Grand Coulee Weather Forecast
- 45
- 66
Slight Chance Rain Showers
- 43
- 67
Mostly Cloudy
- 43
- 64
Mostly Cloudy
- 38
- 60
Partly Sunny
- 40
- 62
Partly Sunny
- 46
- 68
Mostly Cloudy
Today 26 Apr Upper Columbia Basin
Mostly cloudy with a 20 percent chance of rain Showers. Highs in the 60s. Southwest wind 5 to 10 Mph.
Tonight 26 Apr Upper Columbia Basin
Partly cloudy. Lows in the lower 40s. Southwest wind 5 to 10 Mph.
Grand Coulee Temperature Statistics
April Temperature
Omak Airport (42.9 miles)
Lowest 19 April, 2024
28.9 °FAverage April
50.4 °FHighest 14 April, 2024
78.7 °F
Climate (2019–Present)
Omak Airport (42.9 miles)
Take a look at our website widgetsAvailable free! Find Out MoreAverage Low 2019–2024
40.8 °FAverage 2019–2024
51.5 °FAverage High 2019–2024
62 °F