Patuxent River State Park Weather Forecast

    • 60
    • 83

    Chance Rain Showers

    • 59
    • 78

    Mostly Sunny

    • 62
    • 80

    Partly Sunny

    • 63
    • 79

    Partly Sunny

    • 67
    • 83

    Chance Rain Showers

    • 68
    • 86

    Chance Thunderstorms

Today 22 Jul Northwest Montgomery

Partly sunny. A slight chance of Showers in the Morning, then a chance of Showers with a slight chance of Thunderstorms in the afternoon. Highs in the lower 80s. West Winds 10 to 15 Mph. Chance of rain 40 percent.

Tonight 22 Jul Northwest Montgomery

Mostly cloudy with scattered Showers and Thunderstorms. Patchy fog. Some Thunderstorms may produce heavy rainfall. Lows around 70. Southwest Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain 50 percent.

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Patuxent River State Park Temperature Statistics

July Temperature

Gaithersburg - Montgomery County Airport (6.8 miles)

  • Lowest 13 July, 2026

    62.6 °F

  • Average July

    79.1 °F

  • Highest 4 July, 2026

    100.9 °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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