San Mateo Weather Forecast

    • 80
    • 89

    Rain Showers

    • 80
    • 89

    Rain Showers

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    • 89

    Rain Showers

    • 79
    • 85

    Rain Showers

    • 79
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    Rain Showers

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    • 88

    Rain Showers

Today 22 Jul San Juan and Vicinity

Hazy in the morning. Partly cloudy with isolated Showers in the Morning, then variably cloudy with scattered Showers with isolated Thunderstorms in the afternoon. Highs around 91. East Winds 15 to 20 Mph. Chance of rain 50 percent.

Tonight 22 Jul San Juan and Vicinity

Clear in the Evening, then becoming partly cloudy. Isolated Showers. Hazy. Lows around 82. East Winds 10 to 15 Mph. Chance of rain 20 percent.

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San Mateo Temperature Statistics

July Temperature

San Juan Fernando Luis Ribas Dominicci (1.9 miles)

  • Lowest 1 July, 2025

    78.8 °F

  • Average July

    83.9 °F

  • Highest 4 July, 2025

    87.8 °F

Climate (2020–Present)

San Juan Fernando Luis Ribas Dominicci (1.9 miles)

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  • Average Low 2020–2025

    77.7 °F

  • Average 2020–2025

    82.4 °F

  • Average High 2020–2025

    85.1 °F
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