Idaho weather live forecast

Today's maximum temperature in Idaho is expected to be 37°C. Select a day from the live weather forecast for Idaho (Boise), USA for more weather parameters.

Friday
17th Jul
37

21

14

9
Saturday
18th Jul
37

22

15

10
Sunday
19th Jul
37

20

6

10
Monday
20th Jul
39

21

7

11
Tuesday
21st Jul
35

24

1

8

5-day weather forecast updated at 04:00 on Saturday 18th July 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.

Top Idaho destinations

Below are temperatures expected today at popular countries, regions and places in Idaho. Select a destination to see the detailed weather forecast for today, tomorrow and the outlook for the next five days.

All Idaho destinations

Idaho weather forecast by day

Below are the detailed weather forecasts for Idaho for the next 5 days. The forecasts shown are for Boise and may not represent the whole of Idaho. Browse more destinations in Idaho to view more weather forecasts.

Idaho weather for Friday 17th July 2026

Expect isolated thunderstorms in Idaho with a maximum temperature of 37°C, high levels of heat & humidity, maximum UV of 9 (Very High) and 14 hours of bright sunshine. There are 5-10 mm of rainfall expected with 4% chance of some rain and a light breeze of 12 kph from the east.

37
°C maximum temperature
21
°C minimum temperature
isolated thunderstorms
14
hours of sunshine
9
UV index (Very High)
4
% chance of some rain
<10
mm of rainfall expected
H
high heat & humidity
12
kph wind from E

Idaho weather for Saturday 18th July 2026

Expect clear skies in Idaho with a maximum temperature of 37°C, high levels of heat & humidity, maximum UV of 10 (Very High) and 15 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 15 kph from the north-west.

37
°C maximum temperature
22
°C minimum temperature
clear skies
15
hours of sunshine
10
UV index (Very High)
0
mm of rainfall expected
H
high heat & humidity
15
kph wind from NW

Idaho weather for Sunday 19th July 2026

Expect broken clouds in Idaho with a maximum temperature of 37°C, high levels of heat & humidity, maximum UV of 10 (Very High) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 16 kph from the north-west.

37
°C maximum temperature
20
°C minimum temperature
broken clouds
6
hours of sunshine
10
UV index (Very High)
0
mm of rainfall expected
H
high heat & humidity
16
kph wind from NW

Idaho weather for Monday 20th July 2026

Expect broken clouds in Idaho with a maximum temperature of 39°C, very high levels of heat & humidity, maximum UV of 11 (Extreme) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 19 kph from the north-west.

39
°C maximum temperature
21
°C minimum temperature
broken clouds
7
hours of sunshine
11
UV index (Extreme)
0
mm of rainfall expected
VH
very high heat & humidity
19
kph wind from NW

Idaho weather for Tuesday 21st July 2026

Expect broken clouds in Idaho with a maximum temperature of 35°C, high levels of heat & humidity, maximum UV of 8 (Very High) and 1 hour of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 16 kph from the north-west.