San Joaquin River National Wildlife Refuge Weather Forecast

    • 71
    • 96

    Mostly Sunny

    • 63
    • 96

    Mostly Sunny

    • 60
    • 92

    Sunny

    • 56
    • 85

    Sunny

    • 57
    • 84

    Mostly Sunny

    • 56
    • 86

    Sunny

    • 54
    • 83

    Sunny

Today 9 Sep Western Stanislaus County Below 1000 ft Including Interstate 5

Partly cloudy in the morning then clearing. Highs 93 to 101. Northwest Winds 10 to 15 Mph.

Tonight 9 Sep Western Stanislaus County Below 1000 ft Including Interstate 5

Mostly clear. Lows 71 to 77. Northwest Winds up to 10 Mph with Gusts to around 20 Mph.

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  • Temperature Real-Time

San Joaquin River National Wildlife Refuge Temperature Statistics

September Temperature

Modesto City-County Airport - Harry Sham Field (13 miles)

  • Lowest 1 September, 2026

    54.6 °F

  • Average September

    71.5 °F

  • Highest 7 September, 2026

    89.1 °F

Climate (2021–2026)

Modesto City-County Airport - Harry Sham Field (13 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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