Jamul Weather Forecast

    • 60
    • 83

    Partly Sunny

    • 60
    • 83

    Mostly Sunny

    • 61
    • 82

    Mostly Sunny

    • 62
    • 84

    Mostly Sunny

    • 61
    • 85

    Mostly Sunny

Today 5 Jul San Diego County Inland Valleys

Partly cloudy this morning. Becoming mostly sunny. Highs 79 to 84 in the western Valleys to 84 to 89 near the Foothills. Areas of Winds west to 10 Mph.

Tonight 5 Jul San Diego County Inland Valleys

Mostly clear in the evening. Becoming partly cloudy overnight with patchy fog. Lows 57 to 62. Areas of Winds west to 10 Mph in the evening becoming light.

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Jamul Temperature Statistics

July Temperature

Gillespie Field Airport (9.3 miles)

  • Lowest 2 July, 2026

    60.8 °F

  • Average July

    66.1 °F

  • Highest 2 July, 2026

    80.6 °F

Climate (2021–2026)

Gillespie Field Airport (9.3 miles)

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  • Average Low 2021–2026

    53.5 °F

  • Average 2021–2026

    60.5 °F

  • Average High 2021–2026

    76.2 °F
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