Threemile Reservoir Weather Forecast

    • 54
    • 85

    Decreasing Clouds

    • 51
    • 88

    Chance Rain Showers

    • 50
    • 84

    Mostly Sunny

    • 51
    • 84

    Partly Sunny

    • 50
    • 81

    Partly Sunny

    • 50
    • 78

    Chance Rain Showers

Today 1 Sep Northern Blaine County

Mostly sunny. Highs in the lower 80s. Southeast Winds 10 to 20 Mph.

Tonight 1 Sep Northern Blaine County

Partly cloudy. Lows in the mid 50s. Southeast Winds 10 to 20 Mph.

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Threemile Reservoir Temperature Statistics

September Temperature

Havre, Havre City-County Airport (51.6 miles)

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Climate (2021–2026)

Havre, Havre City-County Airport (51.6 miles)

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  • Average Low 2021–2026

    32.2 °F

  • Average 2021–2026

    45.3 °F

  • Average High 2021–2026

    58.2 °F
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