Great Falls weather live forecast

Today's maximum temperature in Great Falls is expected to be 18°C. Select a day from the live weather forecast for Great Falls, Montana, USA for more weather parameters.

  • Saturday
    25th Oct
    Mostly cloudy with light rain (0-2 mm of rainfall expected)
  • Sunday
    26th Oct
    Sunshine and showers (0-2 mm of rainfall expected)
  • Monday
    27th Oct
    Scattered clouds
  • Tuesday
    28th Oct
    Broken clouds
  • Wednesday
    29th Oct
    Scattered clouds

5-day weather forecast updated at 04:00 on Saturday 25th 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 25th October 2025

Expect mostly cloudy with light rain in Great Falls, Montana with a maximum temperature of 18°C, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 0-2 mm of rainfall expected with 25% chance of some rain and a moderate breeze of 26 kph from the south-west.

  • 18°C maximum temperature18
    °C maximum temperature
  • 9°C minimum temperature9
    °C minimum temperature
  • Mostly cloudy with light rain
    mostly cloudy with light rain
  • 1 hour of bright sunshine1
    hour of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 25% chance of some rain25
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • 18°C wind chill18
    °C wind chill
  • Moderate breeze of 26 kph from the South-West26
    kph wind from SW

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Great Falls weather for Sunday 26th October 2025

Expect sunshine and showers in Great Falls, Montana with a maximum temperature of 10°C, maximum UV of 2 (Low) and 9 hours of bright sunshine. There are 0-2 mm of rainfall expected with 6% chance of some rain and a strong breeze of 42 kph from the south-west.

  • 10°C maximum temperature10
    °C maximum temperature
  • 2°C minimum temperature2
    °C minimum temperature
  • Sunshine and showers
    sunshine and showers
  • 9 hours of bright sunshine9
    hours of sunshine
  • UV (maximum) index 2 (Low)2
    UV index (Low)
  • 6% chance of some rain6
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • 6°C wind chill6
    °C wind chill
  • Strong breeze of 42 kph from the South-West42
    kph wind from SW

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Great Falls weather for Monday 27th October 2025

Expect scattered clouds in Great Falls, Montana with a maximum temperature of 9°C, maximum UV of 2 (Low) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 34 kph from the west.

  • 9°C maximum temperature9
    °C maximum temperature
  • 0°C minimum temperature0
    °C minimum temperature
  • Scattered clouds
    scattered clouds
  • 5 hours of bright sunshine5
    hours of sunshine
  • UV (maximum) index 2 (Low)2
    UV index (Low)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • 5°C wind chill5
    °C wind chill
  • Fresh breeze of 34 kph from the West34
    kph wind from W

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Great Falls weather for Tuesday 28th October 2025

Expect broken clouds in Great Falls, Montana with a maximum temperature of 11°C, maximum UV of 2 (Low) and 3 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 22 kph from the south-west.

  • 11°C maximum temperature11
    °C maximum temperature
  • -2°C minimum temperature-2
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 3 hours of bright sunshine3
    hours of sunshine
  • UV (maximum) index 2 (Low)2
    UV index (Low)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • 11°C wind chill11
    °C wind chill
  • Moderate breeze of 22 kph from the South-West22
    kph wind from SW

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Great Falls weather for Wednesday 29th October 2025

Expect scattered clouds in Great Falls, Montana with a maximum temperature of 16°C, maximum UV of 2 (Low) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 37 kph from the west.

  • 16°C maximum temperature16
    °C maximum temperature
  • 3°C minimum temperature3
    °C minimum temperature
  • Scattered clouds
    scattered clouds
  • 6 hours of bright sunshine6
    hours of sunshine
  • UV (maximum) index 2 (Low)2
    UV index (Low)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • 16°C wind chill16
    °C wind chill
  • Fresh breeze of 37 kph from the West37
    kph wind from W

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

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