Mapes Reservoir Weather Forecast

    • 42
    • 82

    Mostly Sunny

    • 34
    • 59

    Chance Rain/Snow

    • 34
    • 56

    Mostly Cloudy

    • 41
    • 66

    Mostly Sunny

    • 46
    • 76

    Mostly Sunny

    • 48
    • 80

    Mostly Sunny

Today 19 Jun Modoc County

Sunny. Highs in the lower to mid 80s. North Winds 5 to 10 Mph shifting to the southwest 10 to 20 Mph in the afternoon.

Tonight 19 Jun Modoc County

Mostly clear. Lows in the lower to mid 40s. West Winds 10 to 20 Mph with Gusts to around 35 Mph shifting to the northwest 5 to 10 Mph after midnight.

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  • Temperature Real-Time

Mapes Reservoir Temperature Statistics

June Temperature

Alturas (13 miles)

  • Lowest 2 June, 2025

    38.6 °F

  • Average June

    65.8 °F

  • Highest 8 June, 2025

    94.6 °F

Climate (2020–Present)

Alturas (13 miles)

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  • Average Low 2020–2025

    32.9 °F

  • Average 2020–2025

    49.3 °F

  • Average High 2020–2025

    64.4 °F
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