Coulee Dam Weather Forecast
- 46
- 69
Increasing Clouds
- 42
- 69
Slight Chance Rain Showers
- 40
- 63
Partly Sunny
- 38
- 63
Partly Sunny
- 40
- 65
Mostly Sunny
- 43
- 69
Mostly Sunny
Today 18 Apr Upper Columbia Basin
Sunny. Highs in the mid 60s to lower 70s. South wind 5 to 15 Mph.
Tonight 18 Apr Upper Columbia Basin
Partly cloudy. Lows in the 40s. South wind 5 to 15 Mph.