Bostonia Weather Forecast

    • 36
    • 62

    Decreasing Clouds

    • 40
    • 66

    Mostly Sunny

    • 44
    • 70

    Partly Sunny

    • 46
    • 74

    Mostly Sunny

    • 44
    • 76

    Partly Sunny

    • 45
    • 68

    Chance Rain Showers

    • 42
    • 65

    Chance Rain Showers

Today 30 Jan San Diego County Inland Valleys

Partly cloudy with a slight chance of Showers this Morning, then mostly sunny this afternoon. Highs 58 to 63. Light Winds becoming west 10 Mph this afternoon. Chance of measurable precipitation 20 percent.

Tonight 30 Jan San Diego County Inland Valleys

Mostly clear. Colder. Lows 30 to 39 in wind Sheltered Areas to 35 to 42 in warmer Locations. Light Winds.

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Bostonia Temperature Statistics

January Temperature

Gillespie Field Airport (1.2 miles)

  • Lowest 14 January, 2025

    30.2 °F

  • Average January

    48.6 °F

  • Highest 22 January, 2025

    82.4 °F

Climate (2020–Present)

Gillespie Field Airport (1.2 miles)

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  • Average Low 2020–2025

    53 °F

  • Average 2020–2025

    60.3 °F

  • Average High 2020–2025

    76 °F
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