Grasmere Airport Weather Forecast

    • 56
    • 81

    Increasing Clouds

    • 56
    • 80

    Mostly Cloudy

    • 54
    • 79

    Partly Sunny

    • 49
    • 78

    Mostly Sunny

    • 52
    • 79

    Mostly Sunny

    • 55
    • 84

    Partly Sunny

Today 18 Sep Southwest Highlands

Mostly sunny. Highs 81 to 86.

Tonight 18 Sep Southwest Highlands

Mostly cloudy. Lows 53 to 58.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grasmere Airport Temperature Statistics

September Temperature

Mountain Home Air Force Base (46.6 miles)

  • Lowest 12 September, 2025

    46.8 °F

  • Average September

    70 °F

  • Highest 3 September, 2025

    97.3 °F

Climate (2020–Present)

Mountain Home Air Force Base (46.6 miles)

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  • Average Low 2020–2025

    39.6 °F

  • Average 2020–2025

    52.2 °F

  • Average High 2020–2025

    65 °F
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