McNab, AR Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for McNab, a town in Hempstead County, Arkansas.
Tonight
70°F
Clear
Clear, with a low around 70. South wind around 0 mph.
7-day forecast for McNab
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 70°F | Clear | 0 mph | 0% |
| Saturday | 97°F | Sunny | 0 to 5 mph SW | 0% |
| Saturday Night | 71°F | Mostly Clear | 0 to 5 mph S | 0% |
| Sunday | 97°F | Mostly Sunny | 0 to 5 mph SW | 0% |
| Sunday Night | 73°F | Mostly Cloudy | 0 mph | 5% |
| Monday | 95°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 mph | 19% |
| Monday Night | 71°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 19% |
| Tuesday | 93°F | Mostly Sunny | 0 to 5 mph NE | 10% |
| Tuesday Night | 69°F | Partly Cloudy | 0 to 5 mph NE | 10% |
| Wednesday | 89°F | Mostly Sunny | 5 mph NE | 3% |
| Wednesday Night | 67°F | Mostly Clear | 0 to 5 mph NE | 3% |
| Thursday | 89°F | Mostly Sunny | 5 mph NE | 3% |
| Thursday Night | 66°F | Partly Cloudy | 0 to 5 mph NE | 3% |
| Friday | 88°F | Mostly Sunny | 5 mph NE | 1% |
Forecast source: National Weather Service (api.weather.gov) for McNab (33.661, -93.832). Updated through the day.
Growing snapshot for McNab
Last spring frost
Mar 26
First fall frost
Nov 6
Growing season
226 days
Hardiness zone
8b
More local growing data for McNab: nearby ZIP 71838 weather · frost dates · planting calendar · Arkansas frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Hope 3 Ne, Ar (14.2 mi from McNab). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.