UV Index for Grannis, AR

Current Grannis UV Index

3.3 (Moderate)

Last Updated 38 minutes ago

Hourly Grannis UV Index

The hourly Grannis, AR UV Index forecast for Wednesday, September 3rd, 2025.

5 Day Hourly Grannis UV Index Forecast

Last Updated 21 hours ago

The UV index forecast for the next five days in Grannis, AR has no days reaching the extreme level and 3 days reaching the high or very high levels. The peak UV intensity in Grannis over the next five days will be 8.6 on Wednesday, September 3rd at 1:00 pm.

The UV index forecast for Wednesday, September 3rd in Grannis, AR is below.

Time UV Index Risk
11am 5.6
Moderate
12pm 7.6
High
1pm 8.6
Very High
2pm 8.4
Very High
3pm 6.9
High
4pm 4.7
Moderate
5pm 2.4
Low
6pm 0.9
Low
7pm 0.2
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Thursday, September 4th in Grannis, AR 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 1.4
Low
10am 3.2
Moderate
11am 5.2
Moderate
12pm 7.1
High
1pm 8.2
Very High
2pm 7.8
High
3pm 6.4
High
4pm 4.2
Moderate
5pm 2.2
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 Friday, September 5th in Grannis, AR 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 0.3
Low
9am 1.3
Low
10am 3
Moderate
11am 5.1
Moderate
12pm 7.1
High
1pm 8.2
Very High
2pm 8.1
Very High
3pm 6.6
High
4pm 4.4
Moderate
5pm 2.3
Low
6pm 0.8
Low
7pm 0.1
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Saturday, September 6th in Grannis, AR 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