Modesto Reservoir Weather Forecast

    • 50
    • 56

    Rain Showers

    • 43
    • 54

    Rain

    • 38
    • 50

    Mostly Cloudy

    • 36
    • 48

    Partly Sunny

    • 37
    • 48

    Mostly Cloudy

    • 39
    • 49

    Mostly Cloudy

Today 25 Dec Northern San Joaquin Valley

Rain Showers and a slight chance of Thunderstorms. Windy. Some Thunderstorms may produce heavy rainfall. Highs 51 to 60. South Winds 15 to 30 Mph with Gusts to around 50 Mph.

Tonight 25 Dec Northern San Joaquin Valley

Rain Showers and a slight chance of Thunderstorms. Breezy. Some Thunderstorms may produce heavy rainfall. Lows 44 to 51. South Winds 15 to 25 Mph with Gusts to around 40 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Modesto Reservoir Temperature Statistics

December Temperature

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

  • Lowest 4 December, 2025

    36 °F

  • Average December

    47.5 °F

  • Highest 22 December, 2025

    66.9 °F

Climate (2020–Present)

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

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    51.5 °F

  • Average 2020–2025

    63.4 °F

  • Average High 2020–2025

    75.9 °F
Get WillyWeather+ to remove ads