Newell Open Space Weather Forecast

    • 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 20 Jan North Bay Interior Valleys

Mostly cloudy. Patchy dense fog in the morning. Highs in the 50s to mid 60s. East Winds 5 to 10 Mph. Becoming southeast in the afternoon.

Tonight 20 Jan North Bay Interior Valleys

Mostly cloudy. Patchy fog. Lows in the 40s to lower 50s. North Winds up to 5 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

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)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    47.1 °F

  • Average 2021–2026

    58.1 °F

  • Average High 2021–2026

    70 °F
Get WillyWeather+ to remove ads