Mattisons SPB Weather Forecast

    • 64
    • 79

    Rain Showers Likely

    • 61
    • 70

    Rain Showers

    • 58
    • 72

    Rain Showers Likely

    • 60
    • 75

    Chance Thunderstorms

    • 58
    • 76

    Slight Chance Thunderstorms

    • 55
    • 71

    Slight Chance Rain Showers

Today 18 Sep Washington

Partly sunny. A 20 percent chance of Thunderstorms late in the afternoon. Highs in the upper 70s. Southeast Winds 5 to 10 Mph.

Tonight 18 Sep Washington

Showers likely and chance of Thunderstorms. Lows in the mid 60s. Southeast Winds up to 5 Mph. Chance of precipitation 70 percent.

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Mattisons SPB Temperature Statistics

September Temperature

L O Simenstad Municipal Airport (13 miles)

  • Lowest 6 September, 2025

    39.4 °F

  • Average September

    64.3 °F

  • Highest 16 September, 2025

    89.6 °F

Climate (2020–Present)

L O Simenstad Municipal Airport (13 miles)

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  • Average Low 2020–2025

    36.7 °F

  • Average 2020–2025

    47 °F

  • Average High 2020–2025

    56.6 °F
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