Mountainburg, AR Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Mountainburg, a city in Crawford County, Arkansas.
Overnight
73°F
Mostly Clear
Mostly clear, with a low around 73. Wind around 0 mph.
7-day forecast for Mountainburg
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 73°F | Mostly Clear | 0 mph | 0% |
| Saturday | 96°F | Sunny | 0 to 10 mph S | 0% |
| Saturday Night | 72°F | Partly Cloudy | 0 to 5 mph S | 0% |
| Sunday | 94°F | Mostly Sunny | 0 to 5 mph S | 4% |
| Sunday Night | 71°F | Chance Showers And Thunderstorms | 0 to 5 mph NE | 49% |
| Monday | 89°F | Chance Showers And Thunderstorms | 0 to 10 mph NW | 49% |
| Monday Night | 65°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 5 to 10 mph N | 24% |
| Tuesday | 84°F | Mostly Sunny | 5 to 10 mph N | 10% |
| Tuesday Night | 61°F | Partly Cloudy | 5 to 10 mph NE | 9% |
| Wednesday | 85°F | Sunny | 5 mph NE | 3% |
| Wednesday Night | 61°F | Mostly Clear | 5 mph NE | 3% |
| Thursday | 85°F | Mostly Sunny | 0 mph | 2% |
| Thursday Night | 62°F | Partly Cloudy | 0 to 5 mph E | 0% |
| Friday | 85°F | Mostly Sunny | 0 to 5 mph E | 7% |
Forecast source: National Weather Service (api.weather.gov) for Mountainburg (35.650, -94.162). Updated through the day.
Growing snapshot for Mountainburg
Last spring frost
Apr 9
First fall frost
Oct 28
Growing season
201 days
Hardiness zone
7b
More local growing data for Mountainburg: nearby ZIP 72946 weather · frost dates · planting calendar · Arkansas frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Mountainburg 2 Ne, Ar (1.1 mi from Mountainburg). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.