Rainbow Weather Forecast

    • 56
    • 85

    Sunny

    • 53
    • 80

    Partly Sunny

    • 53
    • 74

    Partly Sunny

    • 57
    • 81

    Sunny

    • 59
    • 84

    Mostly Sunny

    • 56
    • 80

    Partly Sunny

Today 31 Jan San Diego County Inland Valleys

Sunny. Highs 83 to 86 in the western Valleys to 76 to 81 near the Foothills. Areas of Winds east 10 to 15 Mph with Gusts to 30 Mph.

Tonight 31 Jan San Diego County Inland Valleys

Mostly clear. Lows 46 to 55 in wind Sheltered Areas to 52 to 59 in warmer Locations. Areas of Winds east 10 to 15 Mph. Gusts to 30 Mph in the evening.

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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

    58.9 °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

    74.2 °F
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