Lake Jennings Weather Forecast

    • 64
    • 86

    Increasing Clouds

    • 66
    • 87

    Partly Sunny

    • 67
    • 88

    Partly Sunny

    • 70
    • 92

    Mostly Sunny

    • 71
    • 97

    Hot

    • 68
    • 92

    Slight Chance Rain Showers

    • 68
    • 89

    Partly Sunny

Today 11 Jul San Diego County Inland Valleys

Mostly cloudy in the morning. Becoming partly cloudy. Highs 79 to 83 in the western Valleys to 88 to 93 near the Foothills. Light Winds becoming west 10 Mph in the afternoon.

Tonight 11 Jul San Diego County Inland Valleys

Partly cloudy. Lows 60 to 65. Light Winds.

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Lake Jennings Temperature Statistics

July Temperature

Gillespie Field Airport (5 miles)

  • Lowest 2 July, 2026

    60.8 °F

  • Average July

    68.3 °F

  • Highest 4 July, 2026

    91.4 °F

Climate (2021–2026)

Gillespie Field Airport (5 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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