Old Union Weather Forecast

    • 43
    • 69

    Slight Chance Rain Showers

    • 28
    • 50

    Partly Sunny

    • 38
    • 53

    Partly Sunny

    • 52
    • 61

    Mostly Cloudy

    • 58
    • 71

    Mostly Cloudy

    • 50
    • 74

    Partly Sunny

Today 13 Dec Limestone

Cloudy this Morning, then becoming partly sunny. Areas of dense fog this morning. A 20 percent chance of Showers. Highs in the upper 60s. Light and variable Winds.

Tonight 13 Dec Limestone

Mostly cloudy with a slight chance of drizzle. Cooler with Lows around 40. Northeast Winds 5 to 10 Mph, becoming north 10 to 15 Mph after midnight.

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Old Union Temperature Statistics

December Temperature

Mexia Limestone County Airport (16.8 miles)

  • Lowest 2 December, 2025

    28.8 °F

  • Average December

    44.4 °F

  • Highest 6 December, 2025

    66.7 °F

Climate (2020–Present)

Mexia Limestone County Airport (16.8 miles)

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  • Average Low 2020–2025

    58 °F

  • Average 2020–2025

    67.9 °F

  • Average High 2020–2025

    78.6 °F
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