Alton Weather Forecast

    • 32
    • 46

    Increasing Clouds

    • 30
    • 56

    Chance Rain

    • 19
    • 45

    Snow Likely

    • 13
    • 23

    Wintry Mix

    • 13
    • 24

    Chance Snow

    • 1
    • 30

    Partly Sunny

Today 21 Jan Halifax

Sunny. Not as cool with Highs in the mid 40s. South Winds 5 to 10 Mph.

Tonight 21 Jan Halifax

Mostly cloudy. Not as cool with Lows in the lower 30s. Southwest Winds 5 to 10 Mph with Gusts up to 20 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Alton Temperature Statistics

January Temperature

William M Tuck Airport (12.4 miles)

  • Lowest 19 January, 2026

    16.3 °F

  • Average January

    41.2 °F

  • Highest 7 January, 2026

    71.2 °F

Climate (2021–Present)

William M Tuck Airport (12.4 miles)

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  • Average Low 2021–2026

    47.3 °F

  • Average 2021–2026

    58.7 °F

  • Average High 2021–2026

    70.8 °F
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