Mammoth Spring, AR Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Mammoth Spring, a city in Fulton County, Arkansas.
This Afternoon
69°F
Showers And Thunderstorms
Showers and thunderstorms. Cloudy. High near 69, with temperatures falling to around 66 in the afternoon. South wind around 13 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
7-day forecast for Mammoth Spring
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 69°F | Showers And Thunderstorms | 13 mph S | 95% |
| Tonight | 45°F | Chance Showers And Thunderstorms then Mostly Cloudy | 5 to 10 mph SW | 43% |
| Wednesday | 66°F | Mostly Sunny | 5 to 9 mph W | 1% |
| Wednesday Night | 35°F | Mostly Clear | 2 mph W | 0% |
| Thursday | 70°F | Sunny | 0 to 5 mph SW | 1% |
| Thursday Night | 39°F | Mostly Cloudy | 3 mph NW | 9% |
| Friday | 63°F | Mostly Sunny | 3 to 8 mph N | 0% |
| Friday Night | 34°F | Partly Cloudy | 5 mph N | 0% |
| Saturday | 60°F | Mostly Sunny | 3 mph N | 0% |
| Saturday Night | 31°F | Partly Cloudy | 2 mph NW | 1% |
| Sunday | 64°F | Sunny | 2 to 6 mph NW | 6% |
| Sunday Night | 31°F | Mostly Clear | 3 mph NW | 2% |
| Monday | 67°F | Sunny | 1 to 6 mph W | 1% |
| Monday Night | 33°F | Mostly Clear | 2 mph SW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Mammoth Spring (36.492, -91.541). Updated through the day.
Growing snapshot for Mammoth Spring
Last spring frost
Apr 12
First fall frost
Oct 24
Growing season
194 days
Hardiness zone
7a
More local growing data for Mammoth Spring: nearby ZIP 72554 weather · frost dates · planting calendar · Arkansas frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Mammoth Spring, Ar (3.7 mi from Mammoth Spring). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.