La Mesa Weather Forecast

    • 80
    • 97

    Hot

    • 79
    • 98

    Hot

    • 80
    • 98

    Hot

    • 81
    • 99

    Hot

    • 80
    • 100

    Hot

    • 80
    • 100

    Hot

Today 18 Aug Coastal Harris

Mostly sunny. Hot with Highs in the mid 90s. Southwest Winds around 5 Mph, becoming south 10 to 15 Mph this afternoon. Heat index Values up to 107.

Tonight 18 Aug Coastal Harris

Partly cloudy in the Evening, then clearing. Humid with Lows in the upper 70s. South Winds 10 to 15 Mph. Heat index Values up to 106 early in the evening.

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La Mesa Temperature Statistics

August Temperature

Houston / Ellington (5 miles)

  • Lowest 4 August, 2026

    75.2 °F

  • Average August

    85.3 °F

  • Highest 1 August, 2026

    95 °F

Climate (2021–2026)

Houston / Ellington (5 miles)

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  • Average Low 2021–2026

    64.3 °F

  • Average 2021–2026

    72 °F

  • Average High 2021–2026

    80.4 °F
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