Lopez Island - Swifts Bay Weather Forecast

    • 39
    • 47

    Mostly Sunny

    • 37
    • 45

    Increasing Clouds

    • 37
    • 43

    Partly Sunny

    • 35
    • 44

    Mostly Sunny

    • 36
    • 43

    Partly Sunny

    • 38
    • 43

    Chance Rain

    • 41
    • 46

    Slight Chance Rain

Today 20 Jan San Juan County

Mostly cloudy in the morning then becoming mostly sunny. Patchy fog in the morning. Highs in the mid 40s to lower 50s. North wind to 10 Mph increasing to 10 to 15 Mph in the afternoon.

Tonight 20 Jan San Juan County

Mostly clear. Widespread dense fog after midnight. Lows in the mid 30s to lower 40s. Light wind.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Lopez Island - Swifts Bay Temperature Statistics

January Temperature

Friday Harbor Airport (7.5 miles)

  • Lowest 8 January, 2026

    33.1 °F

  • Average January

    44.6 °F

  • Highest 13 January, 2026

    53.1 °F

Climate (2021–Present)

Friday Harbor Airport (7.5 miles)

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

  • Average Low 2021–2026

    44.4 °F

  • Average 2021–2026

    51.8 °F

  • Average High 2021–2026

    59.6 °F
Get WillyWeather+ to remove ads