Platteville, WI Weather & Growing Conditions
Today
82°F
Partly Sunny then Isolated Showers And Thunderstorms
Isolated rain showers between 3pm and 4pm, then isolated showers and thunderstorms. Partly sunny. High near 82, with temperatures falling to around 77 in the afternoon. Southwest wind 3 to 9 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 82°F | Partly Sunny then Isolated Showers And Thunderstorms | 3 to 9 mph SW | 24% |
| Tonight | 64°F | Scattered Showers And Thunderstorms then Showers And Thunderstorms | 2 to 6 mph NW | 76% |
| Wednesday | 75°F | Chance Showers And Thunderstorms | 5 mph NW | 43% |
| Wednesday Night | 57°F | Slight Chance Showers And Thunderstorms | 3 mph NW | 21% |
| Thursday | 79°F | Slight Chance Rain Showers then Sunny | 3 mph NE | 15% |
| Thursday Night | 60°F | Mostly Clear | 1 mph SE | 1% |
| Friday | 82°F | Sunny | 1 to 7 mph S | 4% |
| Friday Night | 64°F | Mostly Clear | 6 mph S | 7% |
| Saturday | 83°F | Mostly Sunny | 5 to 9 mph SW | 9% |
| Saturday Night | 68°F | Chance Showers And Thunderstorms | 6 to 9 mph S | 29% |
| Sunday | 85°F | Chance Showers And Thunderstorms | 8 to 13 mph SW | 29% |
| Sunday Night | 68°F | Chance Showers And Thunderstorms | 5 to 9 mph S | 44% |
| Monday | 83°F | Chance Rain Showers | 6 to 9 mph S | 44% |
| Monday Night | 68°F | Chance Showers And Thunderstorms | 9 mph NE | 41% |
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 Aug 4, 2026.