Clam Lake, WI Weather & Growing Conditions
Tonight
47°F
Chance Rain Showers
A chance of rain showers before 11pm, then a chance of rain showers and patchy fog between 11pm and 4am, then a chance of drizzle. Cloudy, with a low around 47. Southeast wind 0 to 5 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 47°F | Chance Rain Showers | 0 to 5 mph SE | 45% |
| Saturday | 64°F | Chance Drizzle then Slight Chance Rain Showers | 5 mph E | 25% |
| Saturday Night | 45°F | Slight Chance Rain Showers then Patchy Fog | 0 to 5 mph NE | 15% |
| Sunday | 63°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 | 8% |
| Thursday Night | 43°F | Partly Cloudy | 0 mph | 8% |
| Friday | 72°F | Mostly Sunny | 0 to 5 mph NW | 3% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Clam Lake, WI
Last spring frost
May 16
First fall frost
Sep 30
Growing season
136 days
Hardiness zone
4a
Explore more for Clam Lake, WI: full frost dates · planting calendar · Wisconsin frost dates
Climate data from the nearest NOAA station, Clam Lake 4W, Wi (4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.