Coffeepot Lake Weather Forecast
- 42
- 65
Chance Rain Showers
- 46
- 69
Partly Sunny
- 49
- 77
Mostly Sunny
- 55
- 84
Mostly Sunny
- 50
- 82
Partly Sunny
- 53
- 82
Partly Sunny
Today 22 May Upper Columbia Basin
Mostly cloudy with a 50 percent chance of rain Showers. Highs in the lower 60s to lower 70s. Northeast wind 5 to 10 Mph shifting to the southwest in the afternoon. Rainfall Amounts less than a tenth of an inch.
Tonight 22 May Upper Columbia Basin
Mostly clear. Lows in the lower to mid 40s. South wind 5 to 10 Mph.
Coffeepot Lake Temperature Statistics
May Temperature
Grant County Airport (39.8 miles)
Lowest 5 May, 2025
34.6 °FAverage May
58.2 °FHighest 2 May, 2025
82.7 °F
Climate (2020–Present)
Grant County Airport (39.8 miles)
Average Low 2020–2025
40.9 °FAverage 2020–2025
52.8 °FAverage High 2020–2025
64.1 °F