Three Forks Weather Forecast

    • 39
    • 68

    Becoming Sunny

    • 40
    • 74

    Mostly Sunny

    • 44
    • 78

    Partly Sunny

    • 43
    • 78

    Mostly Sunny

    • 44
    • 79

    Mostly Sunny

    • 45
    • 81

    Partly Sunny

Today 20 Sep Missouri Headwaters

Mostly sunny. Patchy fog early in the morning. Highs in the upper 60s. Southwest Winds up to 5 Mph shifting to the southeast in the afternoon.

Tonight 20 Sep Missouri Headwaters

Mostly clear. Lows in the lower 40s. East Winds up to 5 Mph shifting to the southwest after midnight.

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Three Forks Temperature Statistics

September Temperature

Bozeman, Gallatin Field (19.9 miles)

  • Lowest 15 September, 2026

    33.7 °F

  • Average September

    59.5 °F

  • Highest 10 September, 2026

    86.6 °F

Climate (2021–2026)

Bozeman, Gallatin Field (19.9 miles)

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  • Average Low 2021–2026

    31.3 °F

  • Average 2021–2026

    45 °F

  • Average High 2021–2026

    58.5 °F
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