San Tomas Park Weather Forecast

    • 47
    • 64

    Areas Fog

    • 53
    • 65

    Rain

    • 55
    • 62

    Rain

    • 54
    • 60

    Rain

    • 50
    • 60

    Rain Likely

    • 48
    • 59

    Rain

    • 47
    • 58

    Rain Likely

Today 18 Dec Santa Clara Valley Including San Jose

Mostly cloudy late in the morning then becoming partly cloudy. Patchy fog late in the morning. Highs in the lower 60s. Light Winds. Becoming northwest around 5 Mph in the afternoon.

Tonight 18 Dec Santa Clara Valley Including San Jose

Partly cloudy in the evening then becoming mostly cloudy. Patchy fog after midnight. Lows in the upper 40s. Light Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

San Tomas Park Temperature Statistics

December Temperature

San Jose, San Jose International Airport (5.6 miles)

  • Lowest 13 December, 2025

    37 °F

  • Average December

    48.6 °F

  • Highest 3 December, 2025

    64.9 °F

Climate (2020–Present)

San Jose, San Jose International Airport (5.6 miles)

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  • Average Low 2020–2025

    51.9 °F

  • Average 2020–2025

    61.5 °F

  • Average High 2020–2025

    72.4 °F
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