Fallon Weather Forecast

    • 46
    • 69

    Becoming Sunny

    • 45
    • 66

    Increasing Clouds

    • 47
    • 67

    Areas Fog

    • 47
    • 63

    Areas Fog

    • 46
    • 63

    Areas Fog

    • 47
    • 63

    Partly Sunny

    • 47
    • 65

    Mostly Sunny

Today 20 May Coastal North Bay Including Point Reyes National Seashore

Sunny. Highs in the lower 60s to mid 70s. West Winds 5 to 10 Mph.

Tonight 20 May Coastal North Bay Including Point Reyes National Seashore

Mostly clear. Lows in the mid 40s to lower 50s. West Winds around 5 Mph in the evening. Becoming light.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Fallon Temperature Statistics

May Temperature

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

  • Lowest 13 May, 2026

    44.7 °F

  • Average May

    63 °F

  • Highest 18 May, 2026

    84.9 °F

Climate (2021–Present)

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

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

  • Average Low 2021–2026

    45.9 °F

  • Average 2021–2026

    58.4 °F

  • Average High 2021–2026

    72.7 °F
Get WillyWeather+ to remove ads