Big Timber Weather Forecast

    • 62
    • 87

    Mostly Sunny

    • 63
    • 87

    Chance Thunderstorms

    • 63
    • 82

    Chance Rain Showers

    • 63
    • 80

    Rain Showers Likely

    • 62
    • 79

    Chance Rain Showers

    • 59
    • 78

    Chance Rain Showers

Today 18 Sep Northern Will

Mostly sunny. Patchy fog through mid morning. Highs in the mid 80s. Southeast Winds 5 to 10 Mph.

Tonight 18 Sep Northern Will

Mostly clear. Lows in the lower 60s. East Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Big Timber Temperature Statistics

September Temperature

Joliet Regional Airport (1.2 miles)

  • Lowest 7 September, 2025

    40.1 °F

  • Average September

    65.9 °F

  • Highest 14 September, 2025

    88.5 °F

Climate (2020–Present)

Joliet Regional Airport (1.2 miles)

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  • Average Low 2020–2025

    43.4 °F

  • Average 2020–2025

    53.5 °F

  • Average High 2020–2025

    63 °F
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