Fort Stevenson State Park Weather Forecast

    • 57
    • 75

    Rain Showers Likely

    • 59
    • 74

    Rain Showers Likely

    • 59
    • 81

    Chance Thunderstorms

    • 58
    • 77

    Chance Thunderstorms

    • 57
    • 77

    Chance Rain Showers

    • 60
    • 82

    Slight Chance Thunderstorms

Today 19 Jul McLean

Mostly sunny. Areas of fog in the morning. A chance of Showers in the afternoon. Highs in the mid 70s. East Winds around 10 Mph, becoming southeast in the afternoon. Chance of rain 30 percent.

Tonight 19 Jul McLean

Showers likely and a chance of Thunderstorms. Areas of smoke. Lows in the upper 50s. Southeast Winds 10 to 15 Mph. Chance of rain 60 percent.

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Fort Stevenson State Park Temperature Statistics

July Temperature

Garrison (3.7 miles)

  • Lowest 17 July, 2025

    43 °F

  • Average July

    68.7 °F

  • Highest 10 July, 2025

    97.6 °F

Climate (2020–Present)

Garrison (3.7 miles)

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  • Average Low 2020–2025

    31.1 °F

  • Average 2020–2025

    42.6 °F

  • Average High 2020–2025

    54.1 °F
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