UV Index for Grantsville, UT

Current Grantsville UV Index

0 (Low)

Last Updated 12 minutes ago

Hourly Grantsville UV Index

The hourly Grantsville, UT UV Index forecast for Thursday, May 1st, 2025.

5 Day Hourly Grantsville UV Index Forecast

Last Updated 16 hours ago

The UV index forecast for the next five days in Grantsville, UT has no days reaching the extreme level and 3 days reaching the high or very high levels. The peak UV intensity in Grantsville over the next five days will be 8.8 on Friday, May 2nd at 1:00 pm.

The UV index forecast for Thursday, May 1st in Grantsville, UT is below.

Time UV Index Risk
5am 0
Low
6am 0
Low
7am 0
Low
8am 0.5
Low
9am 1.6
Low
10am 3.2
Moderate
11am 5.3
Moderate
12pm 7.2
High
1pm 8.4
Very High
2pm 8.4
Very High
3pm 7.4
High
4pm 5.4
Moderate
5pm 3.4
Moderate
6pm 1.6
Low
7pm 0.6
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Friday, May 2nd in Grantsville, UT 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 0.6
Low
9am 1.7
Low
10am 3.4
Moderate
11am 5.6
Moderate
12pm 7.6
High
1pm 8.8
Very High
2pm 8.7
Very High
3pm 6.5
High
4pm 4.9
Moderate
5pm 2.8
Low
6pm 1.6
Low
7pm 0.5
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Saturday, May 3rd in Grantsville, UT 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 0.6
Low
9am 1.6
Low
10am 3.4
Moderate
11am 5.4
Moderate
12pm 7.3
High
1pm 8.4
Very High
2pm 5.5
Moderate
3pm 6.6
High
4pm 5
Moderate
5pm 3.3
Moderate
6pm 1.2
Low
7pm 0.2
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Sunday, May 4th in Grantsville, UT 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