Sourdough Weather Forecast

    • 31
    • 47

    Decreasing Clouds

    • 33
    • 54

    Mostly Cloudy

    • 34
    • 48

    Mostly Cloudy

    • 28
    • 50

    Partly Sunny

    • 31
    • 56

    Partly Sunny

    • 27
    • 51

    Partly Sunny

Today 30 Oct Northern Sweet Grass

Decreasing Clouds. Patchy fog early in the morning. Highs around 50. East Winds 5 to 10 Mph.

Tonight 30 Oct Northern Sweet Grass

Mostly cloudy. Patchy fog overnight. A 20 percent chance of rain Showers after 3 am. Lows in the lower 30s. East Winds 5 to 10 Mph in the evening becoming light overnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sourdough Temperature Statistics

October Temperature

Livingston, Mission Field Airport (33.6 miles)

  • Lowest 25 October, 2026

    18.6 °F

  • Average October

    49.2 °F

  • Highest 5 October, 2026

    87.7 °F

Climate (2021–2026)

Livingston, Mission Field Airport (33.6 miles)

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  • Average Low 2021–2026

    34.6 °F

  • Average 2021–2026

    47.5 °F

  • Average High 2021–2026

    60.3 °F
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