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Idaho United States of America
Temperatures in September
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Temperature in Idaho in September

Idaho is a region in the United States of America. September in has maximum daytime temperatures ranging from pleasant in Wallace with 20°C to high temperatures in Hagerman with 28°C. Nighttime temperatures generally drop to 8°C in Hagerman and 7°C in Wallace.

What is the temperature of the different cities in Idaho in September?

Explore the map below to discover average September temperatures at the top destinations in Idaho. For a deeper dive, simply click on any destination dot.

Weather conditions Weather
Temperatures
Precipitation
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Legend very warm warm pleasant moderate cold very cold
Very warm means maximum temperatures above 30°C. Warm: 22°C to 30°C. Pleasant: 18°C to 22°C Moderate: 12°C to 18°C. Cold: 2°C to 12°C. Very cold: lower than 2°C

  • What is the warmest city in September in Idaho?
    • According to our recent database analysis, Hagerman is the warmest city. It experiences an average maximum daytime temperature of approximately 28°C and rarely drops below 8°C during the night.

  • What is the coldest city in September in Idaho?
    • In our database, Wallace is the chilliest city in September in Idaho. Daytime temperatures typically peak at 20°C, while the nighttime lows hover around 7°C.

  • How much sun does Idaho get in September?
    • The weather is predominantly sunny, with an estimated total of around 303 hours of sunshine in Boise. This means many sunny days, which creates a cheerful atmosphere during this month.

    Interested in more climate information?

    We have much more information about the climate in Idaho. Interested in the weather conditions in a specific month? Select the month below.

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