Great Falls weather live forecast

Today's maximum temperature in Great Falls is expected to be 11°C. Select a day from the live weather forecast for Great Falls, Montana, USA for more weather parameters.

5-day weather forecast updated at 04:02 on Monday 20th 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 Monday 20th October 2025

Expect mostly cloudy with light rain in Great Falls, Montana with a maximum temperature of 11°C, maximum UV of 2 (Low) and 3 hours of bright sunshine. There are 0-2 mm of rainfall expected with 38% chance of some rain and a fresh breeze of 35 kph from the west.

  • 11°C maximum temperature11
    °C maximum temperature
  • 3°C minimum temperature3
    °C minimum temperature
  • Mostly cloudy with light rain
    mostly cloudy with light rain
  • 3 hours of bright sunshine3
    hours of sunshine
  • UV (maximum) index 2 (Low)2
    UV index (Low)
  • 38% chance of some rain38
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Fresh breeze of 35 kph from the West35
    kph wind from W

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Great Falls weather for Tuesday 21st October 2025

Expect scattered clouds in Great Falls, Montana with a maximum temperature of 14°C, maximum UV of 2 (Low) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 30 kph from the south-west.

  • 14°C maximum temperature14
    °C maximum temperature
  • 3°C minimum temperature3
    °C minimum temperature
  • Scattered clouds
    scattered clouds
  • 10 hours of bright sunshine10
    hours of sunshine
  • UV (maximum) index 2 (Low)2
    UV index (Low)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Fresh breeze of 30 kph from the South-West30
    kph wind from SW

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Great Falls weather for Wednesday 22nd October 2025

Expect scattered clouds in Great Falls, Montana with a maximum temperature of 19°C, maximum UV of 3 (Moderate) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 22 kph from the south-west.

  • 19°C maximum temperature19
    °C maximum temperature
  • -1°C minimum temperature-1
    °C minimum temperature
  • Scattered clouds
    scattered clouds
  • 10 hours of bright sunshine10
    hours of sunshine
  • UV (maximum) index 3 (Moderate)3
    UV index (Moderate)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • 19°C wind chill19
    °C wind chill
  • Moderate breeze of 22 kph from the South-West22
    kph wind from SW

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Great Falls weather for Thursday 23rd October 2025

Expect broken clouds in Great Falls, Montana with a maximum temperature of 17°C, maximum UV of 3 (Moderate) and 4 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 26 kph from the south-west.

  • 17°C maximum temperature17
    °C maximum temperature
  • 5°C minimum temperature5
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 4 hours of bright sunshine4
    hours of sunshine
  • UV (maximum) index 3 (Moderate)3
    UV index (Moderate)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • 17°C wind chill17
    °C wind chill
  • Moderate breeze of 26 kph from the South-West26
    kph wind from SW

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Great Falls weather for Friday 24th October 2025

Expect broken clouds in Great Falls, Montana with a maximum temperature of 19°C, maximum UV of 3 (Moderate) and 3 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 26 kph from the south.

  • 19°C maximum temperature19
    °C maximum temperature
  • 6°C minimum temperature6
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 3 hours of bright sunshine3
    hours of sunshine
  • UV (maximum) index 3 (Moderate)3
    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 South26
    kph wind from S

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

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