Cohasset Weather Forecast

    • 63
    • 68

    Decreasing Clouds

    • 66
    • 75

    Mostly Sunny

    • 68
    • 79

    Mostly Sunny

    • 71
    • 85

    Mostly Sunny

    • 65
    • 80

    Partly Sunny

    • 64
    • 72

    Slight Chance Rain Showers

Today 19 Sep Northeast Foothills/Sacramento Valley

Cloudy. A slight chance of rain Showers in the Morning, then a slight chance of Showers and Thunderstorms in the afternoon. Highs 67 to 79. Prevailing south Winds up to 10 Mph.

Tonight 19 Sep Northeast Foothills/Sacramento Valley

Mostly cloudy. A slight chance of Showers and Thunderstorms in the evening. Lows 58 to 68. Light Winds.

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Cohasset Temperature Statistics

September Temperature

Nevada County Air Park (61.5 miles)

  • Lowest 10 September, 2025

    55.4 °F

  • Average September

    71.6 °F

  • Highest 2 September, 2025

    95 °F

Climate (2020–Present)

Nevada County Air Park (61.5 miles)

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  • Average Low 2020–2025

    52 °F

  • Average 2020–2025

    60.4 °F

  • Average High 2020–2025

    68.8 °F
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