Buffalo Rock State Park Weather Forecast

    • 26
    • 32

    Chance Flurries

    • 32
    • 43

    Partly Sunny

    • 30
    • 50

    Slight Chance Rain

    • 18
    • 35

    Slight Chance Snow

    • 26
    • 31

    Mostly Cloudy

    • 20
    • 35

    Chance Snow

Today 11 Jan La Salle

Mostly cloudy in the Morning, then becoming partly cloudy. A chance of Flurries early in the morning. Blustery with Highs in the lower 30s. Northwest Winds 15 to 20 Mph with Gusts up to 35 Mph, becoming west 10 to 15 Mph with Gusts up to 25 Mph in the afternoon.

Tonight 11 Jan La Salle

Mostly clear in the Evening, then becoming partly cloudy. Near steady temperature in the upper 20s. Southwest Winds 10 to 15 Mph.

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Buffalo Rock State Park Temperature Statistics

January Temperature

Illinois Valley Regional Airport (11.8 miles)

  • Lowest 1 January, 2026

    14 °F

  • Average January

    33.5 °F

  • Highest 8 January, 2026

    62.6 °F

Climate (2021–Present)

Illinois Valley Regional Airport (11.8 miles)

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  • Average Low 2021–2026

    43.2 °F

  • Average 2021–2026

    52.7 °F

  • Average High 2021–2026

    62.2 °F
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