❮
Today Hourly 7 days 30 days September
❯

September 2026 Weather | Kennewick, Washington

Today 9/1
Cloudy Weather
Day 88°
Night 64°
3
Wed 9/2
Rainy Weather
Day 79°
Night 59°
55
Thu 9/3
Rainy Weather
Day 73°
Night 54°
55
Fri 9/4
Cloudy Weather
Day 70°
Night 52°
21
Sat 9/5
Cloudy Weather
Day 75°
Night 52°
55
Sun 9/6
Rainy Weather
Day 79°
Night 61°
68
Mon 9/7
Rainy Weather
Day 81°
Night 59°
65
Tue 9/8
Cloudy Weather
Day 79°
Night 57°
7
Wed 9/9
Sunny Weather
Day 82°
Night 59°
8
Thu 9/10
Sunny Weather
Day 84°
Night 57°
2
Fri 9/11
Sunny Weather
Day 86°
Night 61°
0
Sat 9/12
Sunny Weather
Day 84°
Night 57°
0
Sun 9/13
Sunny Weather
Day 82°
Night 59°
0
Mon 9/14
Sunny Weather
Day 82°
Night 54°
20
Tue 9/15
Cloudy Weather
Day 86°
Night 61°
10
Wed 9/16
Sunny Weather
Day 82°
Night 57°
Thu 9/17
Sunny Weather
Day 73°
Night 54°
Fri 9/18
Cloudy Weather
Day 73°
Night 52°
Sat 9/19
Cloudy Weather
Day 79°
Night 54°
Sun 9/20
Sunny Weather
Day 75°
Night 57°
Mon 9/21
Sunny Weather
Day 73°
Night 52°
Tue 9/22
Sunny Weather
Day 72°
Night 52°
Wed 9/23
Cloudy Weather
Day 75°
Night 54°
Thu 9/24
Rainy Weather
Day 70°
Night 52°
Fri 9/25
Cloudy Weather
Day 70°
Night 50°
Sat 9/26
Cloudy Weather
Day 72°
Night 50°
Sun 9/27
Rainy Weather
Day 70°
Night 55°
Mon 9/28
Cloudy Weather
Day 72°
Night 55°
Tue 9/29
Cloudy Weather
Day 70°
Night 50°
Wed 9/30
Cloudy Weather
Day 73°
Night 54°

Explore U.S. Weather Trends

❄️ Coldest Cities in the U.S. – Live Temperature Rankings 🔥 Hottest Cities Today – Real-Time Heat Observations ⚠️ Active Weather Alerts – Warnings, Watches & Advisories 🌪️ Windiest Cities – Highest Sustained Wind Speeds 🌫️ Worst Air Quality – Cities with the Highest AQI 🍃 Best Air Quality – Cities with the Lowest AQI