McDonald Observatory Weather Forecast

    • 49
    • 78

    Chance Thunderstorms

    • 42
    • 70

    Severe Tstms

    • 42
    • 65

    Mostly Sunny

    • 47
    • 70

    Breezy

    • 45
    • 71

    Sunny

    • 42
    • 71

    Mostly Sunny

Today 23 Oct Davis Mountains

Mostly sunny. Highs in the lower 80s. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 23 Oct Davis Mountains

Mostly cloudy with a chance of Showers. A slight chance of Thunderstorms. Some Thunderstorms may be severe in the evening. Lows in the mid 50s. Southwest Winds 5 to 10 Mph. Chance of rain 50 percent.

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McDonald Observatory Temperature Statistics

October Temperature

Alpine, Alpine-Casparis Municipal Airport (28 miles)

  • Lowest 19 October, 2025

    41.9 °F

  • Average October

    70.7 °F

  • Highest 20 October, 2025

    88.5 °F

Climate (2020–Present)

Alpine, Alpine-Casparis Municipal Airport (28 miles)

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  • Average Low 2020–2025

    51.4 °F

  • Average 2020–2025

    64.6 °F

  • Average High 2020–2025

    77.6 °F
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