Newell Open Space Weather Forecast

    • 47
    • 57

    Rain Showers

    • 44
    • 61

    Chance Rain

    • 47
    • 67

    Mostly Sunny

    • 49
    • 67

    Partly Sunny

    • 50
    • 64

    Partly Sunny

    • 48
    • 64

    Partly Sunny

Today 21 Apr North Bay Interior Valleys

Patchy fog in the morning. Showers likely in the morning. A chance of Thunderstorms. Showers in the afternoon. Some Thunderstorms may produce small hail. Highs in the 50s to mid 60s. Southeast Winds 5 to 10 Mph. Becoming southwest 5 to 15 Mph in the afternoon.

Tonight 21 Apr North Bay Interior Valleys

Rain likely in the Evening, then a chance of rain after midnight. Patchy fog after midnight. Lows in the 40s to lower 50s. Southwest Winds 5 to 15 Mph.

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Newell Open Space Temperature Statistics

April Temperature

Napa, Napa County Airport (3.1 miles)

  • Lowest 3 April, 2026

    38.6 °F

  • Average April

    57.7 °F

  • Highest 5 April, 2026

    83.6 °F

Climate (2021–Present)

Napa, Napa County Airport (3.1 miles)

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  • Average Low 2021–2026

    47.3 °F

  • Average 2021–2026

    58.3 °F

  • Average High 2021–2026

    70.2 °F
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