Tennant Weather Forecast

    • 43
    • 80

    Mostly Sunny

    • 42
    • 78

    Increasing Clouds

    • 42
    • 79

    Mostly Sunny

    • 45
    • 81

    Partly Sunny

    • 44
    • 81

    Partly Sunny

    • 44
    • 79

    Partly Sunny

    • 44
    • 79

    Partly Sunny

Today 13 Aug North Central and Southeast Siskiyou County

Sunny. Slight chance of Thunderstorms late this afternoon. Highs in the lower 70s to lower 80s. Southwest Winds 5 to 10 Mph.

Tonight 13 Aug North Central and Southeast Siskiyou County

Mostly clear. A 10 percent chance of Thunderstorms early this 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

Tennant Temperature Statistics

August Temperature

Mount Shasta (28 miles)

  • Lowest 4 August, 2026

    50.6 °F

  • Average August

    74.3 °F

  • Highest 7 August, 2026

    98.7 °F

Climate (2021–2026)

Mount Shasta (28 miles)

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

  • Average Low 2021–2026

    39.6 °F

  • Average 2021–2026

    52.5 °F

  • Average High 2021–2026

    65.8 °F
Get WillyWeather+ to remove ads