Jamul Weather Forecast

    • 52
    • 70

    Increasing Clouds

    • 52
    • 72

    Partly Sunny

    • 53
    • 77

    Partly Sunny

    • 54
    • 77

    Mostly Sunny

    • 54
    • 78

    Mostly Sunny

    • 54
    • 77

    Mostly Sunny

    • 54
    • 76

    Mostly Sunny

Today 17 May San Diego County Inland Valleys

Mostly cloudy this morning. Becoming partly cloudy. Patchy fog this morning. Highs 69 to 74. Areas of Winds south 10 to 15 Mph with Gusts to 25 Mph.

Tonight 17 May San Diego County Inland Valleys

Cloudy. Patchy fog. Lows 48 to 55. Areas of Winds south 10 to 15 Mph.

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  • Temperature Real-Time

Jamul Temperature Statistics

May Temperature

Gillespie Field Airport (9.3 miles)

  • Lowest 6 May, 2026

    51.8 °F

  • Average May

    62.5 °F

  • Highest 11 May, 2026

    86 °F

Climate (2021–Present)

Gillespie Field Airport (9.3 miles)

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  • Average Low 2021–2026

    53.4 °F

  • Average 2021–2026

    60.5 °F

  • Average High 2021–2026

    76.2 °F
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