Diablo Lake Weather Forecast

    • 52
    • 71

    Mostly Sunny

    • 54
    • 74

    Mostly Sunny

    • 59
    • 79

    Mostly Sunny

    • 59
    • 82

    Partly Sunny

    • 57
    • 80

    Mostly Sunny

    • 54
    • 72

    Chance Rain

    • 51
    • 63

    Rain Likely

Today 20 Jun Foothills and Valleys of the North Cascades

Sunny. Highs in the 70s. South wind around 10 Mph.

Tonight 20 Jun Foothills and Valleys of the North Cascades

Mostly clear. Lows near 50. West wind to 10 Mph in the evening becoming light.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Diablo Lake Temperature Statistics

June Temperature

Arlington Municipal Airport (60.9 miles)

  • Lowest 1 June, 2026

    39.9 °F

  • Average June

    60 °F

  • Highest 15 June, 2026

    86 °F

Climate (2021–2026)

Arlington Municipal Airport (60.9 miles)

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

  • Average Low 2021–2026

    42.6 °F

  • Average 2021–2026

    50.9 °F

  • Average High 2021–2026

    60 °F
Get WillyWeather+ to remove ads