Alkali Lake Weather Forecast

    • 51
    • 75

    Mostly Cloudy

    • 44
    • 75

    Partly Sunny

    • 45
    • 74

    Mostly Sunny

    • 46
    • 74

    Mostly Sunny

    • 45
    • 72

    Partly Sunny

    • 47
    • 73

    Partly Sunny

Today 15 Sep Northern Blaine County

Mostly cloudy. A 20 percent chance of rain Showers in the afternoon. Highs in the mid 70s. West Winds 5 to 15 Mph.

Tonight 15 Sep Northern Blaine County

Mostly cloudy with a 40 percent chance of rain Showers. Lows around 50. Northwest Winds 5 to 15 Mph.

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Alkali Lake Temperature Statistics

September Temperature

Havre, Havre City-County Airport (58.4 miles)

  • Lowest 5 September, 2025

    35.1 °F

  • Average September

    64.2 °F

  • Highest 9 September, 2025

    87.1 °F

Climate (2020–Present)

Havre, Havre City-County Airport (58.4 miles)

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  • Average Low 2020–2025

    32.2 °F

  • Average 2020–2025

    45.1 °F

  • Average High 2020–2025

    57.6 °F
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