Fallon Weather Forecast

    • 54
    • 65

    Increasing Clouds

    • 52
    • 69

    Mostly Cloudy

    • 53
    • 70

    Partly Sunny

    • 53
    • 71

    Mostly Cloudy

    • 52
    • 68

    Partly Sunny

    • 53
    • 71

    Partly Sunny

Today 16 Sep Coastal North Bay Including Point Reyes National Seashore

Partly cloudy. Highs in the lower to mid 60s. West Winds 5 to 15 Mph.

Tonight 16 Sep Coastal North Bay Including Point Reyes National Seashore

Mostly cloudy. Patchy fog after midnight. A slight chance of drizzle after midnight. Lows in the mid 50s. Southwest Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Fallon Temperature Statistics

September Temperature

Santa Rosa, Santa Rosa Sonoma County Airport (16.2 miles)

  • Lowest 5 September, 2026

    46.7 °F

  • Average September

    68 °F

  • Highest 10 September, 2026

    101.6 °F

Climate (2021–2026)

Santa Rosa, Santa Rosa Sonoma County Airport (16.2 miles)

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  • Average Low 2021–2026

    45.9 °F

  • Average 2021–2026

    58.7 °F

  • Average High 2021–2026

    72.9 °F
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