Alto Pass Weather Forecast

    • 21
    • 35

    Becoming Sunny

    • 31
    • 45

    Mostly Sunny

    • 39
    • 53

    Partly Sunny

    • 37
    • 60

    Partly Sunny

    • 37
    • 59

    Chance Rain

    • 31
    • 48

    Partly Sunny

Today 22 Feb Union

Sunny. Highs in the mid 30s. Southwest Winds around 5 Mph.

Tonight 22 Feb Union

Mostly clear. Lows in the lower 20s. Southwest Winds around 5 Mph.

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Alto Pass Temperature Statistics

February Temperature

Southern Illinois Airport (14.9 miles)

  • Lowest 19 February, 2025

    9 °F

  • Average February

    35.9 °F

  • Highest 3 February, 2025

    65.6 °F

Climate (2020–Present)

Southern Illinois Airport (14.9 miles)

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  • Average Low 2020–2025

    47.6 °F

  • Average 2020–2025

    57.7 °F

  • Average High 2020–2025

    68.3 °F
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