Rainbow Weather Forecast

    • 49
    • 72

    Increasing Clouds

    • 50
    • 72

    Partly Sunny

    • 53
    • 78

    Sunny

    • 56
    • 81

    Mostly Sunny

    • 55
    • 81

    Partly Sunny

    • 52
    • 75

    Partly Sunny

Today 27 Jan San Diego County Inland Valleys

Mostly sunny. Highs 71 to 74 in the western Valleys to 67 to 72 near the Foothills. Areas of Winds east 10 to 15 Mph with Gusts to 25 Mph becoming west this afternoon.

Tonight 27 Jan San Diego County Inland Valleys

Partly cloudy. Lows 40 to 49 in wind Sheltered Areas to 46 to 52 in warmer Locations. Light Winds becoming east to 10 Mph overnight.

Graph Plots Open in Graphs

  • 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)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    53.5 °F

  • Average 2021–2026

    61.8 °F

  • Average High 2021–2026

    74.1 °F
Get WillyWeather+ to remove ads