Pathfinder National Wildlife Refuge Weather Forecast

    • 23
    • 32

    Chance Snow Showers

    • 23
    • 39

    Decreasing Clouds

    • 31
    • 51

    Partly Sunny

    • 33
    • 55

    Chance Rain Showers

    • 35
    • 61

    Slight Chance Thunderstorms

    • 38
    • 69

    Partly Sunny

    • 40
    • 75

    Mostly Sunny

Today 18 May Green Mountains and Rattlesnake Range

Snow Showers with isolated Thunderstorms. Patchy blowing snow. Snow accumulation up to 2 Inches. Breezy with Highs in the lower 30s. North Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of snow 80 percent.

Tonight 18 May Green Mountains and Rattlesnake Range

Mostly cloudy. Scattered snow Showers this evening. Patchy fog after midnight. Cold with Lows 13 to 19. Northeast Winds 10 to 15 Mph with Gusts up to 25 Mph, becoming southwest after midnight. Chance of snow 30 percent.

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Pathfinder National Wildlife Refuge Temperature Statistics

May Temperature

Casper, Natrona County International Airport (36.7 miles)

  • Lowest 6 May, 2026

    18.6 °F

  • Average May

    53.2 °F

  • Highest 13 May, 2026

    92.6 °F

Climate (2021–Present)

Casper, Natrona County International Airport (36.7 miles)

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  • Average Low 2021–2026

    33.4 °F

  • Average 2021–2026

    47.7 °F

  • Average High 2021–2026

    61.5 °F
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