Larch Lake Weather Forecast

    • 56
    • 76

    Sunny

    • 52
    • 68

    Mostly Sunny

    • 53
    • 64

    Partly Sunny

    • 52
    • 67

    Partly Sunny

    • 53
    • 61

    Chance Rain

    • 51
    • 57

    Chance Rain

Today 16 Sep Foothills and Valleys of the North Cascades

Sunny. Areas of smoke late in the afternoon. Highs in the 80s to lower 90s. Light wind becoming southeast to 10 Mph in the afternoon.

Tonight 16 Sep Foothills and Valleys of the North Cascades

Clear. Areas of smoke. Lows in the mid 50s to lower 60s. East wind 10 to 15 Mph with Gusts to 25 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Larch Lake Temperature Statistics

September Temperature

Arlington Municipal Airport (16.2 miles)

  • Lowest 9 September, 2025

    51.8 °F

  • Average September

    63.4 °F

  • Highest 3 September, 2025

    81 °F

Climate (2020–Present)

Arlington Municipal Airport (16.2 miles)

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

  • Average Low 2020–2025

    42.4 °F

  • Average 2020–2025

    50.6 °F

  • Average High 2020–2025

    59.7 °F
Get WillyWeather+ to remove ads