Upper Glaston Lake Weather Forecast

    • 38
    • 62

    Breezy

    • 43
    • 65

    Partly Sunny

    • 41
    • 65

    Mostly Sunny

    • 48
    • 75

    Slight Chance Rain Showers

    • 46
    • 71

    Mostly Sunny

    • 44
    • 70

    Mostly Sunny

Today 14 Sep Northern Sweet Grass

Sunny, Windy, cooler. Highs in the mid 60s. West Winds 25 to 40 Mph with Gusts to around 55 Mph.

Tonight 14 Sep Northern Sweet Grass

Mostly clear. Lows in the upper 30s. West Winds 15 to 25 Mph with Gusts to around 45 Mph in the evening becoming southwest 5 to 10 Mph overnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Upper Glaston Lake Temperature Statistics

September Temperature

Livingston, Mission Field Airport (37.9 miles)

  • Lowest 9 September, 2026

    40.6 °F

  • Average September

    62 °F

  • Highest 10 September, 2026

    86.6 °F

Climate (2021–2026)

Livingston, Mission Field Airport (37.9 miles)

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  • Average Low 2021–2026

    34.7 °F

  • Average 2021–2026

    47.5 °F

  • Average High 2021–2026

    60.2 °F
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