Reserve, WI Weather & Growing Conditions
Tonight
50°F
Chance Rain Showers
A chance of rain showers before 11pm, then a chance of rain showers and patchy fog. Cloudy, with a low around 50. East wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 50°F | Chance Rain Showers | 5 to 10 mph E | 44% |
| Saturday | 63°F | Chance Rain Showers then Cloudy | 5 mph E | 30% |
| Saturday Night | 48°F | Mostly Cloudy | 5 mph NE | 9% |
| Sunday | 67°F | Partly Sunny | 5 to 10 mph NE | 0% |
| Sunday Night | 40°F | Mostly Cloudy | 5 to 10 mph NE | 0% |
| Monday | 64°F | Partly Sunny | 5 mph E | 0% |
| Monday Night | 37°F | Partly Cloudy | 0 to 5 mph E | 1% |
| Tuesday | 65°F | Mostly Sunny | 0 to 5 mph E | 1% |
| Tuesday Night | 38°F | Mostly Clear | 0 mph | 1% |
| Wednesday | 67°F | Sunny | 0 to 5 mph SE | 0% |
| Wednesday Night | 43°F | Partly Cloudy | 0 mph | 3% |
| Thursday | 69°F | Partly Sunny | 0 to 5 mph S | 9% |
| Thursday Night | 45°F | Partly Cloudy | 0 mph | 9% |
| Friday | 71°F | Mostly Sunny | 0 to 5 mph SW | 3% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Reserve, WI
Last spring frost
May 19
First fall frost
Sep 27
Growing season
129 days
Hardiness zone
4a
Explore more for Reserve, WI: full frost dates · planting calendar · Wisconsin frost dates
Climate data from the nearest NOAA station, Winter, Wi (10.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.