Hamilton Lakes Weather Forecast

    • 38
    • 45

    Slight Chance Thunderstorms

    • 44
    • 59

    Mostly Sunny

    • 46
    • 63

    Sunny

    • 47
    • 65

    Mostly Sunny

    • 48
    • 65

    Partly Sunny

    • 47
    • 64

    Chance Rain Showers

Today 15 Sep Southern Clearwater Mountains

Patchy fog in the morning. Patchy smoke late in the afternoon. Rain Showers likely early in the morning. Chance of rain Showers in the late morning and afternoon. Slight chance of Thunderstorms early in the afternoon. Chance of precipitation 70 percent. Highs 53 to 66.

Tonight 15 Sep Southern Clearwater Mountains

Mostly clear. Patchy fog through the night. Patchy frost after midnight. Lows 32 to 47.

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Hamilton Lakes Temperature Statistics

September Temperature

Salmon, Lemhi County Airport (54.1 miles)

  • Lowest 12 September, 2025

    39.9 °F
  • Average September

    61.2 °F
  • Highest 3 September, 2025

    90 °F

Climate (2020–Present)

Salmon, Lemhi County Airport (54.1 miles)

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  • Average Low 2020–2025

    32.3 °F
  • Average 2020–2025

    45.3 °F
  • Average High 2020–2025

    58.3 °F
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