Riverdale State Game Management Area Weather Forecast

    • -1
    • 10

    Cold

    • 11
    • 19

    Snow Likely

    • -5
    • 22

    Chance Snow

    • -24
    • 2

    Cold

    • -20
    • -8

    Cold

    • -10
    • 4

    Cold

    • -2
    • 15

    Mostly Cloudy

Today 19 Jan McLean

Partly cloudy with isolated snow Showers. Northwest Winds around 10 Mph. Chance of snow 20 percent.

Tonight 19 Jan McLean

Mostly cloudy. A slight chance of. Lows near zero. Northwest Winds 5 to 10 Mph, becoming southwest after midnight.

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Riverdale State Game Management Area Temperature Statistics

January Temperature

Garrison (12.4 miles)

  • Lowest 17 January, 2026

    -8 °F

  • Average January

    22.3 °F

  • Highest 12 January, 2026

    43 °F

Climate (2021–Present)

Garrison (12.4 miles)

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  • Average Low 2021–2026

    31.2 °F

  • Average 2021–2026

    42.6 °F

  • Average High 2021–2026

    54.1 °F
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