Lewistown weather live forecast

Today's maximum temperature in Lewistown is expected to be 0°C. Select a day from the live weather forecast for Lewistown, 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 (Lewistown) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Lewistown weather forecast by day

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

Lewistown weather for Saturday 6th December 2025

Expect clear skies with flurries of snow in Lewistown, Montana with a maximum temperature of 0°C, maximum UV of 1 (Low) and 4 hours of bright sunshine. There are 2-5 cm of snow expected with 82% chance of some snow and a moderate breeze of 24 kph from the west.

  • 0°C maximum temperature0
    °C maximum temperature
  • -11°C minimum temperature-11
    °C minimum temperature
  • Clear skies with flurries of snow
    clear skies with flurries of snow
  • 4 hours of bright sunshine4
    hours of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 82% chance of some snow82
    % chance of some snow
  • 2-5 cm of snow expected<5
    cm of snow expected
  • -6°C wind chill-6
    °C wind chill
  • Moderate breeze of 24 kph from the West24
    kph wind from W

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Lewistown weather for Sunday 7th December 2025

Expect sunshine and showers in Lewistown, Montana with a maximum temperature of 2°C, maximum UV of 1 (Low) and 5 hours of bright sunshine. There are 0-2 mm of rainfall expected with 25% chance of some rain and a moderate breeze of 27 kph from the west.

  • 2°C maximum temperature2
    °C maximum temperature
  • -3°C minimum temperature-3
    °C minimum temperature
  • Sunshine and showers
    sunshine and showers
  • 5 hours of bright sunshine5
    hours 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
  • -4°C wind chill-4
    °C wind chill
  • Moderate breeze of 27 kph from the West27
    kph wind from W

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Lewistown weather for Monday 8th December 2025

Expect mostly cloudy with light rain in Lewistown, Montana with a maximum temperature of 5°C, maximum UV of 1 (Low) and 3 hours of bright sunshine. There are 0-2 mm of rainfall expected with 33% chance of some rain and a moderate breeze of 28 kph from the west.

  • 5°C maximum temperature5
    °C maximum temperature
  • 1°C minimum temperature1
    °C minimum temperature
  • Mostly cloudy with light rain
    mostly cloudy with light rain
  • 3 hours of bright sunshine3
    hours of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 33% chance of some rain33
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • 0°C wind chill0
    °C wind chill
  • Moderate breeze of 28 kph from the West28
    kph wind from W

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Lewistown weather for Tuesday 9th December 2025

Expect cloudy with sleet or snow in Lewistown, Montana with a maximum temperature of 6°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 5-10 mm of sleet/snow expected with 60% chance of some sleet or snow and a strong breeze of 46 kph from the west.

  • 6°C maximum temperature6
    °C maximum temperature
  • -1°C minimum temperature-1
    °C 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)
  • 60% chance of some sleet or snow60
    % chance of some sleet or snow
  • 5-10 mm of sleet/snow expected<10
    mm of sleet/snow expected
  • 0°C wind chill0
    °C wind chill
  • Strong breeze of 46 kph from the West46
    kph wind from W

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Lewistown weather for Wednesday 10th December 2025

Expect cloudy with sleet or snow in Lewistown, Montana with a maximum temperature of 3°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 5-10 mm of sleet/snow expected with 87% chance of some sleet or snow and a moderate breeze of 26 kph from the north-west.

  • 3°C maximum temperature3
    °C maximum temperature
  • -3°C minimum temperature-3
    °C 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
  • 5-10 mm of sleet/snow expected<10
    mm of sleet/snow expected
  • -2°C wind chill-2
    °C wind chill
  • Moderate breeze of 26 kph from the North-West26
    kph wind from NW

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

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