Helena weather live forecast

Today's maximum temperature in Helena is expected to be 21°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 Wednesday 1st October 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 Wednesday 1st October 2025

Expect broken clouds in Helena, Montana with a maximum temperature of 21°C, maximum UV of 3 (Moderate) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 15 kph from the west.

  • 21°C maximum temperature21
    °C maximum temperature
  • 10°C minimum temperature10
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 5 hours of bright sunshine5
    hours of sunshine
  • UV (maximum) index 3 (Moderate)3
    UV index (Moderate)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Gentle breeze of 15 kph from the West15
    kph wind from W

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Helena weather for Thursday 2nd October 2025

Expect broken clouds in Helena, Montana with a maximum temperature of 20°C, maximum UV of 4 (Moderate) and 4 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 12 kph from the south.

  • 20°C maximum temperature20
    °C maximum temperature
  • 8°C minimum temperature8
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 4 hours of bright sunshine4
    hours of sunshine
  • UV (maximum) index 4 (Moderate)4
    UV index (Moderate)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Light breeze of 12 kph from the South12
    kph wind from S

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Helena weather for Friday 3rd October 2025

Expect mostly cloudy with rain in Helena, Montana with a maximum temperature of 16°C, maximum UV of 3 (Moderate) and 4 hours of bright sunshine. There are 5-10 mm of rainfall expected with 42% chance of some rain and a light breeze of 10 kph from the north-west.

  • 16°C maximum temperature16
    °C maximum temperature
  • 10°C minimum temperature10
    °C minimum temperature
  • Mostly cloudy with rain
    mostly cloudy with rain
  • 4 hours of bright sunshine4
    hours of sunshine
  • UV (maximum) index 3 (Moderate)3
    UV index (Moderate)
  • 42% chance of some rain42
    % chance of some rain
  • 5-10 mm of rainfall expected<10
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Light breeze of 10 kph from the North-West10
    kph wind from NW

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Helena weather for Saturday 4th October 2025

Expect broken clouds in Helena, Montana with a maximum temperature of 15°C, maximum UV of 1 (Low) and 2 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 14 kph from the north-west.

  • 15°C maximum temperature15
    °C maximum temperature
  • 6°C minimum temperature6
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 2 hours of bright sunshine2
    hours of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • 15°C wind chill15
    °C wind chill
  • Gentle breeze of 14 kph from the North-West14
    kph wind from NW

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Helena weather for Sunday 5th October 2025

Expect broken clouds in Helena, Montana with a maximum temperature of 10°C, maximum UV of 1 (Low) and 4 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 13 kph from the north.

  • 10°C maximum temperature10
    °C maximum temperature
  • 2°C minimum temperature2
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 4 hours of bright sunshine4
    hours of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • 8°C wind chill8
    °C wind chill
  • Gentle breeze of 13 kph from the North13
    kph wind from N

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

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