Old Union Weather Forecast

    • 73
    • 88

    Increasing Clouds

    • 75
    • 88

    Mostly Cloudy

    • 74
    • 89

    Chance Thunderstorms

    • 72
    • 86

    Rain Showers Likely

    • 68
    • 81

    Rain Showers Likely

    • 68
    • 80

    Chance Thunderstorms

Today 16 May Limestone

Mostly cloudy this Morning, then becoming mostly sunny. Highs in the upper 80s. South Winds 10 to 15 Mph.

Tonight 16 May Limestone

Partly cloudy in the Evening, then becoming mostly cloudy. Lows in the lower 70s. South Winds 10 to 15 Mph.

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Old Union Temperature Statistics

May Temperature

Mexia Limestone County Airport (16.8 miles)

  • Lowest 2 May, 2026

    47.8 °F

  • Average May

    66.5 °F

  • Highest 9 May, 2026

    88 °F

Climate (2021–Present)

Mexia Limestone County Airport (16.8 miles)

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  • Average Low 2021–2026

    58.3 °F

  • Average 2021–2026

    68.2 °F

  • Average High 2021–2026

    79.1 °F
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