San Joaquin River National Wildlife Refuge Weather Forecast

    • 53
    • 59

    Rain

    • 48
    • 56

    Rain

    • 44
    • 52

    Rain

    • 37
    • 50

    Partly Sunny

    • 37
    • 48

    Partly Sunny

    • 38
    • 48

    Mostly Cloudy

Today 24 Dec Northern San Joaquin Valley

Rain Showers likely and a slight chance of Thunderstorms. Windy. Some Thunderstorms may produce heavy rainfall. Highs 55 to 60. South Winds 15 to 30 Mph with Gusts to around 50 Mph shifting to the southeast 10 to 20 Mph with Gusts to around 35 Mph in the afternoon.

Tonight 24 Dec Northern San Joaquin Valley

Rain Showers and a slight chance of Thunderstorms. Windy. Some Thunderstorms may produce heavy rainfall. Lows 48 to 55. Southeast Winds 15 to 30 Mph. Gusts up to 40 Mph increasing to 50 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

San Joaquin River National Wildlife Refuge Temperature Statistics

December Temperature

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

  • Lowest 4 December, 2025

    36 °F

  • Average December

    46.2 °F

  • Highest 21 December, 2025

    64.9 °F

Climate (2020–Present)

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

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  • Average Low 2020–2025

    51.5 °F

  • Average 2020–2025

    63.4 °F

  • Average High 2020–2025

    75.9 °F
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