Crestmore Weather Forecast

    • 62
    • 90

    Mostly Sunny

    • 64
    • 91

    Mostly Sunny

    • 67
    • 96

    Sunny

    • 73
    • 101

    Hot

    • 73
    • 102

    Hot

    • 72
    • 101

    Hot

    • 71
    • 100

    Hot

Today 29 Sep San Bernardino and Riverside County Valleys-The Inland Empire

Sunny, hot. Highs 94 to 100.

Tonight 29 Sep San Bernardino and Riverside County Valleys-The Inland Empire

Mostly clear. Lows 55 to 61. Areas of Winds south 10 to 15 Mph with Gusts to 25 Mph becoming southeast overnight.

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Crestmore Temperature Statistics

September Temperature

Riverside Municipal Airport (6.2 miles)

  • Lowest 5 September, 2026

    59.6 °F

  • Average September

    79 °F

  • Highest 9 September, 2026

    110.6 °F

Climate (2021–2026)

Riverside Municipal Airport (6.2 miles)

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  • Average Low 2021–2026

    55 °F

  • Average 2021–2026

    67.3 °F

  • Average High 2021–2026

    80.4 °F
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