Decatur, AL Weather & Growing Conditions
Today
88°F
Mostly Sunny then Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 88. North wind 0 to 5 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 88°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph N | 28% |
| Tonight | 70°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 24% |
| Wednesday | 89°F | Chance Showers And Thunderstorms | 0 mph | 48% |
| Wednesday Night | 71°F | Chance Showers And Thunderstorms then Mostly Clear | 0 mph | 30% |
| Thursday | 91°F | Sunny | 0 to 5 mph S | 11% |
| Thursday Night | 72°F | Partly Cloudy | 0 to 5 mph SSE | 11% |
| Friday | 91°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph SSE | 17% |
| Friday Night | 72°F | Slight Chance Showers And Thunderstorms | 0 to 5 mph SSE | 17% |
| Saturday | 90°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 0 mph | 35% |
| Saturday Night | 72°F | Chance Showers And Thunderstorms | 0 mph | 35% |
| Sunday | 90°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 mph | 30% |
| Sunday Night | 73°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 30% |
| Monday | 90°F | Chance Showers And Thunderstorms | 0 to 5 mph SSW | 32% |
| Monday Night | 73°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 32% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Decatur, AL
Last spring frost
Mar 26
First fall frost
Nov 7
Growing season
228 days
Hardiness zone
8a
Explore more for Decatur, AL: full frost dates · planting calendar · Alabama frost dates
Climate data from the nearest NOAA station, Decatur 4Se, Al (3.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.