Bloomington, WI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Bloomington, a village in Grant County, Wisconsin.
This Afternoon
69°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 4pm, then a chance of showers and thunderstorms between 4pm and 5pm, then a slight chance of showers and thunderstorms. Mostly cloudy, with a high near 69. East wind around 13 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Bloomington
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 69°F | Chance Showers And Thunderstorms | 13 mph E | 27% |
| Tonight | 61°F | Chance Showers And Thunderstorms | 8 to 15 mph E | 90% |
| Saturday | 76°F | Showers And Thunderstorms Likely | 8 mph S | 71% |
| Saturday Night | 58°F | Showers And Thunderstorms | 8 to 12 mph N | 76% |
| Sunday | 67°F | Chance Rain Showers | 15 mph NE | 45% |
| Sunday Night | 53°F | Mostly Cloudy | 12 to 15 mph NE | 13% |
| Monday | 63°F | Chance Rain Showers | 15 mph NE | 41% |
| Monday Night | 48°F | Chance Rain Showers | 9 to 15 mph NE | 41% |
| Tuesday | 61°F | Chance Rain Showers then Partly Sunny | 9 to 13 mph NE | 29% |
| Tuesday Night | 45°F | Partly Cloudy | 3 to 8 mph NE | 7% |
| Wednesday | 66°F | Mostly Sunny | 7 mph NE | 2% |
| Wednesday Night | 49°F | Partly Cloudy | 5 mph E | 2% |
| Thursday | 68°F | Partly Sunny | 2 to 6 mph NE | 5% |
| Thursday Night | 51°F | Partly Cloudy | 3 mph E | 5% |
Forecast source: National Weather Service (api.weather.gov) for Bloomington (42.893, -90.927). Updated through the day.
Growing snapshot for Bloomington
Last spring frost
Apr 27
First fall frost
Oct 11
Growing season
166 days
Hardiness zone
5a
More local growing data for Bloomington: nearby ZIP 53804 weather · frost dates · planting calendar · Wisconsin frost dates
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Dickeyville
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Lancaster
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Montfort
Mount Hope
Muscoda
Patch Grove
Platteville
Potosi
Sandy Hook
Tennyson
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Climate data from the nearest NOAA station, Lancaster 4 Wsw, Wi (6.9 mi from Bloomington). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 18, 2026.