Mattisons SPB Weather Forecast

    • 48
    • 66

    Increasing Clouds

    • 43
    • 63

    Mostly Cloudy

    • 42
    • 64

    Mostly Sunny

    • 48
    • 67

    Partly Sunny

    • 52
    • 69

    Slight Chance Rain Showers

    • 54
    • 73

    Mostly Cloudy

Today 20 Sep Washington

Increasing Clouds. Highs in the upper 60s. Northeast Winds 5 to 15 Mph.

Tonight 20 Sep Washington

Cloudy. Lows in the upper 40s. Northeast Winds 5 to 10 Mph.

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Mattisons SPB Temperature Statistics

September Temperature

L O Simenstad Municipal Airport (13 miles)

  • Lowest 14 September, 2026

    41.7 °F

  • Average September

    69.5 °F

  • Highest 1 September, 2026

    88 °F

Climate (2021–2026)

L O Simenstad Municipal Airport (13 miles)

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  • Average Low 2021–2026

    37.2 °F

  • Average 2021–2026

    47.5 °F

  • Average High 2021–2026

    57 °F
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