South Park Weather Forecast

    • 30
    • 55

    Increasing Clouds

    • 32
    • 49

    Mostly Cloudy

    • 36
    • 59

    Partly Sunny

    • 38
    • 55

    Rain Showers

    • 34
    • 54

    Slight Chance Rain Showers

    • 33
    • 59

    Partly Sunny

Today 29 Oct Southwestern Yellowstone

Sunny. Patchy fog early in the morning. Highs in the lower 50s. Northwest Winds 5 to 10 Mph in the morning shifting to the northeast in the afternoon.

Tonight 29 Oct Southwestern Yellowstone

Mostly cloudy. Patchy fog after 3 am. Lows in the lower 30s. North Winds 5 to 15 Mph.

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South Park Temperature Statistics

October Temperature

Billings, Billings Logan International Airport (3.1 miles)

  • Lowest 25 October, 2026

    29.6 °F

  • Average October

    53.2 °F

  • Highest 5 October, 2026

    88.6 °F

Climate (2021–2026)

Billings, Billings Logan International Airport (3.1 miles)

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  • Average Low 2021–2026

    39.1 °F

  • Average 2021–2026

    50 °F

  • Average High 2021–2026

    61.3 °F
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