Boise weather live forecast

Today's maximum temperature in Boise is expected to be 27°C. Select a day from the live weather forecast for Boise, Idaho, USA for more weather parameters.

Monday
3rd Aug
27

13

14

9
Tuesday
4th Aug
30

12

14

8
Wednesday
5th Aug
34

13

14

8
Thursday
6th Aug
38

16

14

8
Friday
7th Aug
38

18

9

8

5-day weather forecast updated at 04:00 on Monday 3rd August 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 3rd August 2026

Expect clear skies in Boise, Idaho with a maximum temperature of 27°C, low levels of heat & humidity, maximum UV of 9 (Very High) and 14 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 20 kph from the north-west.

27
°C maximum temperature
13
°C minimum temperature
clear skies
14
hours of sunshine
9
UV index (Very High)
0
mm of rainfall expected
L
low heat & humidity
20
kph wind from NW

Boise weather for Tuesday 4th August 2026

Expect clear skies in Boise, Idaho with a maximum temperature of 30°C, low levels of heat & humidity, maximum UV of 8 (Very High) and 14 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 17 kph from the north-west.

30
°C maximum temperature
12
°C minimum temperature
clear skies
14
hours of sunshine
8
UV index (Very High)
0
mm of rainfall expected
L
low heat & humidity
17
kph wind from NW

Boise weather for Wednesday 5th August 2026

Expect clear skies in Boise, Idaho with a maximum temperature of 34°C, moderate levels of heat & humidity, maximum UV of 8 (Very High) and 14 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 13 kph from the east.

34
°C maximum temperature
13
°C minimum temperature
clear skies
14
hours of sunshine
8
UV index (Very High)
0
mm of rainfall expected
M
moderate heat & humidity
13
kph wind from E

Boise weather for Thursday 6th August 2026

Expect clear skies in Boise, Idaho with a maximum temperature of 38°C, high levels of heat & humidity, maximum UV of 8 (Very High) and 14 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 12 kph from the east.

38
°C maximum temperature
16
°C minimum temperature
clear skies
14
hours of sunshine
8
UV index (Very High)
0
mm of rainfall expected
H
high heat & humidity
12
kph wind from E

Boise weather for Friday 7th August 2026

Expect scattered clouds in Boise, Idaho with a maximum temperature of 38°C, high levels of heat & humidity, maximum UV of 8 (Very High) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 16 kph from the north-west.