San Mateo Reservoir Weather Forecast

    • 48
    • 78

    Mostly Sunny

    • 49
    • 79

    Mostly Sunny

    • 49
    • 82

    Mostly Sunny

    • 41
    • 76

    Mostly Cloudy

    • 45
    • 72

    Mostly Sunny

    • 48
    • 78

    Mostly Sunny

Today 19 Mar West Central Mountains

Mostly sunny. Highs around 80. North Winds around 15 Mph.

Tonight 19 Mar West Central Mountains

Mostly clear. Lows in the lower 40s. Northwest Winds around 15 Mph.

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San Mateo Reservoir Temperature Statistics

March Temperature

Grants, Grants-Milan Municipal Airport (18.6 miles)

  • Lowest 7 March, 2026

    18.3 °F

  • Average March

    50.4 °F

  • Highest 2 March, 2026

    72.9 °F

Climate (2021–Present)

Grants, Grants-Milan Municipal Airport (18.6 miles)

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  • Average Low 2021–2026

    34.6 °F

  • Average 2021–2026

    52.7 °F

  • Average High 2021–2026

    67.8 °F
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