Siloam Springs, AR Weather & Growing Conditions
Today
65°F
Mostly Sunny
Mostly sunny. High near 65, with temperatures falling to around 61 in the afternoon. West wind 5 to 10 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 65°F | Mostly Sunny | 5 to 10 mph W | 0% |
| Tonight | 41°F | Mostly Clear | 0 mph | 0% |
| Thursday | 67°F | Sunny | 0 to 5 mph W | 13% |
| Thursday Night | 43°F | Partly Cloudy | 0 to 5 mph N | 15% |
| Friday | 60°F | Mostly Sunny | 0 to 10 mph N | 0% |
| Friday Night | 39°F | Partly Cloudy | 0 to 5 mph NE | 0% |
| Saturday | 58°F | Mostly Sunny | 0 to 5 mph NE | 0% |
| Saturday Night | 35°F | Partly Cloudy | 0 mph | 0% |
| Sunday | 62°F | Sunny | 0 to 5 mph N | 0% |
| Sunday Night | 36°F | Clear | 0 mph | 0% |
| Monday | 66°F | Sunny | 0 to 5 mph S | 0% |
| Monday Night | 40°F | Clear | 0 mph | 2% |
| Tuesday | 69°F | Sunny | 0 to 5 mph SW | 1% |
| Tuesday Night | 44°F | Mostly Clear | 0 mph | 0% |
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 Nov 4, 2026.