Hamilton weather live forecast

Today's maximum temperature in Hamilton is expected to be 15°C. Select a day from the live weather forecast for Hamilton, Montana, USA for more weather parameters.

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

5-day weather forecast updated at 04:03 on Saturday 25th October 2025 GMT

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

Hamilton weather forecast by day

Below are the detailed weather forecasts for Hamilton for the next 5 days.

Hamilton weather for Saturday 25th October 2025

Expect mostly cloudy with light rain in Hamilton, Montana with a maximum temperature of 15°C, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 0-2 mm of rainfall expected with 88% chance of some rain and a moderate breeze of 22 kph from the south.

  • 15°C maximum temperature15
    °C maximum temperature
  • 5°C minimum temperature5
    °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)
  • 88% chance of some rain88
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • 15°C wind chill15
    °C wind chill
  • Moderate breeze of 22 kph from the South22
    kph wind from S

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Hamilton weather for Sunday 26th October 2025

Expect cloudy with sleet or snow in Hamilton, Montana with a maximum temperature of 8°C, maximum UV of 2 (Low) and 4 hours of bright sunshine. There are 0-2 mm of sleet/snow expected with 45% chance of some sleet or snow and a moderate breeze of 22 kph from the south-west.

  • 8°C maximum temperature8
    °C maximum temperature
  • 0°C minimum temperature0
    °C minimum temperature
  • Cloudy with sleet or snow
    cloudy with sleet or snow
  • 4 hours of bright sunshine4
    hours of sunshine
  • UV (maximum) index 2 (Low)2
    UV index (Low)
  • 45% chance of some sleet or snow45
    % chance of some sleet or snow
  • 0-2 mm of sleet/snow expected<2
    mm of sleet/snow expected
  • 5°C wind chill5
    °C wind chill
  • Moderate breeze of 22 kph from the South-West22
    kph wind from SW

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Hamilton weather for Monday 27th October 2025

Expect sunshine and showers in Hamilton, Montana with a maximum temperature of 6°C, maximum UV of 2 (Low) and 5 hours of bright sunshine. There are 0-2 mm of rainfall expected with 23% chance of some rain and a moderate breeze of 20 kph from the south-west.

  • 6°C maximum temperature6
    °C maximum temperature
  • -2°C minimum temperature-2
    °C minimum temperature
  • Sunshine and showers
    sunshine and showers
  • 5 hours of bright sunshine5
    hours of sunshine
  • UV (maximum) index 2 (Low)2
    UV index (Low)
  • 23% chance of some rain23
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • 3°C wind chill3
    °C wind chill
  • Moderate breeze of 20 kph from the South-West20
    kph wind from SW

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Hamilton weather for Tuesday 28th October 2025

Expect broken clouds in Hamilton, Montana with a maximum temperature of 10°C, maximum UV of 3 (Moderate) and 1 hour of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 13 kph from the south.

  • 10°C maximum temperature10
    °C maximum temperature
  • -2°C minimum temperature-2
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 1 hour of bright sunshine1
    hour 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
  • Gentle breeze of 13 kph from the South13
    kph wind from S

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Hamilton weather for Wednesday 29th October 2025

Expect broken clouds in Hamilton, Montana with a maximum temperature of 13°C, maximum UV of 2 (Low) and 3 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 20 kph from the south.

  • 13°C maximum temperature13
    °C maximum temperature
  • 1°C minimum temperature1
    °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
  • 13°C wind chill13
    °C wind chill
  • Moderate breeze of 20 kph from the South20
    kph wind from S

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

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