Union, AL Weather & Growing Conditions
Tonight
65°F
Showers And Thunderstorms
Showers and thunderstorms. Cloudy, with a low around 65. Southeast wind around 5 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 65°F | Showers And Thunderstorms | 5 mph SE | 81% |
| Wednesday | 78°F | Showers And Thunderstorms | 0 to 5 mph W | 78% |
| Wednesday Night | 54°F | Partly Cloudy | 0 mph | 9% |
| Thursday | 78°F | Mostly Sunny | 0 mph | 3% |
| Thursday Night | 52°F | Partly Cloudy | 0 mph | 4% |
| Friday | 76°F | Sunny | 0 to 5 mph N | 4% |
| Friday Night | 47°F | Mostly Clear | 5 mph N | 1% |
| Saturday | 69°F | Mostly Sunny | 5 mph N | 0% |
| Saturday Night | 41°F | Partly Cloudy | 0 to 5 mph N | 3% |
| Sunday | 66°F | Mostly Sunny | 5 mph NW | 7% |
| Sunday Night | 39°F | Mostly Clear | 0 to 5 mph NW | 4% |
| Monday | 69°F | Sunny | 0 to 5 mph NW | 1% |
| Monday Night | 39°F | Clear | 0 to 5 mph N | 0% |
| Tuesday | 71°F | Sunny | 0 to 5 mph NW | 2% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Union, AL
Last spring frost
Mar 12
First fall frost
Nov 15
Growing season
250 days
Hardiness zone
8b
Explore more for Union, AL: full frost dates · planting calendar · Alabama frost dates
Climate data from the nearest NOAA station, Tuscaloosa Acfd, Al (17.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.