Guide Meridian Weather Forecast

    • 52
    • 69

    Decreasing Clouds

    • 57
    • 81

    Mostly Sunny

    • 51
    • 72

    Mostly Sunny

    • 50
    • 70

    Mostly Sunny

    • 52
    • 74

    Mostly Sunny

    • 54
    • 72

    Chance Rain

Today 15 Sep Lowlands of Western Whatcom County

Partly sunny in the morning then becoming sunny. Patchy fog in the morning. Highs in the mid 60s to lower 70s. South wind to 10 Mph in the morning becoming light.

Tonight 15 Sep Lowlands of Western Whatcom County

Mostly clear. Lows in the lower to mid 50s. Light wind.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Guide Meridian Temperature Statistics

September Temperature

Bellingham, Bellingham International Airport (1.9 miles)

  • Lowest 11 September, 2025

    54 °F

  • Average September

    62.4 °F

  • Highest 3 September, 2025

    79 °F

Climate (2020–Present)

Bellingham, Bellingham International Airport (1.9 miles)

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

  • Average Low 2020–2025

    44.1 °F

  • Average 2020–2025

    51.3 °F

  • Average High 2020–2025

    59 °F
Get WillyWeather+ to remove ads