Simerson Weather Forecast

    • 34
    • 68

    Increasing Clouds

    • 40
    • 67

    Mostly Sunny

    • 41
    • 68

    Mostly Sunny

    • 40
    • 65

    Partly Sunny

    • 39
    • 62

    Patchy Fog

    • 37
    • 58

    Partly Sunny

Today 17 Jan Northwestern Mendocino Interior

Sunny. Highs 61 to 73.

Tonight 17 Jan Northwestern Mendocino Interior

Mostly cloudy. Patchy valley fog. Lows 37 to 47.

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Simerson Temperature Statistics

January Temperature

Ukiah Municipal Airport (21.7 miles)

  • Lowest 9 January, 2026

    30 °F

  • Average January

    47.2 °F

  • Highest 14 January, 2026

    68 °F

Climate (2021–Present)

Ukiah Municipal Airport (21.7 miles)

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  • Average Low 2021–2026

    47 °F

  • Average 2021–2026

    60.8 °F

  • Average High 2021–2026

    76 °F
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