New Melones Dam Weather Forecast

    • 69
    • 94

    Increasing Clouds

    • 67
    • 83

    Chance Rain Showers

    • 66
    • 79

    Chance Rain Showers

    • 65
    • 85

    Mostly Sunny

    • 66
    • 86

    Mostly Sunny

    • 69
    • 89

    Chance Rain Showers

    • 64
    • 81

    Chance Rain Showers

Today 17 Sep Motherlode

Sunny. Highs 87 to 97. Prevailing northeast Winds up to 10 Mph shifting to the west in the afternoon.

Tonight 17 Sep Motherlode

Mostly clear in the evening then becoming mostly cloudy. Lows 63 to 71. Light Winds. Gusts up to 20 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

New Melones Dam Temperature Statistics

September Temperature

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

  • Lowest 5 September, 2025

    61 °F

  • Average September

    74.9 °F

  • Highest 2 September, 2025

    102 °F

Climate (2020–Present)

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

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  • Average Low 2020–2025

    51.2 °F

  • Average 2020–2025

    63.3 °F

  • Average High 2020–2025

    76.1 °F
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