Irvine Slough Weather Forecast

    • 46
    • 62

    Mostly Cloudy

    • 48
    • 67

    Mostly Cloudy

    • 48
    • 64

    Chance Rain Showers

    • 47
    • 63

    Rain Showers Likely

    • 47
    • 61

    Slight Chance Rain Showers

    • 48
    • 62

    Mostly Cloudy

Today 8 May Lowlands of Western Skagit and Northwestern Snohomish Counties

Mostly sunny. Highs in the mid 50s to lower 60s. South wind 10 to 15 Mph becoming northwest in the afternoon.

Tonight 8 May Lowlands of Western Skagit and Northwestern Snohomish Counties

Mostly cloudy. Lows in the 40s. Northwest wind 10 to 15 Mph becoming north after midnight.

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  • Temperature Forecast NOAA

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Irvine Slough Temperature Statistics

May Temperature

Arlington Municipal Airport (10.6 miles)

  • Lowest 5 May, 2025

    36 °F

  • Average May

    53.6 °F

  • Highest 2 May, 2025

    73 °F

Climate (2020–Present)

Arlington Municipal Airport (10.6 miles)

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  • Average Low 2020–2025

    42.4 °F

  • Average 2020–2025

    50.5 °F

  • Average High 2020–2025

    59.5 °F
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