Union Grove, AL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Union Grove, a town in Marshall County, Alabama.
Today
86°F
Mostly Sunny then Chance Showers And Thunderstorms
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 86. North wind 0 to 5 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Union Grove
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 86°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph N | 43% |
| Tonight | 69°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 35% |
| Wednesday | 86°F | Slight Chance Showers And Thunderstorms | 0 mph | 56% |
| Wednesday Night | 70°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 31% |
| Thursday | 88°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 mph S | 23% |
| Thursday Night | 71°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph SSE | 23% |
| Friday | 88°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 mph SSE | 22% |
| Friday Night | 71°F | Slight Chance Showers And Thunderstorms | 0 mph | 22% |
| Saturday | 88°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 0 mph | 45% |
| Saturday Night | 72°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 45% |
| Sunday | 88°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 mph | 39% |
| Sunday Night | 72°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 39% |
| Monday | 88°F | Chance Showers And Thunderstorms | 0 mph | 44% |
| Monday Night | 72°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 44% |
Forecast source: National Weather Service (api.weather.gov) for Union Grove (34.406, -86.452). Updated through the day.
Growing snapshot for Union Grove
Last spring frost
Apr 4
First fall frost
Oct 30
Growing season
210 days
Hardiness zone
8a
More local growing data for Union Grove: nearby ZIP 35175 weather · frost dates · planting calendar · Alabama frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Owens Cross Roads 3S, Al (8.9 mi from Union Grove). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.