Lewistown weather live forecast

Today's maximum temperature in Lewistown is expected to be 1°C. Select a day from the live weather forecast for Lewistown, Montana, USA for more weather parameters.

5-day weather forecast updated at 04:03 on Thursday 4th 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 Thursday 4th December 2025

Expect mostly cloudy with snow in Lewistown, Montana with a maximum temperature of 1°C, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 5-10 cm of snow expected with 67% chance of some snow and a moderate breeze of 25 kph from the west.

  • 1°C maximum temperature1
    °C maximum temperature
  • -8°C minimum temperature-8
    °C minimum temperature
  • Mostly cloudy with snow
    mostly cloudy with snow
  • 1 hour of bright sunshine1
    hour of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 67% chance of some snow67
    % chance of some snow
  • 5-10 cm of snow expected<10
    cm of snow expected
  • -5°C wind chill-5
    °C wind chill
  • Moderate breeze of 25 kph from the West25
    kph wind from W

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Lewistown weather for Friday 5th December 2025

Expect mostly cloudy with light snow in Lewistown, Montana with a maximum temperature of 0°C, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 2-5 cm of snow expected with 90% chance of some snow and a gentle breeze of 18 kph from the west.

  • 0°C maximum temperature0
    °C maximum temperature
  • -3°C minimum temperature-3
    °C minimum temperature
  • Mostly cloudy with light snow
    mostly cloudy with light snow
  • 1 hour of bright sunshine1
    hour of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 90% chance of some snow90
    % chance of some snow
  • 2-5 cm of snow expected<5
    cm of snow expected
  • -6°C wind chill-6
    °C wind chill
  • Gentle breeze of 18 kph from the West18
    kph wind from W

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Lewistown weather for Saturday 6th December 2025

Expect mostly cloudy with light snow in Lewistown, Montana with a maximum temperature of -2°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 0-2 cm of snow expected with 97% chance of some snow and a gentle breeze of 18 kph from the north-west.

  • -2°C maximum temperature-2
    °C maximum temperature
  • -9°C minimum temperature-9
    °C minimum temperature
  • Mostly cloudy with light snow
    mostly cloudy with light snow
  • No hours of bright sunshine0
    hours of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 97% chance of some snow97
    % chance of some snow
  • 0-2 cm of snow expected<2
    cm of snow expected
  • -7°C wind chill-7
    °C wind chill
  • Gentle breeze of 18 kph from the North-West18
    kph wind from NW

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Lewistown weather for Sunday 7th December 2025

Expect cloudy with sleet or snow in Lewistown, Montana with a maximum temperature of 2°C, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 0-2 mm of sleet/snow expected with 42% chance of some sleet or snow and a moderate breeze of 25 kph from the south-west.

  • 2°C maximum temperature2
    °C maximum temperature
  • -2°C minimum temperature-2
    °C minimum temperature
  • Cloudy with sleet or snow
    cloudy with sleet or snow
  • 1 hour of bright sunshine1
    hour of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 42% chance of some sleet or snow42
    % chance of some sleet or snow
  • 0-2 mm of sleet/snow expected<2
    mm of sleet/snow expected
  • -3°C wind chill-3
    °C wind chill
  • Moderate breeze of 25 kph from the South-West25
    kph wind from SW

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Lewistown weather for Monday 8th December 2025

Expect clear skies with flurries of snow in Lewistown, Montana with a maximum temperature of 4°C, maximum UV of 1 (Low) and 4 hours of bright sunshine. There are 0-2 cm of snow expected with 25% chance of some snow and a fresh breeze of 31 kph from the west.

  • 4°C maximum temperature4
    °C maximum temperature
  • -2°C minimum temperature-2
    °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)
  • 25% chance of some snow25
    % chance of some snow
  • 0-2 cm of snow expected<2
    cm of snow expected
  • -2°C wind chill-2
    °C wind chill
  • Fresh breeze of 31 kph from the West31
    kph wind from W

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

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