Alton Weather Forecast

    • 72
    • 92

    Mostly Cloudy

    • 72
    • 93

    Mostly Cloudy

    • 61
    • 94

    Mostly Sunny

    • 53
    • 80

    Mostly Sunny

    • 61
    • 86

    Sunny

    • 64
    • 93

    Sunny

    • 64
    • 97

    Hot

Today 9 Mar Southern Hidalgo

Mostly sunny. Highs in the lower 90s. Southeast Winds 15 to 20 Mph with Gusts up to 30 Mph.

Tonight 9 Mar Southern Hidalgo

Mostly cloudy. Lows in the lower 70s. Southeast Winds 15 to 20 Mph with Gusts up to 30 Mph.

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Alton Temperature Statistics

March Temperature

McAllen, Miller International Airport (8.1 miles)

  • Lowest 2 March, 2026

    66 °F

  • Average March

    79.9 °F

  • Highest 7 March, 2026

    93.9 °F

Climate (2021–Present)

McAllen, Miller International Airport (8.1 miles)

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  • Average Low 2021–2026

    68 °F

  • Average 2021–2026

    77.5 °F

  • Average High 2021–2026

    88.2 °F
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