Rainbow Weather Forecast

    • 58
    • 78

    Sunny

    • 64
    • 91

    Sunny

    • 62
    • 93

    Mostly Sunny

    • 58
    • 86

    Mostly Sunny

    • 58
    • 81

    Mostly Sunny

    • 59
    • 84

    Mostly Sunny

    • 59
    • 85

    Mostly Sunny

Today 27 Oct San Diego County Inland Valleys

Mostly sunny. Highs 76 to 81. Light Winds becoming west 10 Mph this afternoon.

Tonight 27 Oct San Diego County Inland Valleys

Mostly clear. Lows 56 to 61. Light Winds becoming east to 10 Mph overnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Rainbow Temperature Statistics

October Temperature

Fallbrook Community Airpark (6.8 miles)

  • Lowest 14 October, 2025

    51.8 °F

  • Average October

    63.6 °F

  • Highest 18 October, 2025

    86 °F

Climate (2020–Present)

Fallbrook Community Airpark (6.8 miles)

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  • Average Low 2020–2025

    53.4 °F

  • Average 2020–2025

    61.7 °F

  • Average High 2020–2025

    74.1 °F
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