Clear Lake Weather Forecast

    • 41
    • 51

    Rain

    • 43
    • 55

    Rain

    • 43
    • 61

    Mostly Cloudy

    • 45
    • 62

    Mostly Cloudy

    • 46
    • 64

    Slight Chance Rain

    • 47
    • 65

    Partly Sunny

Today 15 May Lowlands of Western Skagit and Northwestern Snohomish Counties

Showers through the day. A slight chance of Thunderstorms in the afternoon. Rainfall Amounts a quarter to a half inch Possible, except higher Amounts possible in Thunderstorms. Highs in the 50s. South wind 10 to 20 Mph.

Tonight 15 May Lowlands of Western Skagit and Northwestern Snohomish Counties

Showers and a slight chance of Thunderstorms in the Evening, then Showers likely after midnight. A slight chance of Thunderstorms after midnight. Rainfall Amounts a quarter to a half inch Possible, except higher Amounts possible in Thunderstorms. Lows in the lower to mid 40s. South wind to 10 Mph becoming southeast after midnight.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Clear Lake Temperature Statistics

May Temperature

Burlington/Mount Vernon, Skagit Regional Airport (8.1 miles)

  • Lowest 11 May, 2026

    44.6 °F

  • Average May

    57.2 °F

  • Highest 4 May, 2026

    78.8 °F

Climate (2021–Present)

Burlington/Mount Vernon, Skagit Regional Airport (8.1 miles)

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

  • Average Low 2021–2026

    43.9 °F

  • Average 2021–2026

    51.4 °F

  • Average High 2021–2026

    59.6 °F
Get WillyWeather+ to remove ads