Temperature in Idaho in May

Daytime highs, nighttime lows and the warmest cities in Idaho, the United States of America this May.

Idaho, the United States of America, a region in the United States of America, experiences maximum daytime temperatures in May ranging from 14°C (57°F) in Stanley to 23°C (73°F) in Hagerman. Nighttime temperatures generally drop to 6°C (43°F) in Hagerman and -2°C (28°F) in Stanley.

What is the temperature of the different cities in Idaho, the United States of America in May?

Curious about the May temperatures in the prime spots of Idaho? Navigate the map below and tap on a destination dot for more detailed stats.

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Check the conditions for any month of the year.

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For a detailed overview over the year and the best time to visit Idaho, check out our Idaho's climate page.

See also: Idaho weather by month.

Best Places to Visit in Idaho in May

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Idaho.

Conditions Temperatures Precipitation
Avg daytime high -5°C (23°F) cold → 32°C (90°F) hot

Marker color shows the average daytime high temperature in May: blue is cold, red is hot.

See all May weather averages, cities and regions in Idaho

Idaho temperatures in May: frequently asked questions

How hot does it get in Idaho, the United States of America in May?

Boise averages a daytime high of 22°C (72°F) in May, which is high for Idaho, the United States of America.

How cold does it get at night in Idaho, the United States of America in May?

Boise sees nighttime lows close to 7°C (45°F) in May.

What is the warmest city in May in Idaho, the United States of America?

From a thorough analysis of our records, Hagerman clearly dominates in terms of high temperatures. The city witnesses daytime temperatures hovering around 23°C (73°F), and evenings that remain near 6°C (43°F).

What is the coldest city in May in Idaho, the United States of America?

According to our data, Stanley holds the title for the coldest city in Idaho, the United States of America in May. It experiences maximum temperatures of approximately 14°C (57°F) and drops to lows of about -2°C (28°F) during the night.

How much sun does Idaho, the United States of America get in May?

The weather is predominantly sunny, with an estimated total of around 333 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.

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