Decatur, AR Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Decatur, a city in Benton County, Arkansas.
This Afternoon
68°F
Chance Rain Showers
A chance of rain showers and patchy drizzle before 5pm, then patchy drizzle and a slight chance of rain showers. Mostly cloudy. High near 68, with temperatures falling to around 59 in the afternoon. West wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Decatur
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 68°F | Chance Rain Showers | 10 mph W | 39% |
| Tonight | 46°F | Patchy Drizzle then Mostly Cloudy | 5 to 10 mph W | 11% |
| 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% |
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
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Lost Bridge Village
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Maysville
Pea Ridge
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Springtown
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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.