New Melones Dam Weather Forecast

    • 48
    • 57

    Rain

    • 46
    • 52

    Rain Showers

    • 40
    • 48

    Rain

    • 35
    • 46

    Partly Sunny

    • 36
    • 46

    Mostly Sunny

    • 38
    • 49

    Mostly Sunny

    • 41
    • 52

    Mostly Sunny

Today 24 Dec Motherlode

Rain Showers and a slight chance of Thunderstorms in the Morning, then rain in the afternoon. Breezy. Some Thunderstorms may produce heavy rainfall in the morning. Highs 50 to 56. Prevailing south Winds 15 to 25 Mph decreasing to 5 to 15 Mph in the afternoon. Gusts up to 45 Mph.

Tonight 24 Dec Motherlode

Breezy. A chance of rain Showers early in the evening. A slight chance of Thunderstorms in the evening. Rain Showers late in the Evening, then rain after midnight. Some Thunderstorms may produce heavy rainfall in the evening. Lows 41 to 49. Prevailing southeast Winds 10 to 25 Mph with Gusts to around 45 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

New Melones Dam Temperature Statistics

December Temperature

Modesto City-County Airport - Harry Sham Field (32.3 miles)

  • Lowest 4 December, 2025

    36 °F

  • Average December

    46.9 °F

  • Highest 22 December, 2025

    66.9 °F

Climate (2020–Present)

Modesto City-County Airport - Harry Sham Field (32.3 miles)

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  • Average Low 2020–2025

    51.5 °F

  • Average 2020–2025

    63.4 °F

  • Average High 2020–2025

    75.9 °F
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