Casco, WI Weather & Growing Conditions
Today
62°F
Chance Rain Showers
A chance of rain showers. Mostly cloudy. High near 62, with temperatures falling to around 56 in the afternoon. South wind around 14 mph, with gusts as high as 22 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 62°F | Chance Rain Showers | 14 mph S | 27% |
| Tonight | 45°F | Chance Rain Showers | 12 mph SW | 49% |
| Thursday | 52°F | Rain Showers Likely | 9 to 16 mph W | 60% |
| Thursday Night | 34°F | Chance Rain Showers | 16 mph N | 48% |
| Friday | 45°F | Chance Rain Showers | 10 to 16 mph N | 34% |
| Friday Night | 31°F | Mostly Cloudy | 5 to 9 mph N | 1% |
| Saturday | 47°F | Sunny | 3 to 7 mph WNW | 0% |
| Saturday Night | 32°F | Partly Cloudy | 3 to 9 mph W | 5% |
| Sunday | 52°F | Mostly Sunny | 9 to 13 mph W | 8% |
| Sunday Night | 33°F | Mostly Clear | 5 to 8 mph W | 1% |
| Monday | 55°F | Mostly Sunny | 5 to 12 mph WSW | 0% |
| Monday Night | 37°F | Partly Cloudy | 9 mph W | 3% |
| Tuesday | 55°F | Mostly Sunny | 6 to 10 mph WNW | 8% |
| Tuesday Night | 35°F | Partly Cloudy | 5 mph NW | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Casco, WI
Last spring frost
May 1
First fall frost
Oct 18
Growing season
168 days
Hardiness zone
5b
Explore more for Casco, WI: full frost dates · planting calendar · Wisconsin frost dates
Climate data from the nearest NOAA station, Kewaunee, Wi (12 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.