La Mesa Weather Forecast

    • 58
    • 81

    Increasing Clouds

    • 62
    • 87

    Mostly Cloudy

    • 59
    • 85

    Partly Sunny

    • 57
    • 80

    Mostly Cloudy

    • 57
    • 74

    Mostly Cloudy

    • 55
    • 71

    Mostly Cloudy

Today 27 Mar San Diego County Inland Valleys

Mostly sunny. Highs 81 to 86 in the western Valleys to 86 to 91 near the Foothills. Light Winds becoming west 10 Mph this afternoon.

Tonight 27 Mar San Diego County Inland Valleys

Partly cloudy. Lows 50 to 60 in wind Sheltered Areas to 56 to 64 in warmer Locations. Light Winds.

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  • Temperature Real-Time

La Mesa Temperature Statistics

March Temperature

Gillespie Field Airport (5 miles)

  • Lowest 6 March, 2026

    41 °F

  • Average March

    61 °F

  • Highest 20 March, 2026

    100.4 °F

Climate (2021–Present)

Gillespie Field Airport (5 miles)

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  • Average Low 2021–2026

    53.3 °F

  • Average 2021–2026

    60.4 °F

  • Average High 2021–2026

    76.2 °F
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