Jamul Weather Forecast

    • 56
    • 77

    Patchy Fog

    • 57
    • 73

    Mostly Cloudy

    • 54
    • 70

    Partly Sunny

    • 55
    • 72

    Mostly Sunny

    • 54
    • 73

    Mostly Sunny

    • 55
    • 74

    Mostly Sunny

Today 26 Jun San Diego County Inland Valleys

Partly cloudy with patchy fog in the morning. Becoming sunny. Highs 74 to 79 in the western Valleys to 79 to 84 near the Foothills. Areas of Winds southwest to 10 Mph becoming west in the afternoon.

Tonight 26 Jun San Diego County Inland Valleys

Mostly clear in the evening. Becoming partly cloudy overnight with patchy fog. Lows 53 to 59. Areas of Winds southwest to 10 Mph in the evening becoming light.

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Jamul Temperature Statistics

June Temperature

Gillespie Field Airport (9.3 miles)

  • Lowest 9 June, 2026

    55.4 °F

  • Average June

    66.6 °F

  • Highest 12 June, 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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