Hamilton Weather Forecast

    • 56
    • 93

    Slight Chance Thunderstorms

    • 55
    • 91

    Areas Smoke

    • 59
    • 89

    Partly Sunny

    • 61
    • 92

    Partly Sunny

    • 60
    • 91

    Chance Rain

    • 60
    • 92

    Chance Rain

    • 59
    • 93

    Chance Thunderstorms

Today 18 Jul Missoula/Bitterroot Valleys

Mostly sunny. Patchy fog early in the morning. A 20 percent chance of Showers and Thunderstorms late in the afternoon. Highs in the lower to mid 90s.

Tonight 18 Jul Missoula/Bitterroot Valleys

Partly cloudy. Patchy smoke through the night. Lows in the mid to upper 50s. West Winds to 15 Mph in the evening.

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Hamilton Temperature Statistics

July Temperature

Missoula, Missoula International Airport (46.6 miles)

  • Lowest 2 July, 2026

    45.6 °F

  • Average July

    69.9 °F

  • Highest 11 July, 2026

    95.6 °F

Climate (2021–2026)

Missoula, Missoula International Airport (46.6 miles)

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  • Average Low 2021–2026

    36 °F

  • Average 2021–2026

    47.5 °F

  • Average High 2021–2026

    59.7 °F
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