Alton Weather Forecast

    • 43
    • 55

    Rain

    • 42
    • 52

    Rain Likely

    • 32
    • 50

    Rain/Freezing Rain Likely

    • 31
    • 36

    Rain/Freezing Rain

    • 19
    • 32

    Chance Rain

    • 10
    • 30

    Partly Sunny

Today 21 Jan Jefferson

Partly sunny this Morning, then mostly cloudy with a chance of rain this afternoon. Highs in the mid 50s. South Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain 40 percent.

Tonight 21 Jan Jefferson

Rain. Not as cool with Lows in the mid 40s. South Winds around 5 Mph. Chance of rain 80 percent.

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Alton Temperature Statistics

January Temperature

Birmingham, Birmingham International Airport (6.2 miles)

  • Lowest 16 January, 2026

    23 °F

  • Average January

    47.9 °F

  • Highest 7 January, 2026

    69.1 °F

Climate (2021–Present)

Birmingham, Birmingham International Airport (6.2 miles)

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  • Average Low 2021–2026

    55.4 °F

  • Average 2021–2026

    65.3 °F

  • Average High 2021–2026

    75.7 °F
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