Grand Junction weather live forecast

Today's maximum temperature in Grand Junction is expected to be 23°C. Select a day from the live weather forecast for Grand Junction, Colorado, USA for more weather parameters.

Thursday
17th Sep
23

18

2

6
Friday
18th Sep
25

17

5

6
Saturday
19th Sep
25

15

5

7
Sunday
20th Sep
25

14

11

7
Monday
21st Sep
26

12

10

8

5-day weather forecast updated at 04:01 on Thursday 17th September 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 Thursday 17th September 2026

Expect isolated thunderstorms in Grand Junction, Colorado with a maximum temperature of 23°C, maximum UV of 6 (High) and 2 hours of bright sunshine. There are 10-20 mm of rainfall expected with 84% chance of some rain and a gentle breeze of 15 kph from the south-east.

23
°C maximum temperature
18
°C minimum temperature
isolated thunderstorms
2
hours of sunshine
6
UV index (High)
84
% chance of some rain
<20
mm of rainfall expected
0
no heat & humidity
15
kph wind from SE

Grand Junction weather for Friday 18th September 2026

Expect isolated thunderstorms in Grand Junction, Colorado with a maximum temperature of 25°C, maximum UV of 6 (High) and 5 hours of bright sunshine. There are 2-5 mm of rainfall expected with 63% chance of some rain and a gentle breeze of 17 kph from the south-east.

25
°C maximum temperature
17
°C minimum temperature
isolated thunderstorms
5
hours of sunshine
6
UV index (High)
63
% chance of some rain
<5
mm of rainfall expected
0
no heat & humidity
17
kph wind from SE

Grand Junction weather for Saturday 19th September 2026

Expect isolated thunderstorms in Grand Junction, Colorado with a maximum temperature of 25°C, maximum UV of 7 (High) and 5 hours of bright sunshine. There are 5-10 mm of rainfall expected with 62% chance of some rain and a gentle breeze of 16 kph from the south-east.

25
°C maximum temperature
15
°C minimum temperature
isolated thunderstorms
5
hours of sunshine
7
UV index (High)
62
% chance of some rain
<10
mm of rainfall expected
25
°C wind chill
16
kph wind from SE

Grand Junction weather for Sunday 20th September 2026

Expect scattered clouds in Grand Junction, Colorado with a maximum temperature of 25°C, maximum UV of 7 (High) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 19 kph from the north-west.

25
°C maximum temperature
14
°C minimum temperature
scattered clouds
11
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
0
no heat & humidity
19
kph wind from NW

Grand Junction weather for Monday 21st September 2026

Expect scattered clouds in Grand Junction, Colorado with a maximum temperature of 26°C, maximum UV of 8 (Very High) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 14 kph from the south-east.