | 42°F | Mostly Cloudy | 9 mph NE | 0% |
| Monday | 61°F | Partly Sunny | 8 mph ENE | 1% |
| Monday Night | 38°F | Partly Cloudy | 6 mph ENE | 1% |
| Tuesday | 62°F | Mostly Sunny | 3 to 8 mph ENE | 2% |
| Tuesday Night | 40°F | Mostly Clear | 5 mph ENE | 2% |
| Wednesday | 65°F | Sunny | 2 to 6 mph E | 2% |
| Wednesday Night | 43°F | Partly Cloudy then Patchy Fog | 0 to 3 mph ENE | 2% |
| Thursday | 69°F | Patchy Fog then Mostly Sunny | 3 mph SE | 5% |
| Thursday Night | 45°F | Partly Cloudy | 1 mph W | 8% |
| Friday | 71°F | Mostly Sunny | 3 mph NW | 6% |
Forecast source: National Weather Service (api.weather.gov) for Summit Lake (45.377, -89.199). Updated through the day.
Growing snapshot for Summit Lake
Last spring frost
Jun 3
First fall frost
Sep 18
Growing season
106 days
Hardiness zone
4b
More local growing data for Summit Lake: nearby ZIP 54485 weather · frost dates · planting calendar · Wisconsin frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, North Pelican, Wi (16.8 mi from Summit Lake). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.