Tri-Cities Airport Weather Forecast
- 66
- 100
Hot
- 56
- 95
Mostly Sunny
- 53
- 87
Sunny
- 57
- 90
Mostly Sunny
- 59
- 93
Mostly Sunny
- 54
- 90
Mostly Sunny
Today 21 Aug Lower Columbia Basin of Washington
Hot. Mostly cloudy. Patchy smoke. Highs 97 to 102. Light Wind, becoming north 5 to 10 Mph in the afternoon.
Tonight 21 Aug Lower Columbia Basin of Washington
Cloudy. Patchy smoke overnight. Lows in the mid 60s to lower 70s. Northwest wind 5 to 10 Mph.
Tri-Cities Airport Temperature Statistics
August Temperature
Tri-Cities Airport (0 miles)
Lowest 5 August, 2026
47.6 °FAverage August
74.5 °FHighest 7 August, 2026
102.7 °F
Climate (2021–2026)
Tri-Cities Airport (0 miles)
Average Low 2021–2026
42.8 °FAverage 2021–2026
55.4 °FAverage High 2021–2026
67.9 °F