Benton City, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Benton City, a city in Benton County, Washington.
This Afternoon
83°F
Sunny
Sunny, with a high near 83. Southeast wind around 3 mph.
7-day forecast for Benton City
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 83°F | Sunny | 3 mph SE | 0% |
| Tonight | 56°F | Mostly Clear | 2 mph S | 0% |
| Sunday | 86°F | Sunny | 0 to 3 mph NW | 0% |
| Sunday Night | 57°F | Mostly Clear | 2 mph NE | 0% |
| Monday | 87°F | Sunny | 2 mph SW | 0% |
| Monday Night | 57°F | Partly Cloudy | 2 mph SW | 0% |
| Tuesday | 83°F | Mostly Sunny | 5 mph SW | 0% |
| Tuesday Night | 54°F | Partly Cloudy | 5 mph SW | 0% |
| Wednesday | 78°F | Mostly Sunny | 6 mph SW | 0% |
| Wednesday Night | 52°F | Partly Cloudy | 5 mph SW | 1% |
| Thursday | 74°F | Mostly Sunny | 5 mph NW | 3% |
| Thursday Night | 52°F | Mostly Cloudy | 5 mph NW | 7% |
| Friday | 73°F | Mostly Sunny | 3 to 7 mph W | 7% |
| Friday Night | 50°F | Mostly Cloudy | 7 mph W | 5% |
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 Sep 19, 2026.