Grand Junction weather live forecast

Today's maximum temperature in Grand Junction is expected to be 14°C. Select a day from the live weather forecast for Grand Junction, Colorado, USA for more weather parameters.

Monday
18th May
14

6

4

4
Tuesday
19th May
18

4

9

8
Wednesday
20th May
21

7

15

8
Thursday
21st May
24

9

6

9
Friday
22nd May
24

9

10

8

5-day weather forecast updated at 04:01 on Monday 18th 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 Monday 18th May 2026

Expect isolated thunderstorms in Grand Junction, Colorado with a maximum temperature of 14°C, maximum UV of 4 (Moderate) and 4 hours of bright sunshine. There are 10-20 mm of rainfall expected with 86% chance of some rain and a moderate breeze of 27 kph from the west.

14
°C maximum temperature
6
°C minimum temperature
isolated thunderstorms
4
hours of sunshine
4
UV index (Moderate)
86
% chance of some rain
<20
mm of rainfall expected
14
°C wind chill
27
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 8 (Very High) and 9 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
4
°C minimum temperature
scattered clouds
9
hours of sunshine
8
UV index (Very High)
0
mm of rainfall expected
0
no heat & humidity
17
kph wind from NW

Grand Junction weather for Wednesday 20th May 2026

Expect clear skies in Grand Junction, Colorado with a maximum temperature of 21°C, maximum UV of 8 (Very High) and 15 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 16 kph from the north-west.

21
°C maximum temperature
7
°C minimum temperature
clear skies
15
hours of sunshine
8
UV index (Very High)
0
mm of rainfall expected
0
no heat & humidity
16
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 9 (Very High) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 22 kph from the west.

24
°C maximum temperature
9
°C minimum temperature
broken clouds
6
hours of sunshine
9
UV index (Very High)
0
mm of rainfall expected
0
no heat & humidity
22
kph wind from W

Grand Junction weather for Friday 22nd May 2026

Expect scattered clouds in Grand Junction, Colorado with a maximum temperature of 24°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 19 kph from the north-west.