Grand Junction weather live forecast

Today's maximum temperature in Grand Junction is expected to be 21°C. Select a day from the live weather forecast for Grand Junction, Colorado, USA for more weather parameters.

Sunday
17th May
21

13

3

5
Monday
18th May
14

7

5

2
Tuesday
19th May
18

6

12

7
Wednesday
20th May
22

5

13

8
Thursday
21st May
24

9

5

8

5-day weather forecast updated at 04:00 on Sunday 17th May 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 17th May 2026

Expect isolated thunderstorms in Grand Junction, Colorado with a maximum temperature of 21°C, maximum UV of 5 (Moderate) and 3 hours of bright sunshine. There are 2-5 mm of rainfall expected with 88% chance of some rain and a gentle breeze of 18 kph from the west.

21
°C maximum temperature
13
°C minimum temperature
isolated thunderstorms
3
hours of sunshine
5
UV index (Moderate)
88
% chance of some rain
<5
mm of rainfall expected
0
no heat & humidity
18
kph wind from W

Grand Junction weather for Monday 18th May 2026

Expect isolated thunderstorms in Grand Junction, Colorado with a maximum temperature of 14°C, maximum UV of 2 (Low) and 5 hours of bright sunshine. There are 10-20 mm of rainfall expected with 72% chance of some rain and a moderate breeze of 22 kph from the west.

14
°C maximum temperature
7
°C minimum temperature
isolated thunderstorms
5
hours of sunshine
2
UV index (Low)
72
% chance of some rain
<20
mm of rainfall expected
0
no heat & humidity
22
kph wind from W

Grand Junction weather for Tuesday 19th May 2026

Expect scattered clouds in Grand Junction, Colorado with a maximum temperature of 18°C, maximum UV of 7 (High) and 12 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 17 kph from the north-west.

18
°C maximum temperature
6
°C minimum temperature
scattered clouds
12
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
18
°C wind chill
17
kph wind from NW

Grand Junction weather for Wednesday 20th May 2026

Expect scattered clouds in Grand Junction, Colorado with a maximum temperature of 22°C, maximum UV of 8 (Very High) and 13 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 17 kph from the north-west.

22
°C maximum temperature
5
°C minimum temperature
scattered clouds
13
hours of sunshine
8
UV index (Very High)
0
mm of rainfall expected
22
°C wind chill
17
kph wind from NW

Grand Junction weather for Thursday 21st May 2026

Expect broken clouds in Grand Junction, Colorado with a maximum temperature of 24°C, maximum UV of 8 (Very High) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 14 kph from the north-west.