Modesto Reservoir Weather Forecast

    • 54
    • 81

    Sunny

    • 57
    • 86

    Mostly Sunny

    • 59
    • 89

    Sunny

    • 59
    • 89

    Sunny

    • 60
    • 90

    Sunny

    • 59
    • 91

    Mostly Sunny

Today 13 Sep Central Stanislaus County Including Modesto Metro

Sunny. Highs around 81. Northwest Winds 10 to 15 Mph.

Tonight 13 Sep Central Stanislaus County Including Modesto Metro

Clear. Lows 53 to 58. Northwest Winds up to 10 Mph with Gusts to around 20 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Modesto Reservoir Temperature Statistics

September Temperature

Modesto City-County Airport - Harry Sham Field (16.2 miles)

  • Lowest 1 September, 2026

    54.6 °F

  • Average September

    75.4 °F

  • Highest 10 September, 2026

    105.1 °F

Climate (2021–2026)

Modesto City-County Airport - Harry Sham Field (16.2 miles)

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  • Average Low 2021–2026

    51.8 °F

  • Average 2021–2026

    63.8 °F

  • Average High 2021–2026

    76.3 °F
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