Grand Junction weather live forecast

Today's maximum temperature in Grand Junction is expected to be 37°C. Select a day from the live weather forecast for Grand Junction, Colorado, USA for more weather parameters.

Tuesday
11th Aug
37

24

10

9
Wednesday
12th Aug
33

23

7

7
Thursday
13th Aug
29

21

7

7
Friday
14th Aug
29

20

9

7
Saturday
15th Aug
30

19

8

9

5-day weather forecast updated at 04:00 on Tuesday 11th August 2026 GMT

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

Grand Junction weather forecast by day

Below are the detailed weather forecasts for Grand Junction for the next 5 days.

Grand Junction weather for Tuesday 11th August 2026

Expect sunshine and showers in Grand Junction, Colorado with a maximum temperature of 37°C, high levels of heat & humidity, maximum UV of 9 (Very High) and 10 hours of bright sunshine. There are 0-2 mm of rainfall expected with 25% chance of some rain and a gentle breeze of 17 kph from the north-west.

37
°C maximum temperature
24
°C minimum temperature
sunshine and showers
10
hours of sunshine
9
UV index (Very High)
25
% chance of some rain
<2
mm of rainfall expected
H
high heat & humidity
17
kph wind from NW

Grand Junction weather for Wednesday 12th August 2026

Expect isolated thunderstorms in Grand Junction, Colorado with a maximum temperature of 33°C, moderate levels of heat & humidity, maximum UV of 7 (High) and 7 hours of bright sunshine. There are 0-2 mm of rainfall expected with 39% chance of some rain and a gentle breeze of 19 kph from the east.

33
°C maximum temperature
23
°C minimum temperature
isolated thunderstorms
7
hours of sunshine
7
UV index (High)
39
% chance of some rain
<2
mm of rainfall expected
M
moderate heat & humidity
19
kph wind from E

Grand Junction weather for Thursday 13th August 2026

Expect isolated thunderstorms in Grand Junction, Colorado with a maximum temperature of 29°C, low levels of heat & humidity, maximum UV of 7 (High) and 7 hours of bright sunshine. There are 5-10 mm of rainfall expected with 80% chance of some rain and a gentle breeze of 16 kph from the south-east.

29
°C maximum temperature
21
°C minimum temperature
isolated thunderstorms
7
hours of sunshine
7
UV index (High)
80
% chance of some rain
<10
mm of rainfall expected
L
low heat & humidity
16
kph wind from SE

Grand Junction weather for Friday 14th August 2026

Expect scattered clouds in Grand Junction, Colorado with a maximum temperature of 29°C, low levels of heat & humidity, maximum UV of 7 (High) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 18 kph from the south-east.

29
°C maximum temperature
20
°C minimum temperature
scattered clouds
9
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
L
low heat & humidity
18
kph wind from SE

Grand Junction weather for Saturday 15th August 2026

Expect sunshine and showers in Grand Junction, Colorado with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 9 (Very High) and 8 hours of bright sunshine. There are 0-2 mm of rainfall expected with 16% chance of some rain and a gentle breeze of 16 kph from the south-east.