Chamna Natural Preserve Weather Forecast
- 60
- 85
Sunny
- 59
- 86
Partly Sunny
- 55
- 81
Partly Sunny
- 55
- 76
Partly Sunny
- 55
- 74
Chance Rain Showers
- 50
- 69
Slight Chance Rain Showers
Today 20 Sep Lower Columbia Basin of Washington
Sunny. Highs in the lower to mid 80s. Light wind.
Tonight 20 Sep Lower Columbia Basin of Washington
Clear. Lows in the 50s. Light wind.
Chamna Natural Preserve Temperature Statistics
September Temperature
Tri-Cities Airport (7.5 miles)
Lowest 8 September, 2026
44.7 °FAverage September
64.8 °FHighest 10 September, 2026
90.6 °F
Climate (2021–2026)
Tri-Cities Airport (7.5 miles)
Average Low 2021–2026
42.8 °FAverage 2021–2026
55.4 °FAverage High 2021–2026
67.9 °F