Grasmere Reservoir Weather Forecast

    • 58
    • 84

    Increasing Clouds

    • 55
    • 83

    Mostly Cloudy

    • 52
    • 74

    Breezy

    • 47
    • 76

    Partly Sunny

    • 50
    • 78

    Mostly Sunny

    • 54
    • 79

    Partly Sunny

Today 31 Aug Southwest Highlands

Sunny. Highs 81 to 87.

Tonight 31 Aug Southwest Highlands

Increasing Clouds. Lows 53 to 58. Breezy.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grasmere Reservoir Temperature Statistics

August Temperature

Mountain Home Air Force Base (47.2 miles)

  • Lowest 4 August, 2026

    49.6 °F

  • Average August

    78.8 °F

  • Highest 1 August, 2026

    104.6 °F

Climate (2021–2026)

Mountain Home Air Force Base (47.2 miles)

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  • Average Low 2021–2026

    40 °F

  • Average 2021–2026

    52.6 °F

  • Average High 2021–2026

    65.6 °F
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