Jamul Weather Forecast

    • 65
    • 86

    Mostly Sunny

    • 66
    • 88

    Mostly Sunny

    • 65
    • 87

    Patchy Fog

    • 64
    • 86

    Partly Sunny

    • 64
    • 86

    Mostly Sunny

    • 63
    • 84

    Mostly Sunny

Today 7 Aug San Diego County Inland Valleys

Mostly sunny. Highs 85 to 89 in the western Valleys to 89 to 94 near the Foothills. Areas of Winds southwest to 10 Mph becoming west this afternoon.

Tonight 7 Aug San Diego County Inland Valleys

Mostly clear in the evening. Becoming partly cloudy overnight with patchy fog. Lows 64 to 69. Areas of Winds west to 10 Mph in the evening becoming light.

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  • Temperature Real-Time

Jamul Temperature Statistics

August Temperature

Gillespie Field Airport (9.3 miles)

  • Lowest 3 August, 2026

    66.2 °F

  • Average August

    72.8 °F

  • Highest 2 August, 2026

    93.2 °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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