Big Timber Weather Forecast

    • 65
    • 82

    Rain Showers Likely

    • 66
    • 77

    Rain Showers Likely

    • 64
    • 82

    Chance Rain Showers

    • 65
    • 80

    Chance Rain Showers

    • 65
    • 84

    Rain Showers Likely

    • 57
    • 76

    Chance Rain Showers

Today 15 Sep Northern Will

Mostly cloudy. Isolated Thunderstorms in the late morning and early afternoon. Scattered Showers. Scattered Thunderstorms late. Highs in the lower 80s. Southwest Winds around 10 Mph, becoming west in the afternoon. Chance of precipitation 50 percent.

Tonight 15 Sep Northern Will

Mostly cloudy. A chance of Showers and Thunderstorms in the Evening, then Showers likely with a slight chance of Thunderstorms after midnight. Humid with Lows in the mid 60s. North Winds 5 to 10 Mph. Chance of precipitation 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Big Timber Temperature Statistics

September Temperature

Joliet Regional Airport (1.2 miles)

  • Lowest 13 September, 2026

    52.9 °F

  • Average September

    76.6 °F

  • Highest 2 September, 2026

    95.9 °F

Climate (2021–2026)

Joliet Regional Airport (1.2 miles)

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  • Average Low 2021–2026

    43.6 °F

  • Average 2021–2026

    53.8 °F

  • Average High 2021–2026

    63.4 °F
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