Big Flat, AR Weather & Growing Conditions
Today
98°F
Sunny
Sunny, with a high near 98. Heat index values as high as 98. Southwest wind 5 to 10 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 98°F | Sunny | 5 to 10 mph SW | 0% |
| Tonight | 71°F | Mostly Clear | 5 mph SW | 0% |
| Sunday | 98°F | Mostly Sunny | 0 to 5 mph WSW | 0% |
| Sunday Night | 70°F | Mostly Cloudy then Chance Showers And Thunderstorms | 0 to 5 mph WSW | 25% |
| Monday | 90°F | Chance Rain Showers | 0 to 5 mph N | 53% |
| Monday Night | 64°F | Chance Showers And Thunderstorms | 0 to 5 mph N | 53% |
| Tuesday | 81°F | Slight Chance Rain Showers then Partly Sunny | 5 mph N | 16% |
| Tuesday Night | 57°F | Partly Cloudy | 0 to 5 mph NNE | 4% |
| Wednesday | 80°F | Mostly Sunny | 0 to 5 mph NNE | 1% |
| Wednesday Night | 56°F | Mostly Clear | 0 mph | 0% |
| Thursday | 82°F | Mostly Sunny | 0 to 5 mph NE | 2% |
| Thursday Night | 57°F | Partly Cloudy | 0 mph | 2% |
| Friday | 82°F | Mostly Sunny | 0 to 5 mph ENE | 7% |
| Friday Night | 58°F | Mostly Cloudy | 0 mph | 7% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Big Flat, AR
Last spring frost
Apr 11
First fall frost
Oct 26
Growing season
197 days
Hardiness zone
7b
Explore more for Big Flat, AR: full frost dates · planting calendar · Arkansas frost dates
Climate data from the nearest NOAA station, Marshall, Ar (11.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.