Tennant Weather Forecast

    • 38
    • 57

    Slight Chance Rain

    • 35
    • 64

    Partly Sunny

    • 41
    • 70

    Sunny

    • 47
    • 78

    Mostly Sunny

    • 49
    • 80

    Partly Sunny

    • 45
    • 77

    Mostly Sunny

Today 29 May North Central and Southeast Siskiyou County

Mostly cloudy with a 30 percent chance of rain. Highs in the lower 50s to lower 60s. West Winds 5 to 10 Mph.

Tonight 29 May North Central and Southeast Siskiyou County

Partly cloudy. Slight chance of rain after midnight. Lows in the mid 30s to lower 40s. West Winds 5 to 10 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Tennant Temperature Statistics

May Temperature

Mount Shasta (28 miles)

  • Lowest 17 May, 2026

    38.6 °F

  • Average May

    59.6 °F

  • Highest 11 May, 2026

    86.6 °F

Climate (2021–Present)

Mount Shasta (28 miles)

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

  • Average Low 2021–2026

    39.8 °F

  • Average 2021–2026

    52.7 °F

  • Average High 2021–2026

    66 °F
Get WillyWeather+ to remove ads