Newell Open Space Weather Forecast

    • 47
    • 59

    Increasing Clouds

    • 46
    • 55

    Increasing Clouds

    • 47
    • 56

    Mostly Cloudy

    • 45
    • 58

    Partly Sunny

    • 42
    • 57

    Mostly Sunny

    • 42
    • 57

    Partly Sunny

    • 43
    • 55

    Mostly Cloudy

Today 19 Jan North Bay Interior Valleys

Sunny. Highs in the upper 50s to lower 70s. South Winds up to 5 Mph.

Tonight 19 Jan North Bay Interior Valleys

Partly cloudy in the evening then becoming mostly cloudy. Patchy dense fog. Lows in the mid 30s to lower 50s. North Winds up to 5 Mph. Becoming northeast after midnight.

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  • Temperature Forecast NOAA

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Newell Open Space Temperature Statistics

January Temperature

Napa, Napa County Airport (3.1 miles)

  • Lowest 9 January, 2026

    32 °F

  • Average January

    49.4 °F

  • Highest 15 January, 2026

    62.1 °F

Climate (2021–Present)

Napa, Napa County Airport (3.1 miles)

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  • Average Low 2021–2026

    47.1 °F

  • Average 2021–2026

    58.1 °F

  • Average High 2021–2026

    70 °F
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