Browns Lake Weather Forecast

    • 52
    • 86

    Slight Chance Thunderstorms

    • 51
    • 79

    Chance Thunderstorms

    • 49
    • 79

    Chance Thunderstorms

    • 49
    • 80

    Sunny

    • 52
    • 85

    Mostly Sunny

    • 49
    • 81

    Chance Rain Showers

Today 18 Sep South Central Siskiyou County

Partly cloudy early this morning then becoming mostly cloudy. Slight chance of Thunderstorms late this afternoon. Highs in the mid 70s to mid 80s. Northeast Winds around 5 Mph shifting to the south late this afternoon.

Tonight 18 Sep South Central Siskiyou County

Mostly cloudy. Slight chance of Thunderstorms in the evening. Lows in the mid 40s to mid 50s. Southwest Winds 5 to 10 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Browns Lake Temperature Statistics

September Temperature

Mount Shasta (0.6 miles)

  • Lowest 16 September, 2025

    43 °F

  • Average September

    63.1 °F

  • Highest 1 September, 2025

    90 °F

Climate (2020–Present)

Mount Shasta (0.6 miles)

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

  • Average Low 2020–2025

    39.5 °F

  • Average 2020–2025

    52.4 °F

  • Average High 2020–2025

    65.7 °F
Get WillyWeather+ to remove ads