Rainbow Weather Forecast

    • 48
    • 67

    Mostly Cloudy

    • 45
    • 70

    Becoming Sunny

    • 48
    • 72

    Mostly Sunny

    • 50
    • 72

    Mostly Cloudy

    • 51
    • 74

    Mostly Sunny

    • 53
    • 77

    Mostly Sunny

    • 53
    • 78

    Partly Sunny

Today 25 Jan San Diego County Inland Valleys

Partly cloudy this morning. Becoming mostly sunny. Highs around 70 in the western Valleys to 62 to 67 near the Foothills. Areas of Winds northeast to 10 Mph becoming west 10 Mph this afternoon.

Tonight 25 Jan San Diego County Inland Valleys

Partly cloudy this evening. Becoming cloudy. Lows 39 to 48 in wind Sheltered Areas to 45 to 50 in warmer Locations. Areas of Winds east 10 to 15 Mph. Gusts to 30 Mph overnight.

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  • Temperature Real-Time

Rainbow Temperature Statistics

January Temperature

Fallbrook Community Airpark (6.8 miles)

  • Lowest 8 January, 2026

    44.6 °F

  • Average January

    59.1 °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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