Reserve, WI Weather & Growing Conditions
Tonight
54°F
Rain
Rain and a slight chance of thunderstorms. Cloudy. Low around 54, with temperatures rising to around 56 overnight. Northeast wind around 5 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 54°F | Rain | 5 mph NE | 82% |
| Wednesday | 58°F | Rain Likely | 5 mph E | 73% |
| Wednesday Night | 41°F | Light Rain | 5 to 10 mph N | 79% |
| Thursday | 45°F | Light Rain | 10 to 15 mph N | 76% |
| Thursday Night | 30°F | Slight Chance Light Rain then Mostly Cloudy | 5 to 15 mph NE | 16% |
| Friday | 43°F | Partly Sunny | 0 to 5 mph NE | 4% |
| Friday Night | 25°F | Partly Cloudy | 0 mph | 0% |
| Saturday | 47°F | Mostly Sunny | 0 to 5 mph SW | 1% |
| Saturday Night | 31°F | Partly Cloudy | 0 to 5 mph W | 13% |
| Sunday | 52°F | Mostly Sunny | 5 to 10 mph W | 14% |
| Sunday Night | 32°F | Partly Cloudy | 0 to 5 mph SW | 4% |
| Monday | 54°F | Mostly Sunny | 5 to 10 mph SW | 1% |
| Monday Night | 35°F | Mostly Clear | 5 mph W | 1% |
| Tuesday | 51°F | Mostly Sunny | 5 mph W | 0% |
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 Nov 4, 2026.