Little Sullivan Lake Weather Forecast
- 16
- 35
Mostly Sunny
- 19
- 35
Mostly Sunny
- 29
- 36
Mostly Cloudy
- 30
- 38
Rain/Snow
- 23
- 37
Slight Chance Snow
- 21
- 33
Chance Snow
- 21
- 32
Chance Snow
Today 28 Jan Upper Columbia Basin
Sunny. Highs in the lower to mid 30s. East wind 5 to 10 Mph.
Tonight 28 Jan Upper Columbia Basin
Mostly clear. Lows 15 to 19. Light wind.
Little Sullivan Lake Temperature Statistics
January Temperature
Grant County Airport (27.3 miles)
Lowest 22 January, 2025
14.8 °FAverage January
32.1 °FHighest 11 January, 2025
47.6 °F
Climate (2020–Present)
Grant County Airport (27.3 miles)
Take a look at our website widgetsAvailable free! Find Out MoreAverage Low 2020–2025
41.1 °FAverage 2020–2025
52.9 °FAverage High 2020–2025
64.3 °F