Ireland Lake Weather Forecast

    • 34
    • 47

    Rain/Snow Likely

    • 36
    • 50

    Mostly Sunny

    • 39
    • 54

    Mostly Sunny

    • 37
    • 52

    Partly Sunny

    • 33
    • 49

    Mostly Sunny

    • 32
    • 49

    Mostly Sunny

Today 21 Sep Yosemite NP outside of the valley

Mostly cloudy. Chance of rain in the Morning, then chance of rain Showers in the afternoon. Highs 54 to 68. East Winds up to 10 Mph shifting to the southwest in the afternoon. Chance of precipitation 50 percent.

Tonight 21 Sep Yosemite NP outside of the valley

Colder. Partly cloudy. Lows 35 to 49. Northeast Winds up to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Ireland Lake Temperature Statistics

September Temperature

Mammoth Yosemite Airport (27.3 miles)

  • Lowest 18 September, 2026

    28.4 °F

  • Average September

    59.1 °F

  • Highest 9 September, 2026

    84.2 °F

Climate (2021–2026)

Mammoth Yosemite Airport (27.3 miles)

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  • Average Low 2021–2026

    29.4 °F

  • Average 2021–2026

    45.7 °F

  • Average High 2021–2026

    60.5 °F
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