Grand Junction weather live forecast

Today's maximum temperature in Grand Junction is expected to be 28°C. Select a day from the live weather forecast for Grand Junction, Colorado, USA for more weather parameters.

Sunday
30th Aug
28

18

6

7
Monday
31st Aug
25

18

6

7
Tuesday
1st Sep
27

17

8

8
Wednesday
2nd Sep
29

17

6

9
Thursday
3rd Sep
30

17

8

8

5-day weather forecast updated at 04:01 on Sunday 30th 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 Sunday 30th August 2026

Expect isolated thunderstorms in Grand Junction, Colorado with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 7 (High) and 6 hours of bright sunshine. There are 10-20 mm of rainfall expected with 65% chance of some rain and a moderate breeze of 21 kph from the south-east.

28
°C maximum temperature
18
°C minimum temperature
isolated thunderstorms
6
hours of sunshine
7
UV index (High)
65
% chance of some rain
<20
mm of rainfall expected
L
low heat & humidity
21
kph wind from SE

Grand Junction weather for Monday 31st August 2026

Expect isolated thunderstorms in Grand Junction, Colorado with a maximum temperature of 25°C, maximum UV of 7 (High) and 6 hours of bright sunshine. There are 5-10 mm of rainfall expected with 74% chance of some rain and a gentle breeze of 15 kph from the south-east.

25
°C maximum temperature
18
°C minimum temperature
isolated thunderstorms
6
hours of sunshine
7
UV index (High)
74
% chance of some rain
<10
mm of rainfall expected
25
°C wind chill
15
kph wind from SE

Grand Junction weather for Tuesday 1st September 2026

Expect isolated thunderstorms in Grand Junction, Colorado with a maximum temperature of 27°C, low 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 22% chance of some rain and a gentle breeze of 18 kph from the south-east.

27
°C maximum temperature
17
°C minimum temperature
isolated thunderstorms
8
hours of sunshine
8
UV index (Very High)
22
% chance of some rain
<2
mm of rainfall expected
L
low heat & humidity
18
kph wind from SE

Grand Junction weather for Wednesday 2nd September 2026

Expect scattered clouds in Grand Junction, Colorado with a maximum temperature of 29°C, low levels of heat & humidity, maximum UV of 9 (Very High) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 24 kph from the south-east.

29
°C maximum temperature
17
°C minimum temperature
scattered clouds
6
hours of sunshine
9
UV index (Very High)
0
mm of rainfall expected
L
low heat & humidity
24
kph wind from SE

Grand Junction weather for Thursday 3rd September 2026

Expect scattered clouds in Grand Junction, Colorado with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 8 (Very High) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 24 kph from the south-east.