Jamul Weather Forecast

    • 44
    • 54

    Rain

    • 40
    • 55

    Becoming Sunny

    • 46
    • 66

    Partly Sunny

    • 50
    • 70

    Mostly Sunny

    • 53
    • 75

    Partly Sunny

    • 54
    • 75

    Partly Sunny

    • 53
    • 72

    Partly Sunny

Today 19 Feb San Diego County Inland Valleys

Numerous Showers this Morning, then rain this afternoon. Rain may be heavy at Times this afternoon. Highs around 57 in the western Valleys to 47 to 52 near the Foothills. Areas of Winds south 10 to 15 Mph with Gusts to 25 Mph becoming southwest 15 to 25 Mph with Gusts to 40 Mph this afternoon.

Tonight 19 Feb San Diego County Inland Valleys

Mostly cloudy. Showers. Lows 34 to 42 in wind Sheltered Areas to 39 to 43 in warmer Locations. Areas of Winds west 10 to 20 Mph. Gusts to 35 Mph. Becoming 25 Mph overnight.

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Jamul Temperature Statistics

February Temperature

Gillespie Field Airport (9.3 miles)

  • Lowest 1 February, 2026

    42.8 °F

  • Average February

    56 °F

  • Highest 4 February, 2026

    87.8 °F

Climate (2021–Present)

Gillespie Field Airport (9.3 miles)

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  • Average Low 2021–2026

    53.2 °F

  • Average 2021–2026

    60.3 °F

  • Average High 2021–2026

    75.9 °F
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