Jamul Weather Forecast

    • 42
    • 62

    Sunny

    • 47
    • 67

    Breezy

    • 49
    • 71

    Blowing Dust

    • 49
    • 73

    Sunny

    • 52
    • 76

    Sunny

    • 54
    • 78

    Sunny

Today 9 Jan San Diego County Inland Valleys

Sunny. Highs 63 to 66 in the western Valleys to 54 to 59 near the Foothills. Areas of Winds northeast 15 to 25 Mph with Gusts to 45 Mph. Becoming 25 to 35 Mph with Gusts to 55 Mph this afternoon.

Tonight 9 Jan San Diego County Inland Valleys

Clear. Areas of blowing dust. Lows 41 to 45. Areas of Winds east 30 to 40 Mph. Gusts to 65 Mph. Becoming 60 Mph overnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Jamul Temperature Statistics

January Temperature

Gillespie Field Airport (9.3 miles)

  • Lowest 6 January, 2026

    50 °F

  • Average January

    58.9 °F

  • Highest 2 January, 2026

    71.6 °F

Climate (2021–Present)

Gillespie Field Airport (9.3 miles)

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  • Average Low 2021–2026

    53.2 °F

  • Average 2021–2026

    60.2 °F

  • Average High 2021–2026

    75.8 °F
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