La Mesa Weather Forecast

    • 57
    • 76

    Chance Rain Showers

    • 55
    • 71

    Rain Showers Likely

    • 53
    • 67

    Rain Showers Likely

    • 50
    • 64

    Slight Chance Rain Showers

    • 50
    • 70

    Mostly Sunny

    • 52
    • 73

    Partly Sunny

Today 10 Apr San Diego County Inland Valleys

Partly cloudy with patchy fog this morning. Becoming mostly sunny. Highs 73 to 78. Areas of Winds southwest to 10 Mph becoming west with Gusts to 25 Mph this afternoon.

Tonight 10 Apr San Diego County Inland Valleys

Partly cloudy this Evening, then mostly cloudy with a chance of Showers overnight. Lows 49 to 55. Areas of Winds west 10 to 15 Mph this evening becoming light. Chance of measurable precipitation 30 percent.

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La Mesa Temperature Statistics

April Temperature

Gillespie Field Airport (5 miles)

  • Lowest 4 April, 2026

    46.4 °F

  • Average April

    61.7 °F

  • Highest 4 April, 2026

    87.8 °F

Climate (2021–Present)

Gillespie Field Airport (5 miles)

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  • Average Low 2021–2026

    53.4 °F

  • Average 2021–2026

    60.5 °F

  • Average High 2021–2026

    76.2 °F
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