Custer Weather Forecast

    • 36
    • 49

    Slight Chance Rain Showers

    • 29
    • 57

    Increasing Clouds

    • 35
    • 56

    Mostly Cloudy

    • 31
    • 56

    Partly Sunny

    • 29
    • 54

    Partly Sunny

    • 36
    • 58

    Partly Sunny

    • 28
    • 62

    Mostly Sunny

Today 30 Jan Northeastern Yellowstone

Partly sunny. Highs in the lower 50s. Southwest Winds 5 to 15 Mph.

Tonight 30 Jan Northeastern Yellowstone

Mostly cloudy. A 20 percent chance of rain overnight. Lows in the upper 30s. Southwest Winds 5 to 15 Mph.

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  • Temperature Real-Time

Custer Temperature Statistics

January Temperature

Billings, Billings Logan International Airport (52.2 miles)

  • Lowest 23 January, 2026

    -5.4 °F

  • Average January

    34.9 °F

  • Highest 14 January, 2026

    66.7 °F

Climate (2021–Present)

Billings, Billings Logan International Airport (52.2 miles)

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  • Average Low 2021–2026

    38.8 °F

  • Average 2021–2026

    49.5 °F

  • Average High 2021–2026

    60.7 °F
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