Muskego, WI Weather & Growing Conditions
This Afternoon
70°F
Light Rain Likely
Rain likely and a slight chance of thunderstorms. Cloudy. High near 70, with temperatures falling to around 64 in the afternoon. South wind around 15 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 70°F | Light Rain Likely | 15 mph S | 60% |
| Tonight | 59°F | Light Rain | 10 to 15 mph S | 88% |
| Wednesday | 64°F | Light Rain Likely | 10 to 15 mph S | 74% |
| Wednesday Night | 46°F | Chance Light Rain | 10 to 15 mph SW | 30% |
| Thursday | 55°F | Light Rain Likely | 10 to 15 mph W | 64% |
| Thursday Night | 39°F | Chance Light Rain | 5 to 10 mph NW | 54% |
| Friday | 50°F | Slight Chance Light Rain | 10 to 15 mph N | 24% |
| Friday Night | 33°F | Mostly Cloudy | 0 to 10 mph NW | 6% |
| Saturday | 51°F | Mostly Sunny | 0 to 5 mph W | 2% |
| Saturday Night | 33°F | Partly Cloudy | 0 to 5 mph W | 7% |
| Sunday | 56°F | Mostly Sunny then Slight Chance Light Rain | 5 to 10 mph W | 19% |
| Sunday Night | 35°F | Partly Cloudy | 5 to 10 mph W | 6% |
| Monday | 59°F | Mostly Sunny | 5 to 15 mph SW | 2% |
| Monday Night | 39°F | Partly Cloudy | 5 to 10 mph W | 3% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Muskego, WI
Last spring frost
May 3
First fall frost
Oct 14
Growing season
162 days
Hardiness zone
5b
Explore more for Muskego, WI: full frost dates · planting calendar · Wisconsin frost dates
Climate data from the nearest NOAA station, Hales Corners/Whitnall Park/Bo, Wi (7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.