McDonald Observatory Weather Forecast

    • 54
    • 84

    Mostly Sunny

    • 56
    • 85

    Sunny

    • 58
    • 86

    Mostly Sunny

    • 59
    • 87

    Slight Chance Thunderstorms

    • 59
    • 88

    Chance Thunderstorms

    • 57
    • 85

    Thunderstorms Likely

Today 8 Aug Davis Mountains

Sunny. Highs in the upper 80s. Southeast Winds 10 to 15 Mph.

Tonight 8 Aug Davis Mountains

Mostly clear. Lows in the lower 60s. Southeast Winds 10 to 15 Mph with Gusts up to 30 Mph.

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McDonald Observatory Temperature Statistics

August Temperature

Alpine, Alpine-Casparis Municipal Airport (28 miles)

  • Lowest 2 August, 2026

    61.7 °F

  • Average August

    80.7 °F

  • Highest 4 August, 2026

    97.2 °F

Climate (2021–2026)

Alpine, Alpine-Casparis Municipal Airport (28 miles)

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  • Average Low 2021–2026

    52.1 °F

  • Average 2021–2026

    65.2 °F

  • Average High 2021–2026

    78.3 °F
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