Bloomington, WI Weather & Growing Conditions
Overnight
58°F
Showers And Thunderstorms
Showers and thunderstorms. Some of the storms could produce heavy rain. Cloudy. Low around 58, with temperatures rising to around 64 overnight. East wind around 5 mph. Chance of precipitation is 100%. New rainfall amounts between 2 and 3 inches possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 58°F | Showers And Thunderstorms | 5 mph E | 100% |
| Saturday | 72°F | Showers And Thunderstorms | 8 mph SE | 97% |
| Saturday Night | 59°F | Showers And Thunderstorms | 5 to 12 mph N | 78% |
| Sunday | 64°F | Chance Rain Showers | 14 mph NE | 51% |
| Sunday Night | 53°F | Mostly Cloudy then Slight Chance Rain Showers | 14 mph NE | 19% |
| Monday | 63°F | Slight Chance Rain Showers | 14 mph NE | 20% |
| Monday Night | 48°F | Slight Chance Rain Showers | 7 to 13 mph NE | 22% |
| Tuesday | 62°F | Slight Chance Rain Showers then Partly Sunny | 7 to 13 mph NE | 22% |
| Tuesday Night | 45°F | Partly Cloudy | 5 to 8 mph NE | 4% |
| Wednesday | 65°F | Mostly Sunny | 8 mph NE | 1% |
| Wednesday Night | 49°F | Partly Cloudy | 5 mph NE | 2% |
| Thursday | 67°F | Mostly Sunny | 2 to 6 mph NE | 6% |
| Thursday Night | 51°F | Partly Cloudy | 3 mph E | 3% |
| Friday | 70°F | Mostly Sunny | 2 to 6 mph E | 4% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Bloomington, WI
Last spring frost
Apr 27
First fall frost
Oct 11
Growing season
166 days
Hardiness zone
5a
Explore more for Bloomington, WI: full frost dates · planting calendar · Wisconsin frost dates
Climate data from the nearest NOAA station, Lancaster 4 Wsw, Wi (5.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.