La Mesa Weather Forecast

    • 62
    • 91

    Mostly Sunny

    • 59
    • 86

    Partly Sunny

    • 54
    • 83

    Partly Sunny

    • 50
    • 70

    Partly Sunny

    • 51
    • 71

    Partly Sunny

    • 52
    • 73

    Partly Sunny

Today 27 Feb San Diego County Inland Valleys

Sunny, warmer. Highs 88 to 93. Areas of Winds east 10 to 15 Mph becoming west this afternoon.

Tonight 27 Feb San Diego County Inland Valleys

Mostly clear. Lows 59 to 65 in wind Sheltered Areas to 61 to 69 in warmer Locations. Light Winds.

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La Mesa Temperature Statistics

February Temperature

Gillespie Field Airport (5 miles)

  • Lowest 21 February, 2026

    37.4 °F

  • Average February

    54.9 °F

  • Highest 4 February, 2026

    87.8 °F

Climate (2021–Present)

Gillespie Field Airport (5 miles)

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  • Average Low 2021–2026

    53.2 °F

  • Average 2021–2026

    60.3 °F

  • Average High 2021–2026

    75.9 °F
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