Old Union Weather Forecast

    • 73
    • 91

    Partly Sunny

    • 74
    • 91

    Partly Sunny

    • 75
    • 91

    Partly Sunny

    • 73
    • 91

    Chance Thunderstorms

    • 71
    • 90

    Chance Thunderstorms

    • 70
    • 87

    Chance Thunderstorms

    • 71
    • 86

    Chance Thunderstorms

Today 29 May Limestone

Mostly sunny. Highs around 90. South Winds around 5 Mph.

Tonight 29 May Limestone

Mostly cloudy. Lows in the lower 70s. South Winds around 5 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

    70.2 °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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