Sierra Weather Forecast

    • 43
    • 60

    Partly Sunny

    • 44
    • 66

    Partly Sunny

    • 53
    • 69

    Chance Rain

    • 53
    • 65

    Rain

    • 50
    • 68

    Slight Chance Rain

    • 50
    • 71

    Partly Sunny

    • 52
    • 73

    Mostly Cloudy

Today 21 Feb Santa Clara Valley Including San Jose

Sunny. Highs around 60. South Winds 10 to 15 Mph.

Tonight 21 Feb Santa Clara Valley Including San Jose

Mostly clear in the evening then becoming partly cloudy. Lows near 40. Southeast Winds 5 to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sierra Temperature Statistics

February Temperature

San Jose / Reid / Hillv (1.9 miles)

  • Lowest 18 February, 2026

    37.4 °F

  • Average February

    55.1 °F

  • Highest 6 February, 2026

    73.4 °F

Climate (2021–Present)

San Jose / Reid / Hillv (1.9 miles)

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  • Average Low 2021–2026

    51.7 °F

  • Average 2021–2026

    63.5 °F

  • Average High 2021–2026

    72.1 °F
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