Swartz Lake Weather Forecast

    • 55
    • 80

    Partly Sunny

    • 57
    • 83

    Partly Sunny

    • 57
    • 84

    Mostly Cloudy

    • 54
    • 73

    Slight Chance Rain

    • 52
    • 74

    Partly Sunny

    • 53
    • 78

    Partly Sunny

Today 19 Aug Foothills and Valleys of the North Cascades

Mostly sunny. Patchy fog in the morning. Highs in the mid 70s to lower 80s. Light wind becoming west to 10 Mph in the afternoon.

Tonight 19 Aug Foothills and Valleys of the North Cascades

Partly cloudy. Lows in the lower to mid 50s. Northwest wind to 10 Mph in the evening becoming light.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Swartz Lake Temperature Statistics

August Temperature

Arlington Municipal Airport (11.8 miles)

  • Lowest 3 August, 2026

    46.4 °F

  • Average August

    64.1 °F

  • Highest 6 August, 2026

    84.9 °F

Climate (2021–2026)

Arlington Municipal Airport (11.8 miles)

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

  • Average Low 2021–2026

    42.5 °F

  • Average 2021–2026

    50.8 °F

  • Average High 2021–2026

    59.8 °F
Get WillyWeather+ to remove ads