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.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Little Sullivan Lake Temperature Statistics

January Temperature

Grant County Airport (27.3 miles)

  • Lowest 12 January, 2025

    24.1 °F

  • Average January

    33.9 °F

  • Highest 11 January, 2025

    46 °F

Climate (2020–Present)

Grant County Airport (27.3 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    41.2 °F

  • Average 2020–2025

    53 °F

  • Average High 2020–2025

    64.3 °F
Get WillyWeather+ to remove ads