Helena weather live forecast

Today's maximum temperature in Helena is expected to be 28°C. Select a day from the live weather forecast for Helena, Montana, USA for more weather parameters.

5-day weather forecast updated at 04:01 on Saturday 6th September 2025 GMT

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The 5-day weather forecast for Montana (Helena) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Helena weather forecast by day

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

Helena weather for Saturday 6th September 2025

Expect scattered clouds in Helena, Montana with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 6 (High) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 10 kph from the south-west.

  • 28°C maximum temperature28
    °C maximum temperature
  • 11°C minimum temperature11
    °C minimum temperature
  • Scattered clouds
    scattered clouds
  • 10 hours of bright sunshine10
    hours of sunshine
  • UV (maximum) index 6 (High)6
    UV index (High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • Low heat & humidityL
    low heat & humidity
  • Light breeze of 10 kph from the South-West10
    kph wind from SW

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Helena weather for Sunday 7th September 2025

Expect scattered clouds in Helena, Montana with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 4 (Moderate) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 18 kph from the south-west.

  • 28°C maximum temperature28
    °C maximum temperature
  • 13°C minimum temperature13
    °C minimum temperature
  • Scattered clouds
    scattered clouds
  • 9 hours of bright sunshine9
    hours of sunshine
  • UV (maximum) index 4 (Moderate)4
    UV index (Moderate)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • Low heat & humidityL
    low heat & humidity
  • Gentle breeze of 18 kph from the South-West18
    kph wind from SW

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Helena weather for Monday 8th September 2025

Expect scattered clouds in Helena, Montana with a maximum temperature of 27°C, low levels of heat & humidity, maximum UV of 6 (High) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 12 kph from the south-west.

  • 27°C maximum temperature27
    °C maximum temperature
  • 13°C minimum temperature13
    °C minimum temperature
  • Scattered clouds
    scattered clouds
  • 10 hours of bright sunshine10
    hours of sunshine
  • UV (maximum) index 6 (High)6
    UV index (High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • Low heat & humidityL
    low heat & humidity
  • Light breeze of 12 kph from the South-West12
    kph wind from SW

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Helena weather for Tuesday 9th September 2025

Expect isolated thunderstorms in Helena, Montana with a maximum temperature of 26°C, maximum UV of 5 (Moderate) and 4 hours of bright sunshine. There are 0-2 mm of rainfall expected with 36% chance of some rain and a gentle breeze of 13 kph from the south-west.

  • 26°C maximum temperature26
    °C maximum temperature
  • 13°C minimum temperature13
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 4 hours of bright sunshine4
    hours of sunshine
  • UV (maximum) index 5 (Moderate)5
    UV index (Moderate)
  • 36% chance of some rain36
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • 26°C wind chill26
    °C wind chill
  • Gentle breeze of 13 kph from the South-West13
    kph wind from SW

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Helena weather for Wednesday 10th September 2025

Expect isolated thunderstorms in Helena, Montana with a maximum temperature of 24°C, maximum UV of 5 (Moderate) and 6 hours of bright sunshine. There are 0-2 mm of rainfall expected with 48% chance of some rain and a light breeze of 11 kph from the north.

  • 24°C maximum temperature24
    °C maximum temperature
  • 12°C minimum temperature12
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 6 hours of bright sunshine6
    hours of sunshine
  • UV (maximum) index 5 (Moderate)5
    UV index (Moderate)
  • 48% chance of some rain48
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • 24°C wind chill24
    °C wind chill
  • Light breeze of 11 kph from the North11
    kph wind from N

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

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