Loch Lomond Marina Weather Forecast

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    Rain

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    Rain

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    Rain

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    Rain

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    Rain Likely

Today 21 Dec North Bay Interior Valleys

Breezy, rain. Highs in the mid 50s to lower 60s. South Winds 20 to 30 Mph.

Tonight 21 Dec North Bay Interior Valleys

Breezy. Rain in the Evening, then rain likely after midnight. Lows in the 40s to mid 50s. Southwest Winds 20 to 30 Mph decreasing to 10 to 20 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Loch Lomond Marina Temperature Statistics

December Temperature

Novato / Gnoss Field (12.4 miles)

  • Lowest 2 December, 2025

    37.4 °F

  • Average December

    46.6 °F

  • Highest 3 December, 2025

    71.6 °F

Climate (2020–Present)

Novato / Gnoss Field (12.4 miles)

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  • Average Low 2020–2025

    46.2 °F

  • Average 2020–2025

    57.4 °F

  • Average High 2020–2025

    72.3 °F
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