Weather By Day

August Boise Weather 
August Boise Weather
Record High: 110°F
Normal High: 88°F
Normal Low: 60°F
Record Low: 34°F
Avg Monthly Rain: 0.3"
Rec 1 Day Rain: 1.61"

Boise Weather In August

In the last 71 years the highest measured temperature in Boise Idaho for August was 110 degrees Fahrenheit, most recently registered on August 4, 1961, while the standard high temperature is 88. The lowest documented temperature for Boise for the past 71 years in August was 34 most recently encountered on August 25, 1992, and the normal low daily temperature is 60.

According to National Weather Service historical Boise August Weather data, on August 31, 1964, the high temperature did not exceed 55 degrees Fahrenheit, the lowest high measured in Boise in the past 71 years. The Weather Service additionally shows that on August 5, 1971, the low for the day did not drop below 77 degrees, the highest low temperature in Boise in the last 71 years.

Weather Service historical data shows that the average daily high temperature in Boise on August First is 79 degrees Fahrenheit and the average high on the last day of August is 78 degrees. The low measured temperature in Boise on August First averages 69 degrees and the low on the last day of the month averages 66 degrees.

Boise typically receives an average of 0.3 inches of precipitation during the month. August Boise Weather records show that on August 13, 1979 Boise received 1.61 inches of rain, the most rain measured in a single day in August.