San Juan Island - Deadman Bay Weather Forecast

    • 41
    • 50

    Rain

    • 38
    • 49

    Rain

    • 38
    • 47

    Chance Rain

    • 40
    • 49

    Rain

    • 38
    • 49

    Rain

    • 35
    • 47

    Chance Rain/Snow

Today 22 Feb San Juan County

Windy. Rain at Times in the Morning, then rain likely in the afternoon. Rainfall Amounts less than a tenth of an inch likely. Highs near 50. Southeast wind 15 to 30 Mph with Gusts to 50 Mph.

Tonight 22 Feb San Juan County

Rain at Times in the Evening, then rain likely late in the evening. Rain at Times after midnight. Rainfall Amounts a tenth to a quarter of an inch possible. Lows in the upper 30s to mid 40s. Southeast wind 10 to 20 Mph with Gusts to 30 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

San Juan Island - Deadman Bay Temperature Statistics

February Temperature

Friday Harbor Airport (5 miles)

  • Lowest 19 February, 2026

    26.1 °F

  • Average February

    43 °F

  • Highest 4 February, 2026

    54 °F

Climate (2021–Present)

Friday Harbor Airport (5 miles)

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

  • Average Low 2021–2026

    44.4 °F

  • Average 2021–2026

    51.9 °F

  • Average High 2021–2026

    59.7 °F
Get WillyWeather+ to remove ads