Miles City weather in September 2025

Expect 23°C daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in Miles City in September. Check more long-term weather averages for Miles City in September before you book your next holiday to Montana in 2025/2026.

• 23
  23°C max day temperature
• 8
  8 hours of sunshine per day
• 7
  7 days with some rainfall
• 8
  8°C min night temperature
• 13
  13 hours of daylight per day
• 0
  No heat & humidity
• 29
  29 mm of monthly rainfall
• 5
  5 (Moderate) UV index

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Miles City by month

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The September weather guide for Montana (Miles City) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C / mm)  |  Imperial (°F / inches)

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Miles City September sunrise & sunset times

Browse the sunrise and sunset times for Miles City in September 2025. Select a month to view Miles City sunrise and sunset times for the next 12 months.

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