Hamilton weather live forecast

Today's maximum temperature in Hamilton is expected to be 4°C. Select a day from the live weather forecast for Hamilton, Montana, USA for more weather parameters.

  • Saturday
    6th Dec
    Cloudy with sleet or snow (10-20 mm of rainfall expected)
  • Sunday
    7th Dec
    Mostly cloudy with light rain (0-2 mm of rainfall expected)
  • Monday
    8th Dec
    Mostly cloudy with rain (10-20 mm of rainfall expected)
  • Tuesday
    9th Dec
    Sunshine and showers (10-20 mm of rainfall expected)
  • Wednesday
    10th Dec
    Cloudy with some rain (30-40 mm of rainfall expected)

5-day weather forecast updated at 04:04 on Saturday 6th 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 Saturday 6th December 2025

Expect cloudy with sleet or snow in Hamilton, Montana with a maximum temperature of 4°C, maximum UV of 1 (Low) and 2 hours of bright sunshine. There are 10-20 mm of sleet/snow expected with 86% chance of some sleet or snow and a gentle breeze of 18 kph from the south.

  • 4°C maximum temperature4
    °C maximum temperature
  • 1°C minimum temperature1
    °C minimum temperature
  • Cloudy with sleet or snow
    cloudy with sleet or snow
  • 2 hours of bright sunshine2
    hours of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 86% chance of some sleet or snow86
    % chance of some sleet or snow
  • 10-20 mm of sleet/snow expected<20
    mm of sleet/snow expected
  • 1°C wind chill1
    °C wind chill
  • Gentle breeze of 18 kph from the South18
    kph wind from S

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Hamilton weather for Sunday 7th December 2025

Expect mostly cloudy with light rain in Hamilton, Montana with a maximum temperature of 4°C, maximum UV of 1 (Low) and 2 hours of bright sunshine. There are 0-2 mm of rainfall expected with 68% chance of some rain and a gentle breeze of 16 kph from the south.

  • 4°C maximum temperature4
    °C maximum temperature
  • 1°C minimum temperature1
    °C minimum temperature
  • Mostly cloudy with light rain
    mostly cloudy with light rain
  • 2 hours of bright sunshine2
    hours of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 68% chance of some rain68
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • 1°C wind chill1
    °C wind chill
  • Gentle breeze of 16 kph from the South16
    kph wind from S

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Hamilton weather for Monday 8th December 2025

Expect mostly cloudy with rain in Hamilton, Montana with a maximum temperature of 7°C, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 10-20 mm of rainfall expected with 99% chance of some rain and a gentle breeze of 17 kph from the south.

  • 7°C maximum temperature7
    °C maximum temperature
  • 3°C minimum temperature3
    °C minimum temperature
  • Mostly cloudy with rain
    mostly cloudy with rain
  • 1 hour of bright sunshine1
    hour of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 99% chance of some rain99
    % chance of some rain
  • 10-20 mm of rainfall expected<20
    mm of rainfall expected
  • 4°C wind chill4
    °C wind chill
  • Gentle breeze of 17 kph from the South17
    kph wind from S

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Hamilton weather for Tuesday 9th December 2025

Expect sunshine and showers in Hamilton, Montana with a maximum temperature of 7°C, maximum UV of 1 (Low) and 4 hours of bright sunshine. There are 10-20 mm of rainfall expected with 83% chance of some rain and a gentle breeze of 17 kph from the south-west.

  • 7°C maximum temperature7
    °C maximum temperature
  • 3°C minimum temperature3
    °C minimum temperature
  • Sunshine and showers
    sunshine and showers
  • 4 hours of bright sunshine4
    hours of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 83% chance of some rain83
    % chance of some rain
  • 10-20 mm of rainfall expected<20
    mm of rainfall expected
  • 4°C wind chill4
    °C wind chill
  • Gentle breeze of 17 kph from the South-West17
    kph wind from SW

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Hamilton weather for Wednesday 10th December 2025

Expect cloudy with some rain in Hamilton, Montana with a maximum temperature of 9°C and 1 hour of bright sunshine. There are 30-40 mm of rainfall expected with 89% chance of some rain and a gentle breeze of 17 kph from the south.

  • 9°C maximum temperature9
    °C maximum temperature
  • 3°C minimum temperature3
    °C minimum temperature
  • Cloudy with some rain
    cloudy with some rain
  • 1 hour of bright sunshine1
    hour of sunshine
  • No UV (maximum) index0
    UV index (None)
  • 89% chance of some rain89
    % chance of some rain
  • 30-40 mm of rainfall expected<40
    mm of rainfall expected
  • 6°C wind chill6
    °C wind chill
  • Gentle breeze of 17 kph from the South17
    kph wind from S

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

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