Sun Valley, ID Weather


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The most pleasant months of the year for Sun Valley are August, July and June. In Sun Valley, there are 4 comfortable months with high temperatures in the range of 70-85°. July is the hottest month for Sun Valley with an average high temperature of 81.8°, which ranks it as cooler than most places in Idaho. December is the snowiest month in Sun Valley with 28.4 inches of snow, and 8 months of the year have significant snowfall. There are few days during the year when the humidity is even noticable.

Today's Weather - Sun Valley, ID

11 AM PST

Slight Chance Snow Showers

46°F

7 DAY FORECASTDESCRIPTIONHIGH/LOWWIND
This AfternoonSlight Chance Snow Showers49° / 17°WSW 17 to 22 mph
TuesdaySlight Chance Light Snow then Sunny43° / 18°WSW 6 to 18 mph
WednesdayMostly Sunny then Slight Chance Light Snow44° / 19°NW 7 to 13 mph
ThursdayMostly Sunny50° / 27°WNW 7 to 12 mph
FridaySlight Chance Light Snow then Slight Chance Light Rain54° / 28°W 7 to 13 mph
SaturdayMostly Sunny60° / 33°SE 6 to 13 mph
SundayChance Light Rain57° / 30°SW 9 to 14 mph

Weather Highlights

Summer High: the July high is around 82 degrees
Winter Low: the January low is 8
Rain: averages 14 inches of rain a year
Snow: averages 102 inches of snow a year


BESTPLACES COMFORT INDEX

The annual BestPlaces Comfort Index for the Sun Valley area is 8.8 (10=best), which means it is more comfortable than most places in Idaho.

8.8 / 10

A higher score indicates a more comfortable year-round climate. The US average for the comfort index is 7.8. Our index is based on the total number of days annually within the comfort range of 70-80 degrees, and we also applied a penalty for days of excessive humidity.


Average Monthly High and Low (°F)
HighLow
January31°
February35° 10°
March44° 20°
April54° 27°
May63° 35°
June71° 41°
July82° 47°
August81° 45°
September71° 37°
October58° 28°
November41° 18°
December30°
Hot, Freezing, Rainy, Snowy Days: Sun Valley
Hot
Days
Freezing
Days
Rainy
Days
Snowy
Days
January03188
February02877
March02975
April02372
May01080
June0380
July3050
August2150
September0750
October02251
November02975
December03189

YOU SHOULD KNOW

Many people confuse weather and climate but they are different. Weather is the conditions of the atmosphere over a short period of time, and climate is how the atmosphere is over long periods of time.

Weather is how the atmosphere is behaving and its effects upon life and human activities. Weather can change from minute-to-minute. Most people think of weather in terms of temperature, humidity, precipitation, cloudiness, brightness, visibility, wind, and atmospheric pressure.

Climate is the description of the long-term pattern of weather in a place. Climate can mean the average weather for a particular region and time period taken over 30 years. Climate is the average of weather over time.

Reviews for Sun Valley
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Young people living in Sun Valley, unless they have a trust fund can expect to have a difficult time here. The average age seems to be approx 78. Any business that is  More

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Absolutely beautiful. Nice people. Amazing skiing...all types of recreation for anyone and everyone. Summer temperatures are perfect. It's sunny more than 250 days  More

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Over 18 years ago

Winters are long, and summers can be short!!! The physcial beauty of the area is unbeatable,  More

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