Fetters Hot Springs-Agua Caliente Weather Forecast

    • 44
    • 60

    Cloudy

    • 45
    • 58

    Mostly Cloudy

    • 44
    • 60

    Mostly Cloudy

    • 40
    • 59

    Partly Sunny

    • 38
    • 60

    Partly Sunny

    • 39
    • 57

    Mostly Cloudy

    • 39
    • 58

    Partly Sunny

Today 20 Jan North Bay Interior Valleys

Mostly cloudy. Patchy fog late in the morning. Highs in the lower 50s to mid 60s. Southeast Winds 5 to 10 Mph.

Tonight 20 Jan North Bay Interior Valleys

Cloudy. Patchy fog in the evening. Areas of fog after midnight. Lows in the 40s to lower 50s. East Winds up to 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Fetters Hot Springs-Agua Caliente Temperature Statistics

January Temperature

Petaluma Municipal Airport (7.5 miles)

  • Lowest 9 January, 2026

    30.2 °F

  • Average January

    51.2 °F

  • Highest 16 January, 2026

    64.4 °F

Climate (2021–Present)

Petaluma Municipal Airport (7.5 miles)

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  • Average Low 2021–2026

    44.6 °F

  • Average 2021–2026

    55.1 °F

  • Average High 2021–2026

    68.5 °F
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