Grand Coulee Weather Forecast
- 30
- 32
Snow Likely
- 32
- 37
Snow
- 20
- 36
Partly Sunny
- 22
- 33
Chance Snow
- 20
- 32
Chance Snow
- 12
- 29
Chance Snow
Today 30 Jan Upper Columbia Basin
Partly sunny. Highs in the mid 30s to lower 40s. Light Wind, becoming southeast 5 to 10 Mph in the afternoon.
Tonight 30 Jan Upper Columbia Basin
Cloudy. A chance of rain or snow overnight. Lows in the upper 20s to lower 30s. Light Wind, becoming southeast 5 to 10 Mph overnight. Chance of precipitation 50 percent.
Grand Coulee Temperature Statistics
January Temperature
Omak Airport (42.9 miles)
Lowest 22 January, 2025
9.8 °FAverage January
27.7 °FHighest 6 January, 2025
40.6 °F
Climate (2020–Present)
Omak Airport (42.9 miles)
Take a look at our website widgetsAvailable free! Find Out MoreAverage Low 2020–2025
40.7 °FAverage 2020–2025
51.7 °FAverage High 2020–2025
62.6 °F