Union, AL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Union, a town in Greene County, Alabama.
Today
90°F
Mostly Sunny
Mostly sunny, with a high near 90. Northwest wind 0 to 5 mph.
7-day forecast for Union
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 90°F | Mostly Sunny | 0 to 5 mph NW | 5% |
| Tonight | 72°F | Mostly Clear | 0 mph | 6% |
| Wednesday | 92°F | Sunny | 0 mph | 6% |
| Wednesday Night | 73°F | Mostly Clear | 0 mph | 6% |
| Thursday | 93°F | Sunny | 0 mph | 7% |
| Thursday Night | 73°F | Mostly Clear | 0 mph | 7% |
| Friday | 92°F | Sunny | 0 mph | 11% |
| Friday Night | 73°F | Partly Cloudy | 0 mph | 11% |
| Saturday | 92°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 mph | 19% |
| Saturday Night | 73°F | Slight Chance Showers And Thunderstorms | 0 mph | 19% |
| Sunday | 92°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 mph | 26% |
| Sunday Night | 73°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 26% |
| Monday | 91°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 mph | 29% |
| Monday Night | 74°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 29% |
Forecast source: National Weather Service (api.weather.gov) for Union (32.994, -87.907). Updated through the day.
Growing snapshot for Union
Last spring frost
Mar 19
First fall frost
Nov 8
Growing season
239 days
Hardiness zone
8b
More local growing data for Union: nearby ZIP 35462 weather · frost dates · planting calendar · Alabama frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Gainesville Lock, Al (13.2 mi from Union). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.