Hailstone Lake Weather Forecast

    • 56
    • 86

    Chance Thunderstorms

    • 58
    • 88

    Mostly Sunny

    • 61
    • 97

    Mostly Sunny

    • 60
    • 95

    Mostly Sunny

    • 56
    • 83

    Mostly Sunny

    • 52
    • 78

    Mostly Sunny

    • 52
    • 80

    Mostly Sunny

Today 17 Aug Northern Stillwater

Mostly sunny. A 50 percent chance of Showers and Thunderstorms late in the afternoon. Highs in the upper 80s. Southeast Winds 5 to 10 Mph.

Tonight 17 Aug Northern Stillwater

Decreasing Clouds. Chance of rain Showers and slight chance of Thunderstorms early in the Evening, then slight chance of rain Showers late in the evening. Lows in the mid 50s. West Winds 5 to 10 Mph. Chance of precipitation 40 percent.

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Hailstone Lake Temperature Statistics

August Temperature

Billings, Billings Logan International Airport (33.6 miles)

  • Lowest 10 August, 2025

    53.7 °F

  • Average August

    73.3 °F

  • Highest 13 August, 2025

    98.7 °F

Climate (2020–Present)

Billings, Billings Logan International Airport (33.6 miles)

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  • Average Low 2020–2025

    38.5 °F

  • Average 2020–2025

    49.3 °F

  • Average High 2020–2025

    60.5 °F
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