Grannis, AR Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Grannis, a city in Polk County, Arkansas.
This Afternoon
96°F
Sunny
Sunny, with a high near 96. South southeast wind around 5 mph.
7-day forecast for Grannis
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 96°F | Sunny | 5 mph SSE | 0% |
| Tonight | 68°F | Mostly Clear | 0 to 5 mph SSE | 0% |
| Saturday | 96°F | Sunny | 0 to 5 mph SW | 0% |
| Saturday Night | 68°F | Mostly Clear | 0 to 5 mph S | 0% |
| Sunday | 95°F | Mostly Sunny | 0 to 5 mph SW | 0% |
| Sunday Night | 69°F | Mostly Cloudy | 0 to 5 mph S | 9% |
| Monday | 94°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph W | 18% |
| Monday Night | 67°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph N | 18% |
| Tuesday | 91°F | Mostly Sunny then Slight Chance Rain Showers | 5 mph NNE | 15% |
| Tuesday Night | 64°F | Slight Chance Rain Showers then Partly Cloudy | 5 mph NE | 15% |
| Wednesday | 89°F | Mostly Sunny | 5 mph NE | 4% |
| Wednesday Night | 62°F | Partly Cloudy | 0 to 5 mph NE | 4% |
| Thursday | 89°F | Sunny | 5 mph ENE | 3% |
| Thursday Night | 62°F | Partly Cloudy | 0 to 5 mph NE | 3% |
Forecast source: National Weather Service (api.weather.gov) for Grannis (34.240, -94.322). Updated through the day.
Growing snapshot for Grannis
Last spring frost
Mar 29
First fall frost
Nov 5
Growing season
222 days
Hardiness zone
8a
More local growing data for Grannis: nearby ZIP 71944 weather · frost dates · planting calendar · Arkansas frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Dequeen, Ar (13.5 mi from Grannis). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 18, 2026.