Union Grove, WI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Union Grove, a village in Racine County, Wisconsin.
Overnight
59°F
Light Rain
Rain. Cloudy, with a low around 59. South wind 10 to 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 Union Grove
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 59°F | Light Rain | 10 to 15 mph S | 86% |
| Wednesday | 63°F | Chance Light Rain | 10 to 15 mph S | 41% |
| Wednesday Night | 46°F | Cloudy | 15 mph SW | 10% |
| Thursday | 55°F | Chance Light Rain | 10 to 15 mph W | 53% |
| Thursday Night | 38°F | Chance Light Rain then Cloudy | 10 mph NW | 44% |
| Friday | 49°F | Mostly Cloudy | 10 to 15 mph N | 11% |
| Friday Night | 32°F | Partly Cloudy | 5 to 10 mph NW | 1% |
| Saturday | 51°F | Sunny | 5 mph NW | 0% |
| Saturday Night | 33°F | Partly Cloudy | 5 mph W | 1% |
| Sunday | 55°F | Sunny | 5 to 10 mph W | 6% |
| Sunday Night | 34°F | Mostly Clear | 5 to 10 mph W | 1% |
| Monday | 59°F | Mostly Sunny | 5 to 10 mph SW | 0% |
| Monday Night | 39°F | Partly Cloudy | 5 to 10 mph W | 1% |
| Tuesday | 60°F | Sunny | 5 to 10 mph NW | 2% |
Forecast source: National Weather Service (api.weather.gov) for Union Grove (42.686, -88.050). Updated through the day.
Growing snapshot for Union Grove
Last spring frost
May 5
First fall frost
Oct 8
Growing season
156 days
Hardiness zone
5b
More local growing data for Union Grove: nearby ZIP 53182 weather · frost dates · planting calendar · Wisconsin frost dates
Nearby towns & communities
Bohners Lake
Browns Lake
Burlington
Caledonia
Eagle Lake
Elmwood Park
Mount Pleasant
North Bay
Racine
Raymond
Rochester
Sturtevant
Tichigan
Waterford
Wind Point
Yorkville
Climate data from the nearest NOAA station, Union Grove, Wi (0.6 mi from Union Grove). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.