Sunnyvale Weather Forecast

    • 65
    • 104

    Hot

    • 62
    • 104

    Hot

    • 56
    • 90

    Mostly Sunny

    • 57
    • 91

    Mostly Sunny

    • 58
    • 93

    Mostly Sunny

    • 59
    • 95

    Sunny

Today 30 May Southern Sacramento Valley

Sunny, warmer. Highs 98 to 104. West Winds up to 10 Mph.

Tonight 30 May Southern Sacramento Valley

Clear. Lows 60 to 70. Southwest Winds up to 10 Mph shifting to the south after midnight.

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Sunnyvale Temperature Statistics

May Temperature

Sacramento Mather Airport (1.9 miles)

  • Lowest 14 May, 2025

    44.6 °F

  • Average May

    66 °F

  • Highest 9 May, 2025

    93.2 °F

Climate (2020–Present)

Sacramento Mather Airport (1.9 miles)

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  • Average Low 2020–2025

    48.6 °F

  • Average 2020–2025

    61.9 °F

  • Average High 2020–2025

    75.6 °F
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