Alton Weather Forecast

    • 62
    • 78

    Rain Showers

    • 60
    • 73

    Rain Showers Likely

    • 61
    • 76

    Chance Thunderstorms

    • 62
    • 80

    Slight Chance Thunderstorms

    • 48
    • 82

    Rain Showers

    • 41
    • 61

    Slight Chance Rain Showers

    • 47
    • 68

    Mostly Sunny

Today 7 Mar Jefferson

Showers likely with a chance of Thunderstorms. Highs around 80. Southwest Winds 10 to 15 Mph. Chance of rain 70 percent.

Tonight 7 Mar Jefferson

Showers with Thunderstorms likely in the Evening, then Showers likely with a chance of Thunderstorms after midnight. Lows in the lower 60s. Southwest Winds around 5 Mph. Chance of rain 90 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Alton Temperature Statistics

March Temperature

Birmingham, Birmingham International Airport (6.2 miles)

  • Lowest 1 March, 2026

    44.1 °F

  • Average March

    66.1 °F

  • Highest 5 March, 2026

    82 °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

    75.8 °F
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