Herrin Lakes Weather Forecast

    • 15
    • 38

    Mostly Sunny

    • 19
    • 40

    Partly Sunny

    • 24
    • 41

    Snow

    • 12
    • 37

    Snow

    • -5
    • 25

    Snow Likely

    • -7
    • 8

    Snow Likely

    • -5
    • 10

    Chance Snow

Today 29 Jan Upper Blackfoot and MacDonald Pass

Sunny. Highs 30 to 35. West Winds 5 to 15 Mph. Gusts up to 30 Mph in the afternoon.

Tonight 29 Jan Upper Blackfoot and MacDonald Pass

Mostly clear. Lows 15 to 20. West Winds 5 to 15 Mph with Gusts to around 30 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Herrin Lakes Temperature Statistics

January Temperature

Helena Regional Airport (39.8 miles)

  • Lowest 20 January, 2025

    -10.2 °F

  • Average January

    21.6 °F

  • Highest 16 January, 2025

    52.6 °F

Climate (2020–Present)

Helena Regional Airport (39.8 miles)

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  • Average Low 2020–2025

    36.2 °F

  • Average 2020–2025

    47.5 °F

  • Average High 2020–2025

    59.3 °F
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