South Slough Weather Forecast

    • 57
    • 69

    Increasing Clouds

    • 57
    • 66

    Mostly Cloudy

    • 56
    • 66

    Mostly Cloudy

    • 55
    • 67

    Mostly Cloudy

    • 55
    • 66

    Mostly Cloudy

    • 57
    • 65

    Mostly Cloudy

Today 12 Aug Southwestern Solano County Including Vallejo

Mostly cloudy in the morning then becoming mostly sunny. Highs 72 to 82. West Winds 10 to 15 Mph with Gusts to around 25 Mph.

Tonight 12 Aug Southwestern Solano County Including Vallejo

Mostly clear in the evening then becoming mostly cloudy. Lows around 59. Southwest Winds 10 to 15 Mph with Gusts to around 30 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

South Slough Temperature Statistics

August Temperature

Napa, Napa County Airport (5 miles)

  • Lowest 6 August, 2026

    51.7 °F

  • Average August

    67.2 °F

  • Highest 2 August, 2026

    86.6 °F

Climate (2021–2026)

Napa, Napa County Airport (5 miles)

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  • Average Low 2021–2026

    47.3 °F

  • Average 2021–2026

    58.5 °F

  • Average High 2021–2026

    70.3 °F
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