Mammoth Spring, AR Weather & Growing Conditions
Tonight
70°F
Clear
Clear, with a low around 70. South southwest wind 0 to 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 70°F | Clear | 0 to 5 mph SSW | 0% |
| Saturday | 100°F | Sunny | 0 to 5 mph SW | 1% |
| Saturday Night | 69°F | Mostly Clear | 0 to 5 mph SW | 0% |
| Sunday | 99°F | Mostly Sunny | 0 to 5 mph WSW | 0% |
| Sunday Night | 69°F | Mostly Cloudy | 0 to 5 mph NNW | 8% |
| Monday | 92°F | Partly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph NNW | 46% |
| Monday Night | 63°F | Chance Showers And Thunderstorms | 5 mph N | 46% |
| Tuesday | 84°F | Mostly Sunny | 5 to 10 mph N | 12% |
| Tuesday Night | 56°F | Partly Cloudy | 5 to 10 mph NNE | 7% |
| Wednesday | 82°F | Sunny | 5 mph NNE | 2% |
| Wednesday Night | 55°F | Mostly Clear | 0 to 5 mph NNE | 0% |
| Thursday | 83°F | Sunny | 0 to 5 mph NNE | 3% |
| Thursday Night | 56°F | Mostly Clear | 0 to 5 mph NE | 3% |
| Friday | 82°F | Mostly Sunny | 0 to 5 mph NNE | 5% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Mammoth Spring, AR
Last spring frost
Apr 12
First fall frost
Oct 24
Growing season
194 days
Hardiness zone
7a
Explore more for Mammoth Spring, AR: full frost dates · planting calendar · Arkansas frost dates
Climate data from the nearest NOAA station, Mammoth Spring, Ar (3.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.