Idaho weather

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

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Recommended for Idaho

The weather guide for Idaho (Boise) 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 Idaho?

The best time to go to Idaho (Boise) is May, June and September 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)

  • 2°C maximum daytime temperature in January in Idaho (Boise)2
  • 7°C maximum daytime temperature in February in Idaho (Boise)7
  • 12°C maximum daytime temperature in March in Idaho (Boise)12
  • 16°C maximum daytime temperature in April in Idaho (Boise)16
  • 22°C maximum daytime temperature in May in Idaho (Boise)22
  • 27°C maximum daytime temperature in June in Idaho (Boise)27
  • 32°C maximum daytime temperature in July in Idaho (Boise)32
  • 31°C maximum daytime temperature in August in Idaho (Boise)31
  • 25°C maximum daytime temperature in September in Idaho (Boise)25
  • 18°C maximum daytime temperature in October in Idaho (Boise)18
  • 9°C maximum daytime temperature in November in Idaho (Boise)9
  • 3°C maximum daytime temperature in December in Idaho (Boise)3

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 Idaho?

The hottest time of year in Boise, Idaho is normally July. Expect maximum daytime temperatures to reach 32°C with moderate heat and humidity.

Which month has the most rain in Idaho?

In terms of rainfall, November is usually the wettest month in Boise, Idaho with 38mm on average. There are normally 10 days in November with some rain.

When is it sunniest in Idaho?

The sunniest time of year in Boise, Idaho is normally July with bright sunshine on average for 86% of daylight hours; that's 13 hours of sunshine per day.

What is the flight time to Idaho from the UK?

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

What is the time difference between Idaho and the UK?

The time difference between Idaho and the UK is GMT-7 to GMT-8 hours.

What is the main language spoken in Idaho?

The main language spoken in Idaho is English.

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

What is the currency in Idaho?

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

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

Which plugs are used in Idaho?

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

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

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

Do you need a visa for Idaho?

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

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

Compare Idaho weather with the USA

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

Maximum daytime temperature (°C)

Idaho, USA (Boise)
USA (Washington)

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

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