Montana weather

Below are the temperatures expected today at popular destinations in Montana. Select a destination to compare today's forecast with average weather conditions.

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Recommended for Montana

The weather guide for Montana (Helena) shows long term weather averages processed from data supplied by CRU (University of East Anglia) & today's weather forecast provided by meteoblue. Find out more about our data sources.

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Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

When is the best time to go to Montana?

The best time to go to Montana (Helena) is June, July and August based on the following average weather conditions.

Maximum daytime temperature = 22 - 30°C [remove]
Daily hours of sunshine = 10 hours or more [remove]

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Max Day Temperature (°C)

  • -1°C maximum daytime temperature in January in Montana (Helena)-1
  • 3°C maximum daytime temperature in February in Montana (Helena)3
  • 6°C maximum daytime temperature in March in Montana (Helena)6
  • 12°C maximum daytime temperature in April in Montana (Helena)12
  • 18°C maximum daytime temperature in May in Montana (Helena)18
  • 23°C maximum daytime temperature in June in Montana (Helena)23
  • 28°C maximum daytime temperature in July in Montana (Helena)28
  • 28°C maximum daytime temperature in August in Montana (Helena)28
  • 20°C maximum daytime temperature in September in Montana (Helena)20
  • 14°C maximum daytime temperature in October in Montana (Helena)14
  • 5°C maximum daytime temperature in November in Montana (Helena)5
  • 0°C maximum daytime temperature in December in Montana (Helena)0

Hours of Sunshine (daily)

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

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More about the USA

Which is the hottest month in Montana?

The hottest time of year in Helena, Montana is normally July. Expect maximum daytime temperatures to reach 28°C with low heat and humidity.

Which month has the most rain in Montana?

In terms of rainfall, June is usually the wettest month in Helena, Montana with 55mm on average. There are normally 10 days in June with some rain.

When is it sunniest in Montana?

The sunniest time of year in Helena, Montana is normally July with bright sunshine on average for 77% of daylight hours; that's 12 hours of sunshine per day.

What is the flight time to Montana from the UK?

The flight time to Montana from the UK is typically 13 hours.

What is the time difference between Montana and the UK?

The time difference between Montana and the UK is GMT-7 hours.

What is the main language spoken in Montana?

The main language spoken in Montana is English.

Learn a language for Montana with Busuu*, Lingoda* and Rocket Languages*.

What is the currency in Montana?

The currency in Montana is the US Dollar (USD).

Send money to Montana with Monito*, Wise* and World Remit*.

Which plugs are used in Montana?

Montana uses electrical plug type A + B (120 Volts).

Which side of the road do they drive on in Montana?

They drive on the right side of the road in Montana.

Do you need a visa for Montana?

Yes, UK passport holders do need a visa to enter Montana.

Check USA visa requirements for all passport holders with VisaHQ* and*.

Compare Montana weather with the USA

Below the Montana weather chart shows average maximum daytime temperature for Montana, USA (Helena) and the USA (Washington).

Maximum daytime temperature (°C)

Montana, USA (Helena)
USA (Washington)

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

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