Blue Mounds, WI Weather & Growing Conditions
Tonight
60°F
Showers And Thunderstorms
Showers and thunderstorms. Some of the storms could produce heavy rain. Cloudy, with a low around 60. East wind 10 to 15 mph. Chance of precipitation is 100%. New rainfall amounts between 2 and 3 inches possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 60°F | Showers And Thunderstorms | 10 to 15 mph E | 97% |
| Saturday | 71°F | Showers And Thunderstorms | 5 to 10 mph SE | 92% |
| Saturday Night | 58°F | Showers And Thunderstorms | 5 to 10 mph NE | 78% |
| Sunday | 66°F | Chance Rain Showers then Partly Sunny | 15 mph NE | 28% |
| Sunday Night | 53°F | Mostly Cloudy | 15 mph NE | 6% |
| Monday | 63°F | Chance Rain Showers | 10 to 15 mph NE | 34% |
| Monday Night | 49°F | Chance Rain Showers | 10 mph NE | 34% |
| Tuesday | 62°F | Chance Rain Showers then Partly Sunny | 10 mph NE | 32% |
| Tuesday Night | 47°F | Partly Cloudy | 5 to 10 mph NE | 8% |
| Wednesday | 66°F | Mostly Sunny | 5 to 10 mph NE | 5% |
| Wednesday Night | 49°F | Partly Cloudy | 0 to 5 mph NE | 1% |
| Thursday | 69°F | Mostly Sunny | 0 to 5 mph NE | 7% |
| Thursday Night | 51°F | Partly Cloudy | 0 to 5 mph NE | 6% |
| Friday | 70°F | Mostly Sunny | 0 to 5 mph NE | 3% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Blue Mounds, WI
Last spring frost
May 7
First fall frost
Oct 1
Growing season
148 days
Hardiness zone
5a
Explore more for Blue Mounds, WI: full frost dates · planting calendar · Wisconsin frost dates
Climate data from the nearest NOAA station, Mazomanie Wwtp, Wi (7.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.