UV Index for Grand Junction, IA

Current Grand Junction UV Index

0 (Low)

Last Updated 44 minutes ago

Hourly Grand Junction UV Index

The hourly Grand Junction, IA UV Index forecast for Sunday, August 31st, 2025.

5 Day Hourly Grand Junction UV Index Forecast

Last Updated 14 hours ago

The UV index forecast for the next five days in Grand Junction, IA has no days reaching the extreme level and 1 day reaching the high or very high levels. The peak UV intensity in Grand Junction over the next five days will be 6.9 on Tuesday, September 2nd at 1:00 pm.

The UV index forecast for Sunday, August 31st in Grand Junction, IA is below.

Time UV Index Risk
4am 0
Low
5am 0
Low
6am 0
Low
7am 0
Low
8am 0.3
Low
9am 0.6
Low
10am 1.1
Low
11am 0.9
Low
12pm 0.9
Low
1pm 1.8
Low
2pm 3
Moderate
3pm 3.8
Moderate
4pm 2
Low
5pm 0.6
Low
6pm 0.2
Low
7pm 0
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Monday, September 1st in Grand Junction, IA is below.

Time UV Index Risk
12am 0
Low
1am 0
Low
2am 0
Low
3am 0
Low
4am 0
Low
5am 0
Low
6am 0
Low
7am 0
Low
8am 0
Low
9am 0.1
Low
10am 0.2
Low
11am 0.2
Low
12pm 0.3
Low
1pm 0.8
Low
2pm 1.2
Low
3pm 3.4
Moderate
4pm 3
Moderate
5pm 1.8
Low
6pm 0.8
Low
7pm 0.2
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Tuesday, September 2nd in Grand Junction, IA is below.

Time UV Index Risk
12am 0
Low
1am 0
Low
2am 0
Low
3am 0
Low
4am 0
Low
5am 0
Low
6am 0
Low
7am 0
Low
8am 0.4
Low
9am 1.2
Low
10am 2.7
Low
11am 4.4
Moderate
12pm 6
High
1pm 6.9
High
2pm 6.6
High
3pm 5.5
Moderate
4pm 3.8
Moderate
5pm 2
Low
6pm 0.8
Low
7pm 0.2
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Wednesday, September 3rd in Grand Junction, IA is below.

Time UV Index Risk
12am 0
Low
1am 0
Low
2am 0
Low
3am 0
Low
4am 0
Low
5am 0
Low
6am 0
Low
7am 0
Low