Kennewick, WA 99337 Monthly Weather

Benton County4:24 PM PDT46.18°N, 119.14°W
← September

October 2026

Sun
Mon
Tue
Wed
Thu
Fri
Sat
177°/42°Avg 74°/43°
283°/42°Avg 74°/43°
382°/44°Avg 73°/42°
480°/45°Avg 72°/42°
584°/43°Avg 72°/42°
682°/42°Avg 71°/41°
779°/41°Avg 71°/41°
881°/41°Avg 70°/41°
975°/44°<0.01 inAvg 70°/40°
1064°/34°Avg 69°/40°
1161°/33°<0.01 inAvg 69°/40°
1259°/36°Avg 68°/39°
1365°/29°Avg 68°/39°
1472°/39°Avg 67°/39°
1574°/34°Avg 66°/38°
1671°/31°Avg 66°/38°
1773°/39°Avg 65°/38°
1866°/31°Avg 65°/38°
1959°/37°Avg 64°/37°
2067°/37°Avg 64°/37°
21 Mostly Sunny 67°/42°Avg 63°/37°
22 Chance Rain Showers 64°/43°Avg 62°/36°
23 Sunny 62°/35°Avg 62°/36°
24 Partly Sunny then Chance Rain Showers 56°/37°Avg 61°/36°
25 Slight Chance Rain Showers 58°/37°Avg 61°/36°
26 Mostly Sunny 58°/36°Avg 60°/36°
27 Cloudy 62°/42°Avg 60°/35°
28 Cloudy 61°/43°Avg 59°/35°
29Avg 58°/35°
30Avg 58°/35°
31Avg 57°/34°
Average high73° (normal 69°)
Average low38° (normal 40°)
Warmest / coldest84° / 29°
Precipitation<0.01 in (normal 0.39 in to date)
Record high today88° (2003)
Record low today23° (1928)

Observed: Tri-Cities Area, 10 km away, records since 1894. Normals 1991–2020. Climate data from NOAA's Regional Climate Centers (ACIS); recent days are preliminary. Days ahead: the forecast.

Forecasts, observations and alerts in the United States come from the National Weather Service (NOAA); radar from NOAA's Multi-Radar Multi-Sensor system; satellite imagery from NASA's Global Imagery Browse Services (GIBS) and NOAA's GOES satellites; the map from the U.S. Geological Survey's National Map; air quality from AirNow (EPA and its partners); hurricane information from the National Hurricane Center; climate normals and records from NOAA's Regional Climate Centers (ACIS). Forecasts outside the United States and the UV index: MET Norway (CC BY 4.0); observations outside the U.S.: airport reports via NOAA's Aviation Weather Center. Place names: GeoNames (CC BY 4.0). Data are copied on a schedule and may lag the sources; for warnings that affect your safety, follow your local National Weather Service office and emergency officials. Weather news is drawn from the 4Search index and reflects what the press published. Terms of use.