Boulder Weather Forecast

    • 54
    • 78

    Sunny

    • 59
    • 85

    Sunny

    • 59
    • 86

    Sunny

    • 57
    • 84

    Mostly Sunny

    • 54
    • 81

    Mostly Sunny

    • 55
    • 79

    Mostly Sunny

Today 8 May Santa Clara Valley Including San Jose

Sunny. Highs in the upper 70s. Northwest Winds 10 to 20 Mph.

Tonight 8 May Santa Clara Valley Including San Jose

Clear. Lows in the lower 50s. Northwest Winds 10 to 20 Mph decreasing to around 5 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Boulder Temperature Statistics

May Temperature

San Jose / Reid / Hillv (4.3 miles)

  • Lowest 5 May, 2024

    44.6 °F

  • Average May

    60.7 °F

  • Highest 1 May, 2024

    77 °F

Climate (2019–Present)

San Jose / Reid / Hillv (4.3 miles)

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  • Average Low 2019–2024

    51.7 °F

  • Average 2019–2024

    63.6 °F

  • Average High 2019–2024

    72.3 °F
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