Lake Jennings Weather Forecast

    • 59
    • 80

    Patchy Fog

    • 59
    • 81

    Partly Sunny

    • 60
    • 84

    Mostly Sunny

    • 62
    • 86

    Mostly Sunny

    • 65
    • 90

    Mostly Sunny

    • 66
    • 92

    Partly Sunny

    • 66
    • 91

    Slight Chance Thunderstorms

Today 12 Sep San Diego County Inland Valleys

Partly cloudy this morning. Becoming sunny. Highs 75 to 80. Areas of Winds west to 10 Mph. Becoming 10 to 15 Mph this afternoon.

Tonight 12 Sep San Diego County Inland Valleys

Partly cloudy this evening. Becoming mostly cloudy. Patchy fog overnight. Lows 53 to 59. Areas of Winds west to 10 Mph this evening becoming light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Jennings Temperature Statistics

September Temperature

Gillespie Field Airport (5 miles)

  • Lowest 6 September, 2025

    62.6 °F

  • Average September

    72.7 °F

  • Highest 7 September, 2025

    95 °F

Climate (2020–Present)

Gillespie Field Airport (5 miles)

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  • Average Low 2020–2025

    52.9 °F

  • Average 2020–2025

    60.2 °F

  • Average High 2020–2025

    76 °F
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