Rancho Penasquitos Weather Forecast

    • 51
    • 68

    Increasing Clouds

    • 53
    • 68

    Mostly Cloudy

    • 56
    • 64

    Rain Showers

    • 55
    • 64

    Rain Showers

    • 53
    • 65

    Rain Showers Likely

    • 50
    • 64

    Rain Showers Likely

Today 21 Dec San Diego County Inland Valleys

Partly cloudy this morning. Becoming mostly sunny. Highs 69 to 74 in the western Valleys to 73 to 78 near the Foothills. Light Winds becoming west 10 Mph this afternoon.

Tonight 21 Dec San Diego County Inland Valleys

Partly cloudy. Patchy fog overnight. Lows 42 to 51 in wind Sheltered Areas to 48 to 56 in warmer Locations. Light Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Rancho Penasquitos Temperature Statistics

December Temperature

San Diego, Miramar MCAS/Mitscher Field Airport (6.8 miles)

  • Lowest 5 December, 2025

    43 °F

  • Average December

    57.6 °F

  • Highest 10 December, 2025

    82 °F

Climate (2020–Present)

San Diego, Miramar MCAS/Mitscher Field Airport (6.8 miles)

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  • Average Low 2020–2025

    52.7 °F

  • Average 2020–2025

    61.7 °F

  • Average High 2020–2025

    72.1 °F
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