Richland Airport Weather Forecast
- 55
- 77
Increasing Clouds
- 52
- 77
Rain Showers
- 50
- 68
Rain Showers
- 51
- 72
Mostly Sunny
- 53
- 75
Mostly Sunny
- 54
- 77
Mostly Sunny
Today 11 Sep Lower Columbia Basin of Washington
Partly cloudy in the morning then clearing. Highs in the 70s. Southwest wind 5 to 10 Mph.
Tonight 11 Sep Lower Columbia Basin of Washington
Mostly cloudy. Lows in the lower to mid 50s. Light wind.
Richland Airport Temperature Statistics
September Temperature
Tri-Cities Airport (8.7 miles)
Lowest 8 September, 2026
44.7 °FAverage September
65.4 °FHighest 9 September, 2026
86 °F
Climate (2021–2026)
Tri-Cities Airport (8.7 miles)
Average Low 2021–2026
42.8 °FAverage 2021–2026
55.4 °FAverage High 2021–2026
67.9 °F