Great Falls weather live forecast

Today's maximum temperature in Great Falls is expected to be 32°C. Select a day from the live weather forecast for Great Falls, Montana, USA for more weather parameters.

5-day weather forecast updated at 04:01 on Wednesday 3rd September 2025 GMT

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The 5-day weather forecast for Montana (Great Falls) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Great Falls weather forecast by day

Below are the detailed weather forecasts for Great Falls for the next 5 days.

Great Falls weather for Tuesday 2nd September 2025

Expect scattered clouds in Great Falls, Montana with a maximum temperature of 32°C, moderate levels of heat & humidity, maximum UV of 6 (High) and 12 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 17 kph from the west.

  • 32°C maximum temperature32
    °C maximum temperature
  • 14°C minimum temperature14
    °C minimum temperature
  • Scattered clouds
    scattered clouds
  • 12 hours of bright sunshine12
    hours of sunshine
  • UV (maximum) index 6 (High)6
    UV index (High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • Moderate heat & humidityM
    moderate heat & humidity
  • Gentle breeze of 17 kph from the West17
    kph wind from W

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Great Falls weather for Wednesday 3rd September 2025

Expect clear skies in Great Falls, Montana with a maximum temperature of 32°C, moderate levels of heat & humidity, maximum UV of 6 (High) and 12 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 18 kph from the north.

  • 32°C maximum temperature32
    °C maximum temperature
  • 12°C minimum temperature12
    °C minimum temperature
  • Clear skies
    clear skies
  • 12 hours of bright sunshine12
    hours of sunshine
  • UV (maximum) index 6 (High)6
    UV index (High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • Moderate heat & humidityM
    moderate heat & humidity
  • Gentle breeze of 18 kph from the North18
    kph wind from N

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Great Falls weather for Thursday 4th September 2025

Expect broken clouds in Great Falls, Montana with a maximum temperature of 21°C, maximum UV of 6 (High) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 24 kph from the north.

  • 21°C maximum temperature21
    °C maximum temperature
  • 10°C minimum temperature10
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 5 hours of bright sunshine5
    hours of sunshine
  • UV (maximum) index 6 (High)6
    UV index (High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Moderate breeze of 24 kph from the North24
    kph wind from N

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Great Falls weather for Friday 5th September 2025

Expect clear skies in Great Falls, Montana with a maximum temperature of 23°C, maximum UV of 6 (High) and 13 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 20 kph from the north-east.

  • 23°C maximum temperature23
    °C maximum temperature
  • 6°C minimum temperature6
    °C minimum temperature
  • Clear skies
    clear skies
  • 13 hours of bright sunshine13
    hours of sunshine
  • UV (maximum) index 6 (High)6
    UV index (High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • 23°C wind chill23
    °C wind chill
  • Moderate breeze of 20 kph from the North-East20
    kph wind from NE

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Great Falls weather for Saturday 6th September 2025

Expect clear skies in Great Falls, Montana with a maximum temperature of 27°C, low levels of heat & humidity, maximum UV of 6 (High) and 12 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 21 kph from the north-east.

  • 27°C maximum temperature27
    °C maximum temperature
  • 6°C minimum temperature6
    °C minimum temperature
  • Clear skies
    clear skies
  • 12 hours of bright sunshine12
    hours of sunshine
  • UV (maximum) index 6 (High)6
    UV index (High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • Low heat & humidityL
    low heat & humidity
  • Moderate breeze of 21 kph from the North-East21
    kph wind from NE

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

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