Brownsville Weather Forecast

    • 17
    • 27

    Decreasing Clouds

    • 24
    • 36

    Partly Sunny

    • 29
    • 48

    Mostly Cloudy

    • 34
    • 51

    Rain

    • 24
    • 41

    Partly Sunny

    • 35
    • 42

    Chance Rain

Today 15 Dec Washington

Partly sunny late this Morning, then becoming mostly cloudy. Scattered Flurries this afternoon. Highs in the upper 20s. West Winds 5 to 10 Mph with Gusts up to 25 Mph.

Tonight 15 Dec Washington

Partly cloudy in the Evening, then clearing. Lows around 17. Southwest Winds around 5 Mph.

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Brownsville Temperature Statistics

December Temperature

Frederick Municipal Airport (15.5 miles)

  • Lowest 9 December, 2025

    10.4 °F

  • Average December

    30.4 °F

  • Highest 7 December, 2025

    44.6 °F

Climate (2020–Present)

Frederick Municipal Airport (15.5 miles)

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  • Average Low 2020–2025

    46.5 °F

  • Average 2020–2025

    54.8 °F

  • Average High 2020–2025

    67.4 °F
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