Boise weather live forecast

Today's maximum temperature in Boise is expected to be 84°F. Select a day from the live weather forecast for Boise, Idaho, USA for more weather parameters.

Monday
21st Sep
84

55

10

6
Tuesday
22nd Sep
82

59

9

6
Wednesday
23rd Sep
84

55

11

6
Thursday
24th Sep
91

61

11

6
Friday
25th Sep
79

59

12

6

5-day weather forecast updated at 04:02 on Monday 21st September 2026 GMT

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The 5-day weather forecast for Idaho (Boise) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Boise weather forecast by day

Below are the detailed weather forecasts for Boise for the next 5 days.

Boise weather for Monday 21st September 2026

Expect scattered clouds in Boise, Idaho with a maximum temperature of 84°F, low levels of heat & humidity, maximum UV of 6 (High) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 7 mph from the east.

84
°F maximum temperature
55
°F minimum temperature
scattered clouds
10
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
L
low heat & humidity
7
mph wind from E

Boise weather for Tuesday 22nd September 2026

Expect scattered clouds in Boise, Idaho with a maximum temperature of 82°F, low levels of heat & humidity, maximum UV of 6 (High) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 6 mph from the east.

82
°F maximum temperature
59
°F minimum temperature
scattered clouds
9
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
L
low heat & humidity
6
mph wind from E

Boise weather for Wednesday 23rd September 2026

Expect scattered clouds in Boise, Idaho with a maximum temperature of 84°F, low levels of heat & humidity, maximum UV of 6 (High) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 7 mph from the east.

84
°F maximum temperature
55
°F minimum temperature
scattered clouds
11
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
L
low heat & humidity
7
mph wind from E

Boise weather for Thursday 24th September 2026

Expect scattered clouds in Boise, Idaho with a maximum temperature of 91°F, moderate levels of heat & humidity, maximum UV of 6 (High) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 14 mph from the south-east.

91
°F maximum temperature
61
°F minimum temperature
scattered clouds
11
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
M
moderate heat & humidity
14
mph wind from SE

Boise weather for Friday 25th September 2026

Expect scattered clouds in Boise, Idaho with a maximum temperature of 79°F, maximum UV of 6 (High) and 12 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 13 mph from the west.