Bloomington, WI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Bloomington, a village in Grant County, Wisconsin.
This Afternoon
67°F
Showers And Thunderstorms
Showers and thunderstorms. Mostly cloudy. High near 67, with temperatures falling to around 65 in the afternoon. South wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Bloomington
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 67°F | Showers And Thunderstorms | 15 mph S | 86% |
| Tonight | 51°F | Showers And Thunderstorms | 9 to 13 mph S | 89% |
| Wednesday | 55°F | Rain Showers Likely | 10 to 16 mph SW | 56% |
| Wednesday Night | 44°F | Rain Showers Likely | 13 to 16 mph SW | 68% |
| Thursday | 51°F | Rain Showers | 13 mph W | 77% |
| Thursday Night | 39°F | Slight Chance Rain Showers then Mostly Cloudy | 12 mph N | 18% |
| Friday | 48°F | Partly Sunny | 5 to 10 mph N | 4% |
| Friday Night | 31°F | Partly Cloudy | 2 mph NW | 1% |
| Saturday | 52°F | Mostly Sunny | 1 to 6 mph W | 1% |
| Saturday Night | 34°F | Mostly Clear | 5 mph W | 4% |
| Sunday | 58°F | Sunny | 5 to 9 mph W | 13% |
| Sunday Night | 35°F | Mostly Clear | 6 mph SW | 4% |
| Monday | 59°F | Mostly Sunny | 5 to 12 mph SW | 1% |
| Monday Night | 39°F | Mostly Clear | 7 mph W | 1% |
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
Nearby towns & communities
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Dickeyville
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Kieler
Lancaster
Livingston
Montfort
Mount Hope
Muscoda
Patch Grove
Platteville
Potosi
Sandy Hook
Tennyson
Woodman
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 Nov 4, 2026.