Tennant Weather Forecast

    • 34
    • 53

    Chance Rain/Snow

    • 39
    • 56

    Rain Showers

    • 42
    • 65

    Rain Showers

    • 38
    • 65

    Chance Rain

    • 38
    • 67

    Partly Sunny

    • 41
    • 71

    Mostly Sunny

Today 26 May North Central and Southeast Siskiyou County

Mostly cloudy. Chance of snow Showers and slight chance of Thunderstorms through the day. Chance of rain Showers this afternoon. Snow level 5500 feet this afternoon. Highs in the mid 40s to mid 50s. Northwest Winds 5 to 10 Mph. Chance of precipitation 40 percent.

Tonight 26 May North Central and Southeast Siskiyou County

Mostly cloudy. Chance of rain Showers, snow Showers and slight chance of Thunderstorms in the Evening, then chance of rain and snow Showers after midnight. Snow level 6000 feet lowering to 5500 feet after midnight. Lows in the lower 30s to lower 40s. Northwest Winds 10 to 15 Mph. Chance of precipitation 30 percent.

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Tennant Temperature Statistics

May Temperature

Mount Shasta (28 miles)

  • Lowest 17 May, 2026

    38.6 °F

  • Average May

    60.4 °F

  • Highest 11 May, 2026

    86.6 °F

Climate (2021–Present)

Mount Shasta (28 miles)

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  • Average Low 2021–2026

    39.7 °F

  • Average 2021–2026

    52.7 °F

  • Average High 2021–2026

    66 °F
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