Bostonia Weather Forecast

    • 59
    • 83

    Increasing Clouds

    • 60
    • 81

    Partly Sunny

    • 58
    • 79

    Partly Sunny

    • 60
    • 81

    Patchy Fog

    • 62
    • 83

    Patchy Fog

    • 63
    • 86

    Patchy Fog

    • 64
    • 88

    Mostly Sunny

Today 24 Jul San Diego County Inland Valleys

Partly cloudy with patchy fog this morning. Becoming mostly sunny. Highs 77 to 81 in the western Valleys to 80 to 85 near the Foothills. Areas of Winds west to 10 Mph. Becoming 10 to 15 Mph this afternoon.

Tonight 24 Jul San Diego County Inland Valleys

Partly cloudy. Patchy fog overnight. Lows 50 to 58. Areas of Winds west 10 to 15 Mph with Gusts to 25 Mph this evening becoming light.

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Bostonia Temperature Statistics

July Temperature

Gillespie Field Airport (1.2 miles)

  • Lowest 5 July, 2025

    59 °F

  • Average July

    68.2 °F

  • Highest 9 July, 2025

    91.4 °F

Climate (2020–Present)

Gillespie Field Airport (1.2 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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