Greybull Weather Forecast

    • 45
    • 78

    Increasing Clouds

    • 46
    • 87

    Decreasing Clouds

    • 47
    • 80

    Mostly Sunny

    • 54
    • 93

    Partly Sunny

    • 48
    • 85

    Partly Sunny

    • 45
    • 82

    Slight Chance Thunderstorms

    • 41
    • 77

    Partly Sunny

Today 10 May North Bighorn Basin

Mostly sunny. Highs in the mid 70s. Southeast Winds 10 to 15 Mph with Gusts up to 30 Mph.

Tonight 10 May North Bighorn Basin

Partly cloudy and breezy. Lows in the upper 40s. Southeast Winds 15 to 20 Mph with Gusts up to 30 Mph, Diminishing to around 10 Mph with Gusts up to 20 Mph after midnight.

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  • Temperature Real-Time

Greybull Temperature Statistics

May Temperature

South Big Horn County Airport (1.9 miles)

  • Lowest 6 May, 2026

    25.6 °F

  • Average May

    52.5 °F

  • Highest 2 May, 2026

    77.6 °F

Climate (2021–Present)

South Big Horn County Airport (1.9 miles)

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  • Average Low 2021–2026

    34.2 °F

  • Average 2021–2026

    48.1 °F

  • Average High 2021–2026

    62.2 °F
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