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Boise, USA Weather Averages

July is the hottest month in Boise with an average temperature of 24°C (75°F) and the coldest is January at -0°C (31°F). The wettest month is January with an average of 40mm of rain..

Average Temperature Boise

What is Average Temperature?
The average high temperature and the average low temperature for that month, on a daily basis, divided by 2 equals the average temperature for that month
What is Average Temperature?
The average high temperature and the average low temperature for that month, on a daily basis, divided by 2 equals the average temperature for that month

Average High Low Temperature Boise

What is Average High Low Temperature?
The sum of high temperatures/low temperatures divided by the number of days in that month, recorded daily
What is Average High Low Temperature?
The sum of high temperatures/low temperatures divided by the number of days in that month, recorded daily

Average Rainfall Boise

What is Average Rainfall?
The amount of mm in rain for that month divided by the number of days, and the number of days that it rains during that month on average, over a given period of years
What is Average Rainfall?
The amount of mm in rain for that month divided by the number of days, and the number of days that it rains during that month on average, over a given period of years

Boise : Next 24-Hour Weather

Tomorrow - 14th July 2026

Sunrise 06:16

Sunrise

Sunset 21:24

Sunset
18:00
Clear
33°C (90°F)
19:00
Clear
32°C (89°F)
20:00
Clear
31°C (88°F)
21:00
Clear
30°C (85°F)
22:00
Clear
28°C (82°F)
23:00
Clear
27°C (79°F)

Tomorrow - 15th July 2026

Sunrise 06:16

Sunrise

Sunset 21:24

Sunset
0:00
Clear
25°C (76°F)
1:00
Clear
23°C (73°F)
2:00
Clear
22°C (71°F)
3:00
Clear
22°C (70°F)
4:00
Clear
21°C (69°F)
5:00
Clear
20°C (67°F)
6:00
Clear
19°C (65°F)
7:00
Clear
20°C (67°F)
8:00
Clear
25°C (76°F)
9:00
Clear
27°C (80°F)
10:00
Clear
29°C (83°F)
11:00
Clear
31°C (87°F)
12:00
Clear
33°C (90°F)
13:00
Clear
34°C (92°F)
14:00
Clear
35°C (95°F)
15:00
Clear
36°C (96°F)
16:00
Clear
37°C (97°F)
17:00
Clear
37°C (98°F)