Alton Weather Forecast

    • 12
    • 25

    Slight Chance Snow

    • 18
    • 54

    Mostly Sunny

    • 25
    • 49

    Mostly Cloudy

    • 22
    • 53

    Partly Sunny

    • 21
    • 47

    Mostly Sunny

    • 29
    • 61

    Mostly Sunny

Today 31 Jan Osborne

Mostly cloudy. A 30 percent chance of snow in the afternoon. Cold. Highs in the mid 20s. South Winds 10 to 15 Mph with Gusts to around 25 Mph.

Tonight 31 Jan Osborne

Partly cloudy with a 30 percent chance of snow in the Evening, then clear after midnight. Lows around 13. Southwest Winds 10 to 15 Mph with Gusts to around 20 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Alton Temperature Statistics

January Temperature

Russell, Russell Municipal Airport (41.6 miles)

  • Lowest 25 January, 2026

    -15.4 °F

  • Average January

    31.4 °F

  • Highest 4 January, 2026

    71.7 °F

Climate (2021–Present)

Russell, Russell Municipal Airport (41.6 miles)

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  • Average Low 2021–2026

    43.7 °F

  • Average 2021–2026

    56.3 °F

  • Average High 2021–2026

    69.4 °F
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