❮
Today Hourly 7 days 30 days September
❯

September 2026 Weather | Richland, Washington

Today 9/21
Cloudy Weather
Day 88°
Night 55°
0
Tue 9/22
Cloudy Weather
Day 81°
Night 46°
0
Wed 9/23
Cloudy Weather
Day 77°
Night 50°
0
Thu 9/24
Cloudy Weather
Day 75°
Night 54°
1
Fri 9/25
Cloudy Weather
Day 72°
Night 45°
49
Sat 9/26
Cloudy Weather
Day 70°
Night 45°
0
Sun 9/27
Cloudy Weather
Day 72°
Night 43°
2
Mon 9/28
Cloudy Weather
Day 75°
Night 50°
3
Tue 9/29
Cloudy Weather
Day 75°
Night 48°
0
Wed 9/30
Sunny Weather
Day 73°
Night 48°
0

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