Lewistown weather live forecast

Tomorrow's maximum temperature in Lewistown is expected to be 7°C.

  • Friday
    18th Apr
    Scattered clouds
  • Saturday
    19th Apr
    Scattered clouds
  • Sunday
    20th Apr
    Mostly cloudy with light rain (2-5 mm of rainfall expected)
  • Monday
    21st Apr
    Mostly cloudy with light rain (0-2 mm of rainfall expected)
  • Tuesday
    22nd Apr
    Mostly cloudy with light rain (0-2 mm of rainfall expected)

5-day weather forecast updated at 04:02 on Friday 18th April 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 Friday 18th April 2025

Expect scattered clouds in Lewistown, Montana with a maximum temperature of 7°C, maximum UV of 5 (Moderate) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 18 kph from the north-west.

  • 7°C maximum temperature7
    °C maximum temperature
  • -6°C minimum temperature-6
    °C minimum temperature
  • Scattered clouds
    scattered clouds
  • 8 hours of bright sunshine8
    hours of sunshine
  • UV (maximum) index 5 (Moderate)5
    UV index (Moderate)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • 4°C wind chill4
    °C wind chill
  • Gentle breeze of 18 kph from the North-West18
    kph wind from NW

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Lewistown weather for Saturday 19th April 2025

Expect scattered clouds in Lewistown, Montana with a maximum temperature of 15°C, maximum UV of 6 (High) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 16 kph from the south.

  • 15°C maximum temperature15
    °C maximum temperature
  • -3°C minimum temperature-3
    °C minimum temperature
  • Scattered clouds
    scattered clouds
  • 11 hours of bright sunshine11
    hours of sunshine
  • UV (maximum) index 6 (High)6
    UV index (High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • 15°C wind chill15
    °C wind chill
  • Gentle breeze of 16 kph from the South16
    kph wind from S

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Lewistown weather for Sunday 20th April 2025

Expect mostly cloudy with light rain in Lewistown, Montana with a maximum temperature of 11°C, maximum UV of 5 (Moderate) and 4 hours of bright sunshine. There are 2-5 mm of rainfall expected with 76% chance of some rain and a gentle breeze of 14 kph from the north-west.

  • 11°C maximum temperature11
    °C maximum temperature
  • 4°C minimum temperature4
    °C minimum temperature
  • Mostly cloudy with light rain
    mostly cloudy with light rain
  • 4 hours of bright sunshine4
    hours of sunshine
  • UV (maximum) index 5 (Moderate)5
    UV index (Moderate)
  • 76% chance of some rain76
    % chance of some rain
  • 2-5 mm of rainfall expected<5
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Gentle breeze of 14 kph from the North-West14
    kph wind from NW

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Lewistown weather for Monday 21st April 2025

Expect mostly cloudy with light rain in Lewistown, Montana with a maximum temperature of 9°C, maximum UV of 2 (Low) and 3 hours of bright sunshine. There are 0-2 mm of rainfall expected with 74% chance of some rain and a gentle breeze of 18 kph from the west.

  • 9°C maximum temperature9
    °C maximum temperature
  • 0°C minimum temperature0
    °C minimum temperature
  • Mostly cloudy with light rain
    mostly cloudy with light rain
  • 3 hours of bright sunshine3
    hours of sunshine
  • UV (maximum) index 2 (Low)2
    UV index (Low)
  • 74% chance of some rain74
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • 7°C wind chill7
    °C wind chill
  • Gentle breeze of 18 kph from the West18
    kph wind from W

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Lewistown weather for Tuesday 22nd April 2025

Expect mostly cloudy with light rain in Lewistown, Montana with a maximum temperature of 9°C, maximum UV of 5 (Moderate) and 5 hours of bright sunshine. There are 0-2 mm of rainfall expected with 53% chance of some rain and a moderate breeze of 26 kph from the north-west.

  • 9°C maximum temperature9
    °C maximum temperature
  • 0°C minimum temperature0
    °C minimum temperature
  • Mostly cloudy with light rain
    mostly cloudy with light rain
  • 5 hours of bright sunshine5
    hours of sunshine
  • UV (maximum) index 5 (Moderate)5
    UV index (Moderate)
  • 53% chance of some rain53
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • 5°C wind chill5
    °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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