Platteville, WI Weather & Growing Conditions
Overnight
53°F
Mostly Cloudy
Mostly cloudy. Low around 53, with temperatures rising to around 56 overnight. South wind around 12 mph, with gusts as high as 21 mph. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 53°F | Mostly Cloudy | 12 mph S | 10% |
| Wednesday | 56°F | Chance Rain Showers | 12 to 15 mph SW | 46% |
| Wednesday Night | 46°F | Chance Rain Showers | 13 mph SW | 43% |
| Thursday | 52°F | Rain Showers Likely | 12 mph NW | 68% |
| Thursday Night | 39°F | Mostly Cloudy then Slight Chance Rain Showers | 10 mph N | 16% |
| Friday | 47°F | Partly Sunny | 3 to 10 mph N | 1% |
| Friday Night | 29°F | Mostly Clear | 2 mph N | 0% |
| Saturday | 50°F | Sunny | 0 to 5 mph NW | 0% |
| Saturday Night | 34°F | Mostly Clear | 3 mph W | 2% |
| Sunday | 55°F | Sunny | 3 to 8 mph W | 4% |
| Sunday Night | 36°F | Mostly Clear | 3 mph W | 0% |
| Monday | 59°F | Mostly Sunny | 2 to 10 mph SW | 0% |
| Monday Night | 40°F | Mostly Clear | 6 mph W | 0% |
| Tuesday | 59°F | Sunny | 5 mph NW | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Platteville, WI
Last spring frost
Apr 30
First fall frost
Oct 13
Growing season
166 days
Hardiness zone
5a
Explore more for Platteville, WI: full frost dates · planting calendar · Wisconsin frost dates
Climate data from the nearest NOAA station, Platteville, Wi (1.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.