Lewistown weather live forecast

Today's maximum temperature in Lewistown is expected to be -9°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 22nd January 2026 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 22nd January 2026

Expect mostly cloudy with light snow in Lewistown, Montana with a maximum temperature of -9°C, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 0-2 cm of snow expected with 60% chance of some snow and a gentle breeze of 17 kph from the north-west.

  • -9°C maximum temperature-9
    °C maximum temperature
  • -17°C minimum temperature-17
    °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)
  • 60% chance of some snow60
    % chance of some snow
  • 0-2 cm of snow expected<2
    cm of snow expected
  • -16°C wind chill-16
    °C wind chill
  • Gentle breeze of 17 kph from the North-West17
    kph wind from NW

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Lewistown weather for Friday 23rd January 2026

Expect clear skies with flurries of snow in Lewistown, Montana with a maximum temperature of -14°C, maximum UV of 2 (Low) and 6 hours of bright sunshine. There are 0-2 cm of snow expected with 30% chance of some snow and a gentle breeze of 16 kph from the east.

  • -14°C maximum temperature-14
    °C maximum temperature
  • -20°C minimum temperature-20
    °C minimum temperature
  • Clear skies with flurries of snow
    clear skies with flurries of snow
  • 6 hours of bright sunshine6
    hours of sunshine
  • UV (maximum) index 2 (Low)2
    UV index (Low)
  • 30% chance of some snow30
    % chance of some snow
  • 0-2 cm of snow expected<2
    cm of snow expected
  • -22°C wind chill-22
    °C wind chill
  • Gentle breeze of 16 kph from the East16
    kph wind from E

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Lewistown weather for Saturday 24th January 2026

Expect mostly cloudy with light snow in Lewistown, Montana with a maximum temperature of -9°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 2-5 cm of snow expected with 92% chance of some snow and a moderate breeze of 23 kph from the north-west.

  • -9°C maximum temperature-9
    °C maximum temperature
  • -18°C minimum temperature-18
    °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)
  • 92% chance of some snow92
    % chance of some snow
  • 2-5 cm of snow expected<5
    cm of snow expected
  • -17°C wind chill-17
    °C wind chill
  • Moderate breeze of 23 kph from the North-West23
    kph wind from NW

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Lewistown weather for Sunday 25th January 2026

Expect clear skies with flurries of snow in Lewistown, Montana with a maximum temperature of -2°C, maximum UV of 2 (Low) and 8 hours of bright sunshine. There are 2-5 cm of snow expected with 17% chance of some snow and a gentle breeze of 19 kph from the south-west.

  • -2°C maximum temperature-2
    °C maximum temperature
  • -15°C minimum temperature-15
    °C minimum temperature
  • Clear skies with flurries of snow
    clear skies with flurries of snow
  • 8 hours of bright sunshine8
    hours of sunshine
  • UV (maximum) index 2 (Low)2
    UV index (Low)
  • 17% chance of some snow17
    % chance of some snow
  • 2-5 cm of snow expected<5
    cm of snow expected
  • -8°C wind chill-8
    °C wind chill
  • Gentle breeze of 19 kph from the South-West19
    kph wind from SW

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Lewistown weather for Monday 26th January 2026

Expect clear skies in Lewistown, Montana with a maximum temperature of 0°C, maximum UV of 1 (Low) and 9 hours of bright sunshine. There are 0 cm of snow expected and a moderate breeze of 21 kph from the west.

  • 0°C maximum temperature0
    °C maximum temperature
  • -11°C minimum temperature-11
    °C minimum temperature
  • Clear skies
    clear skies
  • 9 hours of bright sunshine9
    hours of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 0 cm of snow expected0
    cm of snow expected
  • -5°C wind chill-5
    °C wind chill
  • Moderate breeze of 21 kph from the West21
    kph wind from W

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

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