Rainbow Weather Forecast

    • 54
    • 84

    Mostly Sunny

    • 56
    • 82

    Partly Sunny

    • 53
    • 77

    Partly Sunny

    • 54
    • 78

    Mostly Sunny

    • 56
    • 77

    Partly Sunny

    • 53
    • 69

    Chance Rain Showers

Today 4 Apr San Diego County Inland Valleys

Mostly sunny. Highs around 84 in the western Valleys to 78 to 83 near the Foothills. Areas of Winds east 10 to 15 Mph with Gusts to 30 Mph becoming west with Gusts to 25 Mph this afternoon.

Tonight 4 Apr San Diego County Inland Valleys

Mostly clear. Lows 46 to 54 in wind Sheltered Areas to 51 to 57 in warmer Locations. Areas of Winds southwest to 10 Mph in the evening becoming light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Rainbow Temperature Statistics

April Temperature

Fallbrook Community Airpark (6.8 miles)

  • Lowest 2 April, 2026

    50 °F

  • Average April

    60.3 °F

  • Highest 1 April, 2026

    71.6 °F

Climate (2021–Present)

Fallbrook Community Airpark (6.8 miles)

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  • Average Low 2021–2026

    53.7 °F

  • Average 2021–2026

    62 °F

  • Average High 2021–2026

    74.5 °F
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