Lake Cassidy Weather Forecast

    • 46
    • 67

    Partly Sunny

    • 48
    • 73

    Mostly Sunny

    • 50
    • 74

    Mostly Sunny

    • 49
    • 73

    Mostly Cloudy

    • 47
    • 69

    Rain Likely

    • 43
    • 59

    Rain Likely

Today 20 May Downtown Everett / Marysville Area

Mostly sunny. Patchy fog in the morning. Highs in the 60s. Light wind becoming northwest around 10 Mph in the afternoon.

Tonight 20 May Downtown Everett / Marysville Area

Partly cloudy. Patchy fog in the morning. Lows in the mid 40s to lower 50s. Northwest wind to 10 Mph in the evening becoming light.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Cassidy Temperature Statistics

May Temperature

Arlington Municipal Airport (7.5 miles)

  • Lowest 18 May, 2026

    42.1 °F

  • Average May

    56.6 °F

  • Highest 12 May, 2026

    84 °F

Climate (2021–Present)

Arlington Municipal Airport (7.5 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

    59.9 °F
Get WillyWeather+ to remove ads