Custer Weather Forecast

    • 58
    • 85

    Mostly Sunny

    • 63
    • 87

    Mostly Sunny

    • 62
    • 96

    Slight Chance Rain Showers

    • 62
    • 93

    Slight Chance Rain Showers

    • 61
    • 89

    Partly Sunny

    • 59
    • 86

    Chance Rain Showers

Today 17 Jul Northeastern Yellowstone

Sunny, warmer. Areas of fog early in the morning. Highs in the mid 80s. Southeast Winds 5 to 10 Mph.

Tonight 17 Jul Northeastern Yellowstone

Mostly clear. Lows in the upper 50s. Northeast Winds 5 to 15 Mph.

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Custer Temperature Statistics

July Temperature

Billings, Billings Logan International Airport (52.2 miles)

  • Lowest 6 July, 2025

    52.6 °F

  • Average July

    75.7 °F

  • Highest 9 July, 2025

    99.6 °F

Climate (2020–Present)

Billings, Billings Logan International Airport (52.2 miles)

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  • Average Low 2020–2025

    38.5 °F

  • Average 2020–2025

    49.3 °F

  • Average High 2020–2025

    60.5 °F
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