Clam Lake, WI Weather & Growing Conditions

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

This Afternoon

62°F

Chance Rain Showers

A chance of rain showers. Cloudy. High near 62, with temperatures falling to around 60 in the afternoon. Southeast wind around 5 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.

7-day forecast for Clam Lake

When	Temp	Forecast	Wind	Precip
This Afternoon	62°F	Chance Rain Showers	5 mph SE	38%
Tonight	47°F	Chance Rain Showers	5 mph SE	43%
Saturday	64°F	Chance Drizzle then Slight Chance Rain Showers	5 mph E	26%
Saturday Night	45°F	Mostly Cloudy then Patchy Fog	0 to 5 mph NE	14%
Sunday	62°F	Mostly Cloudy	5 to 10 mph NE	0%
Sunday Night	35°F	Mostly Cloudy	0 to 10 mph NE	0%
Monday	64°F	Partly Sunny	0 to 5 mph NE	0%
Monday Night	35°F	Partly Cloudy	0 to 5 mph NE	0%
Tuesday	66°F	Mostly Sunny	0 to 5 mph E	1%
Tuesday Night	36°F	Mostly Clear	0 to 5 mph E	1%
Wednesday	68°F	Sunny	0 to 5 mph SE	0%
Wednesday Night	40°F	Partly Cloudy	0 mph	2%
Thursday	70°F	Partly Sunny	0 to 5 mph S	7%
Thursday Night	43°F	Partly Cloudy	0 mph	7%

Forecast source: National Weather Service (api.weather.gov) for Clam Lake (46.154, -90.906). Updated through the day.

Growing snapshot for Clam Lake

Last spring frost

May 16

First fall frost

Sep 30

Growing season

136 days

Hardiness zone

More local growing data for Clam Lake: nearby ZIP 54517 weather · frost dates · planting calendar · Wisconsin frost dates

Nearby towns & communities

Ashland Bayfront Butternut Diaperville Franks Field Glidden Jolmaville Marengo Mellen New Odanah Odanah Park Falls

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Climate data from the nearest NOAA station, Clam Lake 4W, Wi (4 mi from Clam Lake). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.