Decatur, AL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Decatur, a city in Morgan County, Alabama.
This Afternoon
74°F
Showers And Thunderstorms Likely
Showers and thunderstorms likely before 2pm, then a slight chance of showers and thunderstorms between 2pm and 3pm. Partly sunny, with a high near 74. West southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Decatur
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 74°F | Showers And Thunderstorms Likely | 5 to 10 mph WSW | 58% |
| Tonight | 50°F | Areas Of Fog | 0 mph | 0% |
| Thursday | 70°F | Areas Of Fog then Partly Sunny | 0 mph | 0% |
| Thursday Night | 46°F | Areas Of Fog | 0 mph | 0% |
| Friday | 70°F | Areas Of Fog then Sunny | 0 to 10 mph N | 0% |
| Friday Night | 41°F | Mostly Clear | 5 mph N | 0% |
| Saturday | 60°F | Mostly Sunny | 5 to 10 mph N | 0% |
| Saturday Night | 35°F | Partly Cloudy | 5 mph N | 0% |
| Sunday | 62°F | Sunny | 5 mph NNE | 0% |
| Sunday Night | 35°F | Partly Cloudy | 0 mph | 1% |
| Monday | 64°F | Sunny | 0 to 5 mph NNE | 4% |
| Monday Night | 37°F | Slight Chance Rain Showers then Mostly Clear | 0 mph | 15% |
| Tuesday | 66°F | Mostly Sunny | 0 mph | 2% |
| Tuesday Night | 39°F | Partly Cloudy | 0 mph | 1% |
Forecast source: National Weather Service (api.weather.gov) for Decatur (34.573, -86.990). Updated through the day.
Growing snapshot for Decatur
Last spring frost
Mar 26
First fall frost
Nov 7
Growing season
228 days
Hardiness zone
8a
More local growing data for Decatur: nearby ZIP 35601 weather · frost dates · planting calendar · Alabama frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Decatur 4Se, Al (4.7 mi from Decatur). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.