Calimesa Weather Forecast

    • 63
    • 92

    Sunny

    • 66
    • 92

    Mostly Sunny

    • 70
    • 96

    Mostly Sunny

    • 72
    • 99

    Hot

    • 71
    • 100

    Hot

    • 71
    • 98

    Hot

Today 18 Aug San Bernardino and Riverside County Valleys-The Inland Empire

Mostly sunny. Highs 89 to 97. Light Winds becoming west 10 to 15 Mph in the afternoon.

Tonight 18 Aug San Bernardino and Riverside County Valleys-The Inland Empire

Clear. Lows 59 to 65. Areas of Winds west 10 to 15 Mph in the evening becoming light.

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Calimesa Temperature Statistics

August Temperature

San Bernardino Intl. Airport (11.8 miles)

  • Lowest 2 August, 2025

    61.9 °F

  • Average August

    76.3 °F

  • Highest 7 August, 2025

    105.8 °F

Climate (2020–Present)

San Bernardino Intl. Airport (11.8 miles)

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  • Average Low 2020–2025

    54.1 °F

  • Average 2020–2025

    63.2 °F

  • Average High 2020–2025

    80.5 °F
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