Heart Lake Weather Forecast

    • 36
    • 54

    Mostly Sunny

    • 42
    • 63

    Mostly Sunny

    • 41
    • 68

    Chance Rain Showers

    • 34
    • 58

    Rain Showers

    • 31
    • 44

    Chance Snow Showers

    • 36
    • 56

    Mostly Sunny

    • 43
    • 65

    Mostly Sunny

Today 1 May Southern Rocky Mountain Front

Not as cool. Sunny in the morning then becoming partly cloudy. Highs 50 to 60. North Winds up to 5 Mph shifting to the west in the afternoon.

Tonight 1 May Southern Rocky Mountain Front

Mostly clear. Lows 35 to 40. West Winds up to 10 Mph.

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Heart Lake Temperature Statistics

May Temperature

Helena Regional Airport (47.8 miles)

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  • Average May

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Climate (2020–Present)

Helena Regional Airport (47.8 miles)

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  • Average Low 2020–2025

    36.1 °F

  • Average 2020–2025

    47.4 °F

  • Average High 2020–2025

    59.2 °F
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