Siloam Springs, AR Weather & Growing Conditions
Today
95°F
Sunny
Sunny, with a high near 95. South wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 95°F | Sunny | 5 mph S | 0% |
| Tonight | 74°F | Mostly Clear | 0 to 5 mph SE | 1% |
| Wednesday | 97°F | Mostly Sunny | 5 to 10 mph S | 3% |
| Wednesday Night | 75°F | Partly Cloudy | 5 mph S | 12% |
| Thursday | 96°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 mph S | 17% |
| Thursday Night | 73°F | Chance Showers And Thunderstorms | 0 to 5 mph S | 54% |
| Friday | 92°F | Chance Showers And Thunderstorms | 0 to 5 mph S | 54% |
| Friday Night | 72°F | Chance Showers And Thunderstorms | 0 to 5 mph S | 37% |
| Saturday | 93°F | Slight Chance Showers And Thunderstorms | 0 to 5 mph S | 16% |
| Saturday Night | 72°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 0 to 5 mph S | 15% |
| Sunday | 94°F | Sunny | 0 to 10 mph S | 3% |
| Sunday Night | 73°F | Mostly Clear | 5 mph S | 2% |
| Monday | 94°F | Sunny | 5 to 10 mph S | 3% |
| Monday Night | 74°F | Mostly Clear | 5 to 10 mph S | 2% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Siloam Springs, AR
Last spring frost
Apr 8
First fall frost
Oct 28
Growing season
203 days
Hardiness zone
7a
Explore more for Siloam Springs, AR: full frost dates · planting calendar · Arkansas frost dates
Climate data from the nearest NOAA station, Fayetteville Nw Ar Ap, Ar (11.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.