Union, AL Weather & Growing Conditions
Today
99°F
Sunny then Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 1pm. Sunny, with a high near 99. Heat index values as high as 105. North wind around 0 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 99°F | Sunny then Chance Showers And Thunderstorms | 0 mph | 37% |
| Tonight | 72°F | Chance Showers And Thunderstorms then Mostly Clear | 0 mph | 37% |
| Sunday | 97°F | Sunny | 0 mph | 12% |
| Sunday Night | 71°F | Mostly Clear | 0 mph | 12% |
| Monday | 96°F | Sunny then Slight Chance Showers And Thunderstorms | 0 mph | 17% |
| Monday Night | 70°F | Chance Showers And Thunderstorms | 0 mph | 47% |
| Tuesday | 94°F | Chance Showers And Thunderstorms | 0 mph | 39% |
| Tuesday Night | 69°F | Chance Showers And Thunderstorms | 0 to 5 mph NE | 28% |
| Wednesday | 90°F | Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph N | 16% |
| Wednesday Night | 66°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 5 mph NE | 16% |
| Thursday | 87°F | Sunny | 5 mph N | 6% |
| Thursday Night | 64°F | Mostly Clear | 5 mph NE | 6% |
| Friday | 87°F | Mostly Sunny | 5 mph NE | 3% |
| Friday Night | 63°F | Partly Cloudy | 5 mph NE | 3% |
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 (13.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.