Penn Valley Weather Forecast

    • 25
    • 60

    Rain

    • 30
    • 39

    Partly Sunny

    • 23
    • 47

    Mostly Sunny

    • 27
    • 38

    Chance Rain/Snow

    • 33
    • 41

    Chance Rain/Snow

    • 30
    • 46

    Chance Rain

Today 19 Dec Lower Bucks

Rain with a slight chance of Thunderstorms this Morning, then partly sunny with a chance of rain this afternoon. Breezy with Highs in the upper 50s. Temperature falling into the lower 40s this afternoon. South Winds 15 to 20 Mph, becoming west 15 to 25 Mph this afternoon. Gusts up to 45 Mph. Chance of rain near 100 percent.

Tonight 19 Dec Lower Bucks

Mostly clear. Much Colder with Lows in the mid 20s. West Winds 15 to 20 Mph. Gusts up to 45 Mph, decreasing to 35 Mph after midnight.

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Penn Valley Temperature Statistics

December Temperature

Trenton, Mercer County Airport (6.2 miles)

  • Lowest 9 December, 2025

    10.9 °F

  • Average December

    29.8 °F

  • Highest 17 December, 2025

    44.1 °F

Climate (2020–Present)

Trenton, Mercer County Airport (6.2 miles)

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  • Average Low 2020–2025

    46.1 °F

  • Average 2020–2025

    55.3 °F

  • Average High 2020–2025

    64.3 °F
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