Dayton, AL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Dayton, a town in Marengo County, Alabama.
Today
90°F
Sunny
Sunny, with a high near 90. Northwest wind around 5 mph.
7-day forecast for Dayton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 90°F | Sunny | 5 mph NW | 6% |
| Tonight | 71°F | Partly Cloudy | 0 mph | 7% |
| Wednesday | 91°F | Sunny | 0 mph | 4% |
| Wednesday Night | 72°F | Mostly Clear | 0 mph | 4% |
| Thursday | 92°F | Mostly Sunny | 0 to 5 mph S | 7% |
| Thursday Night | 73°F | Partly Cloudy | 0 mph | 7% |
| Friday | 91°F | Sunny | 0 to 5 mph SE | 11% |
| Friday Night | 73°F | Partly Cloudy | 0 mph | 14% |
| Saturday | 92°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph SE | 18% |
| Saturday Night | 73°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 18% |
| Sunday | 91°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph SE | 30% |
| Sunday Night | 73°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 30% |
| Monday | 91°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph SW | 32% |
| Monday Night | 73°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 32% |
Forecast source: National Weather Service (api.weather.gov) for Dayton (32.351, -87.642). Updated through the day.
Growing snapshot for Dayton
Last spring frost
Mar 16
First fall frost
Nov 14
Growing season
241 days
Hardiness zone
8b
More local growing data for Dayton: nearby ZIP 36738 weather · frost dates · planting calendar · Alabama frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Demopolis L&D, Al (16.3 mi from Dayton). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.