Rock Springs Weather Forecast

    • 42
    • 65

    Chance Rain Showers

    • 41
    • 63

    Partly Sunny

    • 41
    • 67

    Mostly Sunny

    • 45
    • 73

    Partly Sunny

    • 44
    • 73

    Partly Sunny

    • 43
    • 70

    Mostly Sunny

Today 16 Sep Rock Springs and Green River

Partly cloudy this Morning, then clearing. Scattered Showers. Isolated Thunderstorms this Morning, then scattered Thunderstorms this afternoon. Some Thunderstorms may produce gusty Winds and small hail this morning. Some Thunderstorms may produce gusty Winds and small hail this afternoon. Highs in the mid 60s. North Winds around 10 Mph with Gusts up to 20 Mph, becoming northwest this afternoon. Chance of rain 30 percent.

Tonight 16 Sep Rock Springs and Green River

Partly cloudy in the Evening, then clearing. Lows in the lower 40s. North Winds around 10 Mph, becoming northeast after midnight.

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Rock Springs Temperature Statistics

September Temperature

Rock Springs, Rock Springs-Sweetwater County Airport (6.8 miles)

  • Lowest 13 September, 2025

    37.9 °F

  • Average September

    62.9 °F

  • Highest 2 September, 2025

    84 °F

Climate (2020–Present)

Rock Springs, Rock Springs-Sweetwater County Airport (6.8 miles)

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  • Average Low 2020–2025

    33.4 °F

  • Average 2020–2025

    45.1 °F

  • Average High 2020–2025

    57 °F
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