La Mesa Weather Forecast

    • 61
    • 79

    Increasing Clouds

    • 62
    • 79

    Partly Sunny

    • 63
    • 82

    Partly Sunny

    • 65
    • 85

    Patchy Fog

    • 64
    • 87

    Patchy Fog

    • 63
    • 82

    Partly Sunny

    • 62
    • 79

    Mostly Sunny

Today 6 Jul San Diego County Inland Valleys

Partly cloudy this morning. Becoming mostly sunny. Highs 79 to 83 in the western Valleys to 87 to 92 near the Foothills. Light Winds becoming west 10 Mph this afternoon.

Tonight 6 Jul San Diego County Inland Valleys

Mostly clear this evening. Becoming partly cloudy. Patchy fog overnight. Lows 53 to 60. Areas of Winds west to 10 Mph this evening becoming light.

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La Mesa Temperature Statistics

July Temperature

Gillespie Field Airport (5 miles)

  • Lowest 4 July, 2025

    60.8 °F

  • Average July

    66.7 °F

  • Highest 4 July, 2025

    89.6 °F

Climate (2020–Present)

Gillespie Field Airport (5 miles)

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  • Average Low 2020–2025

    52.9 °F

  • Average 2020–2025

    60.2 °F

  • Average High 2020–2025

    76.1 °F
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