Hamilton weather live forecast

Today's maximum temperature in Hamilton is expected to be 39°F. Select a day from the live weather forecast for Hamilton, Montana, USA for more weather parameters.

5-day weather forecast updated at 04:04 on Sunday 7th December 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 Sunday 7th December 2025

Expect cloudy with sleet or snow in Hamilton, Montana with a maximum temperature of 39°F, maximum UV of 1 (Low) and no hours of bright sunshine. There are 2-5 mm of sleet/snow expected with 87% chance of some sleet or snow and a gentle breeze of 10 mph from the south.

  • 39°F maximum temperature39
    °F maximum temperature
  • 36°F minimum temperature36
    °F minimum temperature
  • Cloudy with sleet or snow
    cloudy with sleet or snow
  • No hours of bright sunshine0
    hours of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 87% chance of some sleet or snow87
    % chance of some sleet or snow
  • 2-5 mm of sleet/snow expected<5
    mm of sleet/snow expected
  • 34°F wind chill34
    °F wind chill
  • Gentle breeze of 10 mph from the South10
    mph wind from S

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Hamilton weather for Monday 8th December 2025

Expect mostly cloudy with light rain in Hamilton, Montana with a maximum temperature of 45°F, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 0-2 mm of rainfall expected with 91% chance of some rain and a gentle breeze of 11 mph from the south.

  • 45°F maximum temperature45
    °F maximum temperature
  • 39°F minimum temperature39
    °F 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)
  • 91% chance of some rain91
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • 37°F wind chill37
    °F wind chill
  • Gentle breeze of 11 mph from the South11
    mph wind from S

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Hamilton weather for Tuesday 9th December 2025

Expect mostly cloudy with rain in Hamilton, Montana with a maximum temperature of 45°F, maximum UV of 1 (Low) and no hours of bright sunshine. There are 10-20 mm of rainfall expected with 96% chance of some rain and a moderate breeze of 12 mph from the south-west.

  • 45°F maximum temperature45
    °F maximum temperature
  • 37°F minimum temperature37
    °F minimum temperature
  • Mostly cloudy with rain
    mostly cloudy with rain
  • No hours of bright sunshine0
    hours of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 96% chance of some rain96
    % chance of some rain
  • 10-20 mm of rainfall expected<20
    mm of rainfall expected
  • 39°F wind chill39
    °F wind chill
  • Moderate breeze of 12 mph from the South-West12
    mph wind from SW

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Hamilton weather for Wednesday 10th December 2025

Expect cloudy with sleet or snow in Hamilton, Montana with a maximum temperature of 43°F and no hours of bright sunshine. There are 30-40 mm of sleet/snow expected with 92% chance of some sleet or snow and a gentle breeze of 9 mph from the south-west.

  • 43°F maximum temperature43
    °F maximum temperature
  • 37°F minimum temperature37
    °F minimum temperature
  • Cloudy with sleet or snow
    cloudy with sleet or snow
  • No hours of bright sunshine0
    hours of sunshine
  • No UV (maximum) index0
    UV index (None)
  • 92% chance of some sleet or snow92
    % chance of some sleet or snow
  • 30-40 mm of sleet/snow expected<40
    mm of sleet/snow expected
  • 37°F wind chill37
    °F wind chill
  • Gentle breeze of 9 mph from the South-West9
    mph wind from SW

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Hamilton weather for Thursday 11th December 2025

Expect broken clouds in Hamilton, Montana with a maximum temperature of 41°F, maximum UV of 1 (Low) and 2 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 6 mph from the south-west.

  • 41°F maximum temperature41
    °F maximum temperature
  • 34°F minimum temperature34
    °F minimum temperature
  • Broken clouds
    broken clouds
  • 2 hours of bright sunshine2
    hours of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • 37°F wind chill37
    °F wind chill
  • Light breeze of 6 mph from the South-West6
    mph wind from SW

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