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°C maximum daytime temperature in September in Miles City23
    23°C max day temperature
  • 8 hours of sunshine per day
  • 7 days with some rainfall in September in Miles City7
    7 days with some rainfall
  • 8°C minimum night-time temperature in September in Miles City8
    8°C min night temperature
  • 13 hours of daylight per day in September in Miles City13
    13 hours of daylight per day
  • No heat & humidity in September in Miles City0
    No heat & humidity
  • 29 mm monthly rainfall in September in Miles City29
    29 mm of monthly rainfall
  • UV (maximum) index 5 (Moderate) in September in Miles City5
    5 (Moderate) UV index

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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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How hot is it in Miles City in September?

Daytime temperatures usually reach 23°C in Miles City in September, falling to 8°C at night.

How sunny is it in Miles City in September?

There are normally 8 hours of bright sunshine each day in Miles City in September - that's 66% of daylight hours.

Does it rain in Miles City in September?

There are usually 7 days with some rain in Miles City in September and the average monthly rainfall is 29mm.

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.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:24 18:41
Monday, 15th September 2025 05:42 18:14
Tuesday, 30th September 2025 06:01 17:44

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