Ireland Lake Weather Forecast

    • 29
    • 44

    Increasing Clouds

    • 31
    • 40

    Chance Snow Showers

    • 35
    • 51

    Breezy

    • 38
    • 56

    Mostly Sunny

    • 38
    • 55

    Mostly Sunny

    • 36
    • 53

    Partly Sunny

Today 27 Sep Yosemite NP outside of the valley

Mostly sunny. Patchy smoke until late afternoon. Areas of smoke late in the afternoon. Highs 50 to 64. South Winds 5 to 15 Mph with Gusts to around 35 Mph.

Tonight 27 Sep Yosemite NP outside of the valley

Colder. Mostly clear. Patchy smoke through the night. Widespread frost after midnight. Lows 29 to 43. Southeast Winds up to 10 Mph. Gusts up to 35 Mph decreasing to 20 Mph after midnight.

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Ireland Lake Temperature Statistics

September Temperature

Mammoth Yosemite Airport (27.3 miles)

  • Lowest 18 September, 2026

    28.4 °F

  • Average September

    58.2 °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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