Fort Stevenson State Park Weather Forecast

    • 29
    • 47

    Decreasing Clouds

    • 27
    • 56

    Partly Sunny

    • 26
    • 53

    Partly Sunny

    • 32
    • 48

    Chance Rain Showers

    • 35
    • 52

    Chance Rain Showers

    • 34
    • 54

    Chance Rain Showers

Today 27 Oct Western McLean

Cloudy. Patchy fog in the morning. A slight chance of rain Showers in the afternoon. Highs in the mid 40s. Southeast Winds 10 to 20 Mph with Gusts up to 30 Mph.

Tonight 27 Oct Western McLean

Partly cloudy. Lows in the upper 20s. Southwest Winds 5 to 15 Mph with Gusts up to 25 Mph.

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Fort Stevenson State Park Temperature Statistics

October Temperature

Garrison (3.7 miles)

  • Lowest 19 October, 2026

    25.6 °F

  • Average October

    50.3 °F

  • Highest 5 October, 2026

    77.6 °F

Climate (2021–2026)

Garrison (3.7 miles)

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  • Average Low 2021–2026

    31.2 °F

  • Average 2021–2026

    42.6 °F

  • Average High 2021–2026

    54 °F
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