Boise weather live forecast

Today's maximum temperature in Boise is expected to be 24°C. Select a day from the live weather forecast for Boise, Idaho, USA for more weather parameters.

Thursday
21st May
24

9

14

UV8
Friday
22nd May
26

10

15

UV8
Saturday
23rd May
30

11

13

UV8
Sunday
24th May
31

15

13

UV7
Monday
25th May
32

14

6

UV6

5-day weather forecast updated at 04:00 on Thursday 21st May 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 Thursday 21st May 2026

Expect scattered clouds in Boise, Idaho with a maximum temperature of 24°C, maximum UV of 8 (Very High) and 14 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 22 kph from the north-west.

24
°C maximum temperature
9
°C minimum temperature
scattered clouds
14
hours of sunshine
UV8
UV index (Very High)
0
mm of rainfall expected
24
°C wind chill
22
kph wind from NW

Boise weather for Friday 22nd May 2026

Expect scattered clouds in Boise, Idaho with a maximum temperature of 26°C, maximum UV of 8 (Very High) and 15 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 13 kph from the south-east.

26
°C maximum temperature
10
°C minimum temperature
scattered clouds
15
hours of sunshine
UV8
UV index (Very High)
0
mm of rainfall expected
26
°C wind chill
13
kph wind from SE

Boise weather for Saturday 23rd May 2026

Expect scattered clouds in Boise, Idaho with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 8 (Very High) and 13 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 13 kph from the east.

30
°C maximum temperature
11
°C minimum temperature
scattered clouds
13
hours of sunshine
UV8
UV index (Very High)
0
mm of rainfall expected
L
low heat & humidity
13
kph wind from E

Boise weather for Sunday 24th May 2026

Expect scattered clouds in Boise, Idaho with a maximum temperature of 31°C, moderate levels of heat & humidity, maximum UV of 7 (High) and 13 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 14 kph from the north-west.

31
°C maximum temperature
15
°C minimum temperature
scattered clouds
13
hours of sunshine
UV7
UV index (High)
0
mm of rainfall expected
M
moderate heat & humidity
14
kph wind from NW

Boise weather for Monday 25th May 2026

Expect broken clouds in Boise, Idaho with a maximum temperature of 32°C, moderate levels of heat & humidity, maximum UV of 6 (High) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 21 kph from the south-west.