Bostonia Weather Forecast

    • 56
    • 77

    Increasing Clouds

    • 57
    • 76

    Mostly Cloudy

    • 57
    • 79

    Partly Sunny

    • 60
    • 85

    Partly Sunny

    • 61
    • 85

    Partly Sunny

    • 59
    • 81

    Partly Sunny

    • 56
    • 75

    Mostly Sunny

Today 27 May San Diego County Inland Valleys

Partly cloudy early this morning. Becoming mostly sunny. Patchy fog early this morning. Highs 73 to 76 in the western Valleys to 76 to 81 near the Foothills. Areas of Winds west to 10 Mph. Becoming 10 to 15 Mph this afternoon.

Tonight 27 May San Diego County Inland Valleys

Partly cloudy. Patchy fog overnight. Lows 48 to 55. Areas of Winds southwest to 10 Mph this evening becoming light.

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Bostonia Temperature Statistics

May Temperature

Gillespie Field Airport (1.2 miles)

  • Lowest 19 May, 2025

    50 °F

  • Average May

    62 °F

  • Highest 10 May, 2025

    96.8 °F

Climate (2020–Present)

Gillespie Field Airport (1.2 miles)

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  • Average Low 2020–2025

    52.9 °F

  • Average 2020–2025

    60.3 °F

  • Average High 2020–2025

    76.1 °F
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