San Mateo Reservoir Weather Forecast

    • 57
    • 78

    Slight Chance Thunderstorms

    • 57
    • 81

    Slight Chance Thunderstorms

    • 58
    • 84

    Mostly Sunny

    • 58
    • 85

    Partly Sunny

    • 61
    • 86

    Mostly Cloudy

    • 59
    • 85

    Chance Thunderstorms

Today 23 Jul West Central Mountains

Partly cloudy. A chance of Showers and Thunderstorms this afternoon. Highs in the upper 70s. West Winds 15 to 20 Mph this morning. Chance of rain 50 percent.

Tonight 23 Jul West Central Mountains

Partly cloudy. A slight chance of Showers and Thunderstorms in the evening. Lows in the mid 50s. West Winds 15 to 20 Mph. Chance of rain 20 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

San Mateo Reservoir Temperature Statistics

July Temperature

Grants, Grants-Milan Municipal Airport (18.6 miles)

  • Lowest 4 July, 2025

    46.9 °F

  • Average July

    74.9 °F

  • Highest 10 July, 2025

    96.1 °F

Climate (2020–Present)

Grants, Grants-Milan Municipal Airport (18.6 miles)

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

  • Average Low 2020–2025

    33.9 °F

  • Average 2020–2025

    52 °F

  • Average High 2020–2025

    67.3 °F
Get WillyWeather+ to remove ads