San Mateo Weather Forecast

    • 64
    • 90

    Partly Sunny

    • 65
    • 91

    Partly Sunny

    • 62
    • 91

    Isolated Thunderstorms

    • 61
    • 89

    Slight Chance Thunderstorms

    • 61
    • 88

    Chance Thunderstorms

    • 61
    • 88

    Slight Chance Thunderstorms

Today 2 Aug West Central Mountains

Mostly sunny in the Morning, then partly cloudy with a slight chance of Showers and Thunderstorms in the afternoon. Highs in the lower 90s. South Winds 15 to 20 Mph in the morning. Chance of rain 20 percent.

Tonight 2 Aug West Central Mountains

Partly cloudy. Lows in the lower 60s.

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San Mateo Temperature Statistics

August Temperature

Grants, Grants-Milan Municipal Airport (18 miles)

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  • Average August

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Climate (2021–2026)

Grants, Grants-Milan Municipal Airport (18 miles)

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  • Average Low 2021–2026

    34.8 °F

  • Average 2021–2026

    53 °F

  • Average High 2021–2026

    68.1 °F
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