Benton City, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Benton City, a city in Benton County, Washington.
Overnight
55°F
Smoke
Smoke. Clear. Low around 55, with temperatures rising to around 58 overnight. West wind around 2 mph.
7-day forecast for Benton City
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 55°F | Smoke | 2 mph W | 0% |
| Tuesday | 91°F | Smoke | 1 to 8 mph N | 0% |
| Tuesday Night | 59°F | Areas Of Smoke | 0 to 6 mph N | 0% |
| Wednesday | 96°F | Areas Of Smoke | 0 to 5 mph NE | 0% |
| Wednesday Night | 62°F | Areas Of Smoke then Clear | 2 mph SW | 0% |
| Thursday | 102°F | Sunny | 1 to 5 mph SW | 0% |
| Thursday Night | 65°F | Clear | 2 to 6 mph SW | 0% |
| Friday | 100°F | Sunny | 7 mph SW | 0% |
| Friday Night | 64°F | Clear | 3 to 7 mph W | 0% |
| Saturday | 97°F | Sunny | 3 to 7 mph SW | 0% |
| Saturday Night | 62°F | Mostly Clear | 8 mph W | 0% |
| Sunday | 92°F | Sunny | 7 mph SW | 0% |
| Sunday Night | 60°F | Mostly Clear | 7 mph W | 0% |
| Monday | 91°F | Sunny | 6 mph SW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Benton City (46.264, -119.479). Updated through the day.
Growing snapshot for Benton City
Last spring frost
Apr 6
First fall frost
Oct 24
Growing season
200 days
Hardiness zone
7b
More local growing data for Benton City: nearby ZIP 99320 weather · frost dates · planting calendar · Washington frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Richland, Wa (11.6 mi from Benton City). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.