Union Valley Weather Forecast

    • 17
    • 46

    Mostly Sunny

    • 21
    • 34

    Mostly Sunny

    • 31
    • 50

    Mostly Sunny

    • 50
    • 64

    Mostly Cloudy

    • 37
    • 64

    Slight Chance Thunderstorms

    • 30
    • 58

    Mostly Sunny

Today 30 Jan Hunt

Sunny, cooler with Highs in the mid 40s. North Winds 5 to 10 Mph.

Tonight 30 Jan Hunt

Mostly clear. Cold with Lows around 17. North Winds 5 to 10 Mph, increasing to 10 to 15 Mph after midnight. Wind chill Values as low as 6 above after midnight.

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Union Valley Temperature Statistics

January Temperature

Rockwall Municipal Airport (10.6 miles)

  • Lowest 25 January, 2026

    13.8 °F

  • Average January

    46.4 °F

  • Highest 7 January, 2026

    78.1 °F

Climate (2021–Present)

Rockwall Municipal Airport (10.6 miles)

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  • Average Low 2021–2026

    57.5 °F

  • Average 2021–2026

    66.7 °F

  • Average High 2021–2026

    76.9 °F
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