Grand Weather Forecast

    • 44
    • 73

    Partly Sunny

    • 46
    • 72

    Mostly Sunny

    • 49
    • 78

    Mostly Sunny

    • 50
    • 80

    Mostly Sunny

    • 49
    • 80

    Mostly Sunny

    • 46
    • 76

    Mostly Sunny

Today 3 Dec San Bernardino and Riverside County Valleys-The Inland Empire

Partly cloudy. Highs 72 to 76. Light Winds becoming west to 10 Mph this afternoon.

Tonight 3 Dec San Bernardino and Riverside County Valleys-The Inland Empire

Mostly clear. Colder. Lows 39 to 43 in wind Sheltered Areas to 42 to 49 in warmer Locations. Light Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grand Temperature Statistics

December Temperature

Riverside Municipal Airport (1.9 miles)

  • Lowest 1 December, 2024

    51.1 °F

  • Average December

    61.6 °F

  • Highest 1 December, 2024

    77 °F

Climate (2019–Present)

Riverside Municipal Airport (1.9 miles)

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  • Average Low 2019–2024

    54.7 °F

  • Average 2019–2024

    66.4 °F

  • Average High 2019–2024

    79.7 °F
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