Alton Weather Forecast

    • 69
    • 86

    Mostly Cloudy

    • 69
    • 81

    Rain Showers

    • 69
    • 82

    Rain Showers Likely

    • 69
    • 86

    Chance Thunderstorms

    • 71
    • 87

    Chance Thunderstorms

    • 72
    • 89

    Chance Thunderstorms

Today 6 Jun Jefferson

Mostly sunny. Highs in the upper 80s. Southeast Winds 5 to 10 Mph.

Tonight 6 Jun Jefferson

Partly cloudy. Near steady temperature in the mid 60s. Southeast Winds around 5 Mph.

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Alton Temperature Statistics

June Temperature

Birmingham, Birmingham International Airport (6.2 miles)

  • Lowest 3 June, 2026

    63 °F

  • Average June

    76.5 °F

  • Highest 1 June, 2026

    91.7 °F

Climate (2021–Present)

Birmingham, Birmingham International Airport (6.2 miles)

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  • Average Low 2021–2026

    55.5 °F

  • Average 2021–2026

    65.5 °F

  • Average High 2021–2026

    76 °F
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