Arnold Reservoir Weather Forecast

    • 56
    • 82

    Increasing Clouds

    • 55
    • 77

    Mostly Cloudy

    • 54
    • 76

    Partly Sunny

    • 55
    • 78

    Mostly Sunny

    • 56
    • 78

    Mostly Sunny

    • 56
    • 80

    Mostly Sunny

    • 57
    • 81

    Sunny

Today 5 Jun San Bernardino and Riverside County Valleys-The Inland Empire

Mostly sunny. Highs 87 to 94. Areas of Winds west to 10 Mph becoming southwest with Gusts to 25 Mph this afternoon.

Tonight 5 Jun San Bernardino and Riverside County Valleys-The Inland Empire

Mostly clear this evening. Becoming partly cloudy. Lows 55 to 59. Areas of Winds west 10 Mph with Gusts to 25 Mph this evening becoming light.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Arnold Reservoir Temperature Statistics

June Temperature

Brackett Field Airport (6.8 miles)

  • Lowest 3 June, 2026

    57.2 °F

  • Average June

    71.8 °F

  • Highest 3 June, 2026

    84.2 °F

Climate (2021–Present)

Brackett Field Airport (6.8 miles)

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

  • Average Low 2021–2026

    56 °F

  • Average 2021–2026

    68 °F

  • Average High 2021–2026

    76 °F
Get WillyWeather+ to remove ads