Montana Weather Forecast

    • 0
    • 16

    Morning frost. Sunny

    • 3
    • 19

    Possible late shower

    • 7
    • 21

    Shower or two

    • 5
    • 15

    Possible shower

    • -1
    • 15

    Morning frost. Cloudy

    • 1
    • 17

    Partly cloudy

    • 4
    • 19

    Shower or two

Today 23 Sep North West Coast

Mostly sunny. The chance of fog in the east in the early morning. Areas of morning frost. Light winds becoming north to northwesterly 15 to 20 km/h in the middle of the day then becoming light in the late afternoon. Overnight temperatures falling to between zero and 3 with daytime temperatures reaching between 14 and 17.

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Montana Temperature Statistics View More

September Temperature

Sheffield (32km)

  • Lowest 1 September, 2026

    0.2 °C

  • Average September

    9.5 °C

  • Highest 10 September, 2026

    19.4 °C

Climate (2021–2026)

Sheffield (32km)

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  • Average Low 2021–2026

    6.9 °C

  • Average 2021–2026

    11.3 °C

  • Average High 2021–2026

    16.6 °C
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