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
61°F
Mostly Clear
Mostly clear, with a low around 61. Southwest wind around 5 mph.
7-day forecast for Union Grove
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 61°F | Mostly Clear | 5 mph SW | 0% |
| Tuesday | 84°F | Mostly Sunny | 5 to 10 mph SW | 3% |
| Tuesday Night | 66°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 5 to 10 mph SW | 81% |
| Wednesday | 75°F | Showers And Thunderstorms | 5 mph W | 77% |
| Wednesday Night | 61°F | Showers And Thunderstorms Likely | 0 to 5 mph NW | 58% |
| Thursday | 77°F | Chance Rain Showers then Partly Sunny | 0 to 5 mph NE | 35% |
| Thursday Night | 58°F | Partly Cloudy | 0 to 5 mph S | 12% |
| Friday | 80°F | Mostly Sunny | 0 to 5 mph SW | 2% |
| Friday Night | 61°F | Mostly Clear | 5 mph S | 7% |
| Saturday | 82°F | Sunny then Slight Chance Showers And Thunderstorms | 5 to 10 mph SW | 15% |
| Saturday Night | 66°F | Slight Chance Showers And Thunderstorms | 5 to 10 mph SW | 26% |
| Sunday | 84°F | Chance Showers And Thunderstorms | 10 to 15 mph SW | 26% |
| Sunday Night | 65°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 5 to 10 mph SW | 48% |
| Monday | 82°F | Chance Rain Showers | 5 to 10 mph S | 46% |
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 Aug 4, 2026.