Jamul Weather Forecast

    • 63
    • 84

    Becoming Sunny

    • 64
    • 84

    Mostly Sunny

    • 65
    • 86

    Mostly Sunny

    • 65
    • 87

    Mostly Sunny

    • 65
    • 88

    Mostly Sunny

    • 64
    • 87

    Mostly Sunny

Today 4 Aug San Diego County Inland Valleys

Patchy fog this morning. Mostly sunny. Highs 82 to 87 in the western Valleys to 90 to 95 near the Foothills. Light Winds becoming west 10 to 15 Mph this afternoon.

Tonight 4 Aug San Diego County Inland Valleys

Mostly clear in the evening. Becoming partly cloudy overnight with patchy fog. Lows 61 to 66. Areas of Winds west to 10 Mph in the evening becoming light.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Jamul Temperature Statistics

August Temperature

Gillespie Field Airport (9.3 miles)

  • Lowest 1 August, 2026

    68 °F

  • Average August

    74.2 °F

  • Highest 2 August, 2026

    93.2 °F

Climate (2021–2026)

Gillespie Field Airport (9.3 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    53.5 °F

  • Average 2021–2026

    60.5 °F

  • Average High 2021–2026

    76.2 °F
Get WillyWeather+ to remove ads