Brentwood Weather Forecast

    • 15
    • 34

    Decreasing Clouds

    • 15
    • 30

    Mostly Sunny

    • 20
    • 33

    Chance Snow

    • 13
    • 30

    Chance Snow

    • 14
    • 24

    Partly Sunny

    • 14
    • 30

    Partly Sunny

Today 11 Dec Interior Rockingham

Partly sunny. Highs in the lower 30s. Temperatures falling into the mid 20s this afternoon. West Winds 15 to 20 Mph with Gusts up to 40 Mph.

Tonight 11 Dec Interior Rockingham

Mostly clear. Lows around 15. West Winds 15 to 20 Mph with Gusts up to 40 Mph. Wind chill Values as low as 1 below.

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  • Temperature Real-Time

Brentwood Temperature Statistics

December Temperature

Pease Air Force Base / Portsmouth (14.3 miles)

  • Lowest 5 December, 2025

    6.8 °F

  • Average December

    26.7 °F

  • Highest 1 December, 2025

    40.3 °F

Climate (2020–Present)

Pease Air Force Base / Portsmouth (14.3 miles)

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  • Average Low 2020–2025

    42.6 °F

  • Average 2020–2025

    50.9 °F

  • Average High 2020–2025

    59.4 °F
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