Fallon Weather Forecast

    • 37
    • 54

    Areas Fog

    • 36
    • 54

    Mostly Sunny

    • 38
    • 55

    Mostly Sunny

    • 39
    • 56

    Mostly Sunny

    • 43
    • 56

    Chance Rain

    • 45
    • 54

    Rain Likely

    • 43
    • 54

    Chance Rain

Today 27 Dec Coastal North Bay Including Point Reyes National Seashore

Sunny. Highs in the mid 50s. North Winds 5 to 15 Mph.

Tonight 27 Dec Coastal North Bay Including Point Reyes National Seashore

Mostly clear in the evening then becoming partly cloudy. Lows in the lower 40s. North Winds around 5 Mph in the evening. Becoming light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Fallon Temperature Statistics

December Temperature

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

  • Lowest 4 December, 2025

    34 °F

  • Average December

    48.2 °F

  • Highest 3 December, 2025

    68 °F

Climate (2020–Present)

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

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  • Average Low 2020–2025

    45.6 °F

  • Average 2020–2025

    58 °F

  • Average High 2020–2025

    72.5 °F
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