Upper Seymour Lake Weather Forecast

    • 32
    • 50

    Mostly Sunny

    • 43
    • 58

    Mostly Sunny

    • 36
    • 58

    Rain/Snow Likely

    • 31
    • 44

    Chance Rain/Snow

    • 29
    • 45

    Slight Chance Thunderstorms

    • 24
    • 39

    Slight Chance Snow

Today 11 May Butte/Blackfoot Region

Mostly sunny. Highs in the mid 60s to lower 70s. Northwest Winds 15 to 20 Mph. Gusts up to 30 Mph in the afternoon.

Tonight 11 May Butte/Blackfoot Region

Mostly clear. Lows in the mid 30s to lower 40s. Northwest Winds 15 to 20 Mph with Gusts to around 30 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Upper Seymour Lake Temperature Statistics

May Temperature

Butte, Bert Mooney Airport (37.3 miles)

  • Lowest 6 May, 2026

    22.6 °F

  • Average May

    47.5 °F

  • Highest 3 May, 2026

    70.6 °F

Climate (2021–Present)

Butte, Bert Mooney Airport (37.3 miles)

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  • Average Low 2021–2026

    28.5 °F

  • Average 2021–2026

    42.4 °F

  • Average High 2021–2026

    55.8 °F
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