Modesto Reservoir Weather Forecast

    • 47
    • 65

    Rain Showers Likely

    • 43
    • 66

    Mostly Sunny

    • 44
    • 68

    Partly Sunny

    • 45
    • 68

    Partly Sunny

    • 44
    • 67

    Mostly Sunny

    • 44
    • 68

    Mostly Sunny

    • 43
    • 69

    Mostly Sunny

Today 31 Oct Central Stanislaus County Including Modesto Metro

Sunny. Highs around 71.

Tonight 31 Oct Central Stanislaus County Including Modesto Metro

Mostly cloudy. A chance of rain Showers and a slight chance of Thunderstorms early in the Evening, then a chance of rain Showers in the late evening and overnight. Lows around 48. Light Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Modesto Reservoir Temperature Statistics

October Temperature

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

  • Lowest 14 October, 2026

    43.6 °F

  • Average October

    68.6 °F

  • Highest 4 October, 2026

    101.6 °F

Climate (2021–2026)

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

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  • Average Low 2021–2026

    51.9 °F

  • Average 2021–2026

    63.9 °F

  • Average High 2021–2026

    76.4 °F
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