Siloam Springs, AR Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Siloam Springs, a city in Benton County, Arkansas.
Today
64°F
Mostly Sunny
Mostly sunny. High near 64, with temperatures falling to around 60 in the afternoon. West wind 5 to 10 mph.
7-day forecast for Siloam Springs
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 64°F | Mostly Sunny | 5 to 10 mph W | 0% |
| Tonight | 43°F | Mostly Clear | 0 to 5 mph SW | 0% |
| Thursday | 66°F | Sunny then Slight Chance Rain Showers | 0 to 5 mph SW | 15% |
| Thursday Night | 44°F | Slight Chance Rain Showers then Partly Cloudy | 5 mph N | 16% |
| Friday | 60°F | Mostly Sunny | 5 to 10 mph N | 0% |
| Friday Night | 40°F | Partly Cloudy | 0 to 5 mph NE | 0% |
| Saturday | 57°F | Mostly Sunny | 0 to 5 mph NE | 0% |
| Saturday Night | 36°F | Partly Cloudy | 0 mph | 0% |
| Sunday | 62°F | Sunny | 0 to 5 mph N | 0% |
| Sunday Night | 37°F | Clear | 0 mph | 0% |
| Monday | 66°F | Sunny | 0 to 5 mph S | 0% |
| Monday Night | 41°F | Clear | 0 mph | 2% |
| Tuesday | 68°F | Sunny | 0 to 5 mph S | 1% |
| Tuesday Night | 45°F | Mostly Clear | 0 mph | 0% |
Forecast source: National Weather Service (api.weather.gov) for Siloam Springs (36.185, -94.532). Updated through the day.
Growing snapshot for Siloam Springs
Last spring frost
Apr 8
First fall frost
Oct 28
Growing season
203 days
Hardiness zone
7a
More local growing data for Siloam Springs: nearby ZIP 72761 weather · frost dates · planting calendar · Arkansas frost dates
Nearby towns & communities
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Little Flock
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Climate data from the nearest NOAA station, Fayetteville Nw Ar Ap, Ar (11.9 mi from Siloam Springs). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.