Round Rock Weather Forecast

    • 26
    • 36

    Mostly Cloudy

    • 14
    • 32

    Chance Snow Showers

    • 19
    • 26

    Partly Sunny

    • 23
    • 33

    Partly Sunny

    • 26
    • 42

    Mostly Cloudy

    • 36
    • 45

    Mostly Cloudy

    • 20
    • 47

    Partly Sunny

Today 13 Dec Coastal Rockingham

Mostly cloudy with a 20 percent chance of snow Showers. Highs in the mid 30s. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 13 Dec Coastal Rockingham

Cloudy. A slight chance of snow in the Evening, then a chance of snow after midnight. Lows in the mid 20s. Southwest Winds around 10 Mph in the Evening, becoming light and variable. Chance of snow 50 percent.

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Round Rock Temperature Statistics

December Temperature

Pease Air Force Base / Portsmouth (13.7 miles)

  • Lowest 5 December, 2025

    6.8 °F

  • Average December

    26.9 °F

  • Highest 10 December, 2025

    41.4 °F

Climate (2020–Present)

Pease Air Force Base / Portsmouth (13.7 miles)

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  • Average Low 2020–2025

    42.6 °F

  • Average 2020–2025

    50.8 °F

  • Average High 2020–2025

    59.3 °F
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