Simpson Lake Weather Forecast

    • 50
    • 70

    Areas Smoke

    • 50
    • 69

    Areas Smoke

    • 49
    • 68

    Breezy

    • 48
    • 66

    Slight Chance Thunderstorms

    • 47
    • 66

    Breezy

    • 44
    • 63

    Partly Sunny

Today 7 Aug Wind River Mountains East

Sunny. Areas of smoke. Breezy with Highs in the mid 70s. West Winds 15 to 25 Mph with Gusts up to 45 Mph.

Tonight 7 Aug Wind River Mountains East

Clear. Areas of smoke. Breezy with Lows in the lower 50s. West Winds 15 to 20 Mph. Gusts up to 35 Mph in the evening.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Simpson Lake Temperature Statistics

August Temperature

Dubois Municipal Airport (8.7 miles)

  • Lowest 4 August, 2026

    39.2 °F

  • Average August

    64.3 °F

  • Highest 1 August, 2026

    87.8 °F

Climate (2021–2026)

Dubois Municipal Airport (8.7 miles)

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  • Average Low 2021–2026

    30.4 °F

  • Average 2021–2026

    41.3 °F

  • Average High 2021–2026

    53.1 °F
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