Big Sage Reservoir Weather Forecast

    • 43
    • 56

    Rain Showers

    • 36
    • 53

    Rain Showers Likely

    • 30
    • 48

    Chance Rain Showers

    • 36
    • 56

    Mostly Cloudy

    • 27
    • 46

    Chance Rain/Snow

    • 25
    • 46

    Partly Sunny

Today 28 Feb Modoc County

Chance of Showers late this morning. Chance of Thunderstorms through the day. Showers likely late this afternoon. Highs in the mid 50s to lower 60s. East Winds around 5 Mph shifting to the southwest 10 to 15 Mph this afternoon. Chance of precipitation 60 percent.

Tonight 28 Feb Modoc County

Mostly cloudy. Rain Showers likely and slight chance of Thunderstorms in the Evening, then chance of rain Showers after midnight. Lows in the lower to mid 40s. West Winds 5 to 10 Mph shifting to the southeast late in the evening and overnight. Chance of precipitation 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Big Sage Reservoir Temperature Statistics

February Temperature

Alturas (9.3 miles)

  • Lowest 18 February, 2026

    6.7 °F

  • Average February

    37.8 °F

  • Highest 4 February, 2026

    67.6 °F

Climate (2021–Present)

Alturas (9.3 miles)

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  • Average Low 2021–2026

    33.5 °F

  • Average 2021–2026

    49.5 °F

  • Average High 2021–2026

    64.7 °F
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