UV Index for Annandale, VA

Current Annandale UV Index

3.4 (Moderate)

Last Updated 53 minutes ago

Hourly Annandale UV Index

The hourly Annandale, VA UV Index forecast for Monday, September 15th, 2025.

5 Day Hourly Annandale UV Index Forecast

Last Updated 52 minutes ago

The UV index forecast for the next five days in Annandale, VA has no days reaching the extreme level and 1 day reaching the high or very high levels. The peak UV intensity in Annandale over the next five days will be 6.2 on Thursday, September 18th at 2:00 pm.

The UV index forecast for Monday, September 15th in Annandale, VA is below.

Time UV Index Risk
3pm 1.2
Low
4pm 0.6
Low
5pm 0.4
Low
6pm 0.1
Low
7pm 0
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Tuesday, September 16th in Annandale, VA 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 0.2
Low
9am 0.8
Low
10am 1.9
Low
11am 1.7
Low
12pm 1.9
Low
1pm 2.6
Low
2pm 2.4
Low
3pm 1.6
Low
4pm 1
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 Wednesday, September 17th in Annandale, VA 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 0.2
Low
10am 0.4
Low
11am 0.6
Low
12pm 0.9
Low
1pm 1.1
Low
2pm 1
Low
3pm 0.8
Low
4pm 0.5
Low
5pm 0.3
Low
6pm 0.1
Low
7pm 0
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Thursday, September 18th in Annandale, VA 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 0.1
Low
9am 0.5
Low
10am 2
Low
11am 4.4
Moderate
12pm 5.5
Moderate
1pm 5.8
Moderate
2pm 6.2
High
3pm 5
Moderate
4pm 3.2
Moderate
5pm 1.5
Low
6pm 0.5
Low
7pm 0
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Friday, September 19th in Annandale, VA 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 0.2
Low