Little Sullivan Lake Weather Forecast
- 20
- 36
Sunny
- 18
- 32
Partly Sunny
- 16
- 33
Mostly Sunny
- 19
- 31
Partly Sunny
- 19
- 31
Mostly Cloudy
- 20
- 34
Partly Sunny
- 23
- 35
Partly Sunny
Today 17 Jan Upper Columbia Basin
Sunny. Highs in the 30s. North wind 5 to 10 Mph.
Tonight 17 Jan Upper Columbia Basin
Mostly clear. Lows 18 to 24. North wind 5 to 10 Mph.
Little Sullivan Lake Temperature Statistics
January Temperature
Grant County Airport (27.3 miles)
Lowest 12 January, 2025
24.1 °FAverage January
33.9 °FHighest 11 January, 2025
46 °F
Climate (2020–Present)
Grant County Airport (27.3 miles)
Take a look at our website widgetsAvailable free! Find Out MoreAverage Low 2020–2025
41.2 °FAverage 2020–2025
53 °FAverage High 2020–2025
64.3 °F