Big Lake Weather Forecast

    • 58
    • 87

    Increasing Clouds

    • 57
    • 84

    Chance Rain Showers

    • 54
    • 84

    Mostly Sunny

    • 54
    • 84

    Sunny

    • 56
    • 88

    Mostly Sunny

    • 55
    • 82

    Chance Rain Showers

Today 18 Sep Central Siskiyou County

Sunny in the Morning, then partly cloudy with a 10 percent chance of Thunderstorms in the afternoon. Highs in the lower 80s to lower 90s. North Winds around 5 Mph.

Tonight 18 Sep Central Siskiyou County

Mostly cloudy. Slight chance of Thunderstorms in the Evening, then slight chance of Showers after midnight. Lows in the mid 50s to lower 60s. North Winds 5 to 10 Mph shifting to the northeast well after midnight. Chance of precipitation 10 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Big Lake Temperature Statistics

September Temperature

Montague Siskiyou County Airport (16.8 miles)

  • Lowest 15 September, 2025

    44.1 °F

  • Average September

    68.2 °F

  • Highest 1 September, 2025

    95 °F

Climate (2020–Present)

Montague Siskiyou County Airport (16.8 miles)

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

  • Average Low 2020–2025

    39.6 °F

  • Average 2020–2025

    54.2 °F

  • Average High 2020–2025

    69 °F
Get WillyWeather+ to remove ads