Great Falls weather live forecast

Today's maximum temperature in Great Falls is expected to be 14°C. Select a day from the live weather forecast for Great Falls, Montana, USA for more weather parameters.

5-day weather forecast updated at 04:00 on Saturday 4th October 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 Saturday 4th October 2025

Expect mostly cloudy with light rain in Great Falls, Montana with a maximum temperature of 14°C, maximum UV of 4 (Moderate) and 3 hours of bright sunshine. There are 0-2 mm of rainfall expected with 52% chance of some rain and a moderate breeze of 24 kph from the north.

  • 14°C maximum temperature14
    °C maximum temperature
  • 6°C minimum temperature6
    °C minimum temperature
  • Mostly cloudy with light rain
    mostly cloudy with light rain
  • 3 hours of bright sunshine3
    hours of sunshine
  • UV (maximum) index 4 (Moderate)4
    UV index (Moderate)
  • 52% chance of some rain52
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • 14°C wind chill14
    °C wind chill
  • Moderate breeze of 24 kph from the North24
    kph wind from N

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Great Falls weather for Sunday 5th October 2025

Expect mostly cloudy with light rain in Great Falls, Montana with a maximum temperature of 6°C, maximum UV of 2 (Low) and 2 hours of bright sunshine. There are 2-5 mm of rainfall expected with 48% chance of some rain and a moderate breeze of 28 kph from the north.

  • 6°C maximum temperature6
    °C maximum temperature
  • -2°C minimum temperature-2
    °C minimum temperature
  • Mostly cloudy with light rain
    mostly cloudy with light rain
  • 2 hours of bright sunshine2
    hours of sunshine
  • UV (maximum) index 2 (Low)2
    UV index (Low)
  • 48% chance of some rain48
    % chance of some rain
  • 2-5 mm of rainfall expected<5
    mm of rainfall expected
  • 2°C wind chill2
    °C wind chill
  • Moderate breeze of 28 kph from the North28
    kph wind from N

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Great Falls weather for Monday 6th October 2025

Expect scattered clouds in Great Falls, Montana with a maximum temperature of 14°C, maximum UV of 4 (Moderate) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 21 kph from the south-west.

  • 14°C maximum temperature14
    °C maximum temperature
  • -3°C minimum temperature-3
    °C minimum temperature
  • Scattered clouds
    scattered clouds
  • 9 hours of bright sunshine9
    hours of sunshine
  • UV (maximum) index 4 (Moderate)4
    UV index (Moderate)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • 14°C wind chill14
    °C wind chill
  • Moderate breeze of 21 kph from the South-West21
    kph wind from SW

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Great Falls weather for Tuesday 7th October 2025

Expect clear skies in Great Falls, Montana with a maximum temperature of 19°C, maximum UV of 4 (Moderate) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 20 kph from the south-west.

  • 19°C maximum temperature19
    °C maximum temperature
  • 0°C minimum temperature0
    °C minimum temperature
  • Clear skies
    clear skies
  • 11 hours of bright sunshine11
    hours of sunshine
  • UV (maximum) index 4 (Moderate)4
    UV index (Moderate)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Moderate breeze of 20 kph from the South-West20
    kph wind from SW

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Great Falls weather for Wednesday 8th October 2025

Expect clear skies in Great Falls, Montana with a maximum temperature of 21°C, maximum UV of 4 (Moderate) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 26 kph from the south-west.

  • 21°C maximum temperature21
    °C maximum temperature
  • 3°C minimum temperature3
    °C minimum temperature
  • Clear skies
    clear skies
  • 11 hours of bright sunshine11
    hours of sunshine
  • UV (maximum) index 4 (Moderate)4
    UV index (Moderate)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Moderate breeze of 26 kph from the South-West26
    kph wind from SW

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

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