McArthur Weather Forecast

    • 34
    • 67

    Decreasing Clouds

    • 37
    • 70

    Mostly Sunny

    • 38
    • 68

    Mostly Sunny

    • 40
    • 68

    Mostly Cloudy

    • 41
    • 60

    Mostly Cloudy

    • 35
    • 58

    Chance Rain

Today 31 Oct Modoc County

Sunny then becoming partly cloudy in the late morning and early afternoon then becoming mostly cloudy. Highs in the lower to mid 60s. East Winds around 5 Mph shifting to the west this afternoon.

Tonight 31 Oct Modoc County

Mostly cloudy in the evening then clearing. Lows in the mid 30s to lower 40s. Light Winds becoming southeast around 5 Mph late in the evening and overnight.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

McArthur Temperature Statistics

October Temperature

Alturas (10.6 miles)

  • Lowest 20 October, 2025

    21.9 °F

  • Average October

    49.2 °F

  • Highest 7 October, 2025

    73 °F

Climate (2020–Present)

Alturas (10.6 miles)

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

  • Average Low 2020–2025

    33.1 °F

  • Average 2020–2025

    49.1 °F

  • Average High 2020–2025

    64.3 °F
Get WillyWeather+ to remove ads