Central Valley Weather Forecast

    • 63
    • 90

    Mostly Sunny

    • 64
    • 94

    Mostly Sunny

    • 58
    • 86

    Mostly Sunny

    • 57
    • 85

    Partly Sunny

    • 56
    • 80

    Mostly Sunny

    • 58
    • 83

    Sunny

Today 23 Sep Central Stanislaus County Including Modesto Metro

Sunny. Highs around 89. Northwest Winds up to 10 Mph.

Tonight 23 Sep Central Stanislaus County Including Modesto Metro

Clear. Lows around 61. Light Winds.

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Central Valley Temperature Statistics

September Temperature

Modesto City-County Airport - Harry Sham Field (5.6 miles)

  • Lowest 17 September, 2026

    52.6 °F

  • Average September

    74.2 °F

  • Highest 10 September, 2026

    105.7 °F

Climate (2021–2026)

Modesto City-County Airport - Harry Sham Field (5.6 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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