Rainbow Weather Forecast

    • 51
    • 74

    Decreasing Clouds

    • 54
    • 79

    Sunny

    • 56
    • 82

    Sunny

    • 54
    • 80

    Mostly Sunny

    • 52
    • 76

    Partly Sunny

    • 51
    • 71

    Mostly Sunny

Today 28 Jan San Diego County Inland Valleys

Partly cloudy. Highs 70 to 75. Light Winds becoming northwest 10 Mph this afternoon.

Tonight 28 Jan San Diego County Inland Valleys

Mostly cloudy in the evening. Becoming partly cloudy. Lows 41 to 51 in wind Sheltered Areas to 47 to 54 in warmer Locations. Areas of Winds east 10 to 15 Mph. Gusts to 25 Mph overnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Rainbow Temperature Statistics

January Temperature

Fallbrook Community Airpark (6.8 miles)

  • Lowest 8 January, 2026

    44.6 °F

  • Average January

    58.7 °F

  • Highest 14 January, 2026

    84.2 °F

Climate (2021–Present)

Fallbrook Community Airpark (6.8 miles)

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  • Average Low 2021–2026

    53.5 °F

  • Average 2021–2026

    61.8 °F

  • Average High 2021–2026

    74.1 °F
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