Grand Junction weather live forecast

Today's maximum temperature in Grand Junction is expected to be 34°C. Select a day from the live weather forecast for Grand Junction, Colorado, USA for more weather parameters.

Wednesday
26th Aug
34

20

11

9
Thursday
27th Aug
35

20

13

9
Friday
28th Aug
35

20

10

9
Saturday
29th Aug
33

21

8

8
Sunday
30th Aug
29

20

7

7

5-day weather forecast updated at 04:01 on Wednesday 26th August 2026 GMT

More about Grand Junction

Grand Junction by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Colorado

Intrepid Travel discount code: £200 off small group tours

Discount Code

Save EXTRA £200 on select small group tours worldwide
Min spend of £1,500 per person. T&Cs apply
Travel before 30th June 2027 (inclusive)

Show discount code

******011

Redeem Intrepid Travel discount code >>

Expires at 23:59 on Monday 31st Aug 2026 · View all Intrepid Travel offers

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 Wednesday 26th August 2026

Expect scattered clouds in Grand Junction, Colorado with a maximum temperature of 34°C, high levels of heat & humidity, maximum UV of 9 (Very High) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 16 kph from the south-east.

34
°C maximum temperature
20
°C minimum temperature
scattered clouds
11
hours of sunshine
9
UV index (Very High)
0
mm of rainfall expected
H
high heat & humidity
16
kph wind from SE

Grand Junction weather for Thursday 27th August 2026

Expect scattered clouds in Grand Junction, Colorado with a maximum temperature of 35°C, high levels of heat & humidity, maximum UV of 9 (Very High) and 13 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 17 kph from the east.

35
°C maximum temperature
20
°C minimum temperature
scattered clouds
13
hours of sunshine
9
UV index (Very High)
0
mm of rainfall expected
H
high heat & humidity
17
kph wind from E

Grand Junction weather for Friday 28th August 2026

Expect scattered clouds in Grand Junction, Colorado with a maximum temperature of 35°C, high levels of heat & humidity, maximum UV of 9 (Very High) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 21 kph from the south-east.

35
°C maximum temperature
20
°C minimum temperature
scattered clouds
10
hours of sunshine
9
UV index (Very High)
0
mm of rainfall expected
H
high heat & humidity
21
kph wind from SE

Grand Junction weather for Saturday 29th August 2026

Expect sunshine and showers in Grand Junction, Colorado with a maximum temperature of 33°C, moderate levels of heat & humidity, maximum UV of 8 (Very High) and 8 hours of bright sunshine. There are 0-2 mm of rainfall expected with 28% chance of some rain and a moderate breeze of 23 kph from the south-east.

33
°C maximum temperature
21
°C minimum temperature
sunshine and showers
8
hours of sunshine
8
UV index (Very High)
28
% chance of some rain
<2
mm of rainfall expected
M
moderate heat & humidity
23
kph wind from SE

Grand Junction weather for Sunday 30th August 2026

Expect sunshine and showers 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 2-5 mm of rainfall expected with 42% chance of some rain and a gentle breeze of 15 kph from the south-east.