Decatur, AR Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Decatur, a city in Benton County, Arkansas.
Tonight
46°F
Mostly Cloudy
Mostly cloudy, with a low around 46. West wind 5 to 10 mph.
7-day forecast for Decatur
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 46°F | Mostly Cloudy | 5 to 10 mph W | 3% |
| Wednesday | 64°F | Mostly Sunny | 5 to 10 mph W | 0% |
| Wednesday Night | 43°F | Mostly Clear | 0 to 5 mph SW | 0% |
| Thursday | 66°F | Mostly Sunny then Chance Rain Showers | 0 to 5 mph SW | 41% |
| Thursday Night | 42°F | Slight Chance Rain Showers then Mostly Cloudy | 5 mph N | 17% |
| Friday | 59°F | Mostly Sunny | 5 to 10 mph N | 1% |
| Friday Night | 40°F | Partly Cloudy | 0 to 5 mph N | 0% |
| Saturday | 59°F | Partly Sunny | 0 to 5 mph N | 1% |
| Saturday Night | 39°F | Mostly Clear | 0 mph | 5% |
| Sunday | 63°F | Sunny | 0 to 5 mph W | 5% |
| Sunday Night | 39°F | Clear | 0 to 5 mph SW | 1% |
| Monday | 67°F | Sunny | 5 to 10 mph SW | 0% |
| Monday Night | 44°F | Mostly Clear | 5 mph S | 0% |
| Tuesday | 70°F | Sunny | 5 mph S | 0% |
Forecast source: National Weather Service (api.weather.gov) for Decatur (36.349, -94.458). Updated through the day.
Growing snapshot for Decatur
Last spring frost
Apr 5
First fall frost
Oct 28
Growing season
204 days
Hardiness zone
7a
More local growing data for Decatur: nearby ZIP 72722 weather · frost dates · planting calendar · Arkansas frost dates
Nearby towns & communities
Avoca
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Bentonville
Cave Springs
Centerton
Cherokee City
Garfield
Gentry
Gravette
Highfill
Little Flock
Lost Bridge Village
Lowell
Maysville
Pea Ridge
Prairie Creek
Rogers
Siloam Springs
Springtown
Sulphur Springs
Climate data from the nearest NOAA station, Gravette, Ar (5.8 mi from Decatur). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.