Jamul Weather Forecast

    • 52
    • 67

    Partly Sunny

    • 55
    • 74

    Partly Sunny

    • 57
    • 80

    Mostly Sunny

    • 56
    • 79

    Mostly Sunny

    • 56
    • 76

    Mostly Sunny

    • 57
    • 76

    Mostly Sunny

Today 29 May San Diego County Inland Valleys

Areas of fog this morning. Mostly cloudy with a slight chance of Showers this Morning, then partly cloudy this afternoon. Highs around 69 in the western Valleys to 62 to 67 near the Foothills. Areas of Winds west to 10 Mph. Becoming 10 to 15 Mph with Gusts to 25 Mph this afternoon. Chance of measurable precipitation 20 percent.

Tonight 29 May San Diego County Inland Valleys

Partly cloudy. Patchy fog overnight. Lows 47 to 53. Areas of Winds west 10 to 15 Mph with Gusts to 25 Mph in the evening becoming light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Jamul Temperature Statistics

May Temperature

Gillespie Field Airport (9.3 miles)

  • Lowest 6 May, 2026

    51.8 °F

  • Average May

    62.8 °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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