Patuxent River State Park Weather Forecast

    • 70
    • 86

    Partly Sunny

    • 65
    • 84

    Rain Showers Likely

    • 64
    • 80

    Partly Sunny

    • 67
    • 79

    Chance Rain Showers

    • 67
    • 81

    Slight Chance Thunderstorms

    • 67
    • 83

    Slight Chance Thunderstorms

Today 9 Sep Northwest Montgomery

Mostly sunny. Highs in the upper 80s. South Winds 5 to 10 Mph.

Tonight 9 Sep Northwest Montgomery

Partly cloudy in the Evening, then becoming mostly clear. Lows around 70. Southwest Winds 5 to 10 Mph with Gusts up to 20 Mph.

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Patuxent River State Park Temperature Statistics

September Temperature

Gaithersburg - Montgomery County Airport (6.8 miles)

  • Lowest 6 September, 2026

    59 °F

  • Average September

    75.8 °F

  • Highest 1 September, 2026

    93.9 °F

Climate (2021–2026)

Gaithersburg - Montgomery County Airport (6.8 miles)

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  • Average Low 2021–2026

    46.2 °F

  • Average 2021–2026

    56 °F

  • Average High 2021–2026

    65.9 °F
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