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Summit Lake, WI Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Summit Lake, a community in Langlade County, Wisconsin.

Today
59°F
Chance Rain Showers
A chance of rain showers. Cloudy, with a high near 59. East wind 6 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.

7-day forecast for Summit Lake

WhenTempForecastWindPrecip
Today 59°F Chance Rain Showers 6 to 9 mph E 45%
Tonight 48°F Chance Rain Showers then Mostly Cloudy 3 to 7 mph NE 28%
Sunday 63°F Partly Sunny 7 to 12 mph NE 0%
Sunday Night 42°F Mostly Cloudy 6 to 9 mph NE 0%
Monday 60°F Mostly Cloudy 5 to 8 mph ENE 0%
Monday Night 37°F Partly Cloudy 5 mph ENE 0%
Tuesday 62°F Sunny 3 to 8 mph ENE 0%
Tuesday Night 38°F Mostly Clear 6 mph E 1%
Wednesday 66°F Sunny 3 to 7 mph E 1%
Wednesday Night 41°F Mostly Clear then Patchy Fog 1 to 5 mph E 1%
Thursday 67°F Patchy Fog then Sunny 3 mph E 3%
Thursday Night 43°F Partly Cloudy 2 mph ENE 3%
Friday 70°F Mostly Sunny 3 mph E 3%
Friday Night 44°F Partly Cloudy 2 mph SE 3%

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

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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.