Red Mountain Reservoir Weather Forecast

    • 56
    • 77

    Patchy Fog

    • 58
    • 82

    Becoming Sunny

    • 58
    • 85

    Mostly Sunny

    • 60
    • 85

    Partly Sunny

    • 63
    • 85

    Mostly Sunny

    • 66
    • 88

    Mostly Sunny

    • 67
    • 91

    Mostly Sunny

Today 3 Jul San Diego County Inland Valleys

Partly cloudy with patchy fog this morning. Becoming sunny. Highs 75 to 79 in the western Valleys to 82 to 87 near the Foothills. Areas of Winds west to 10 Mph.

Tonight 3 Jul San Diego County Inland Valleys

Mostly clear this evening. Becoming partly cloudy. Patchy fog overnight. Lows 53 to 59. Light Winds.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Red Mountain Reservoir Temperature Statistics

July Temperature

Fallbrook Community Airpark (4.3 miles)

  • Lowest 1 July, 2025

    59 °F

  • Average July

    65.4 °F

  • Highest 1 July, 2025

    78.8 °F

Climate (2020–Present)

Fallbrook Community Airpark (4.3 miles)

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

  • Average Low 2020–2025

    53.5 °F

  • Average 2020–2025

    61.9 °F

  • Average High 2020–2025

    74.3 °F
Get WillyWeather+ to remove ads