UV Index for Princeton, NJ

Current Princeton UV Index

0 (Low)

Last Updated 9 minutes ago

Hourly Princeton UV Index

The hourly Princeton, NJ UV Index forecast for Friday, July 4th, 2025.

5 Day Hourly Princeton UV Index Forecast

Last Updated 13 hours ago

The UV index forecast for the next five days in Princeton, NJ has no days reaching the extreme level and 3 days reaching the high or very high levels. The peak UV intensity in Princeton over the next five days will be 10 on Sunday, July 6th at 1:00 pm.

The UV index forecast for Friday, July 4th in Princeton, NJ is below.

Time UV Index Risk
4am 0
Low
5am 0
Low
6am 0
Low
7am 0.4
Low
8am 1.2
Low
9am 2.6
Low
10am 4.6
Moderate
11am 6.6
High
12pm 8.1
Very High
1pm 8.6
Very High
2pm 8.1
Very High
3pm 6.7
High
4pm 4.7
Moderate
5pm 2.7
Low
6pm 1.2
Low
7pm 0.4
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Saturday, July 5th in Princeton, NJ 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 0.4
Low
8am 1.3
Low
9am 2.8
Low
10am 4.9
Moderate
11am 7
High
12pm 8.5
Very High
1pm 8.4
Very High
2pm 7.8
High
3pm 6.5
High
4pm 4.6
Moderate
5pm 2.7
Low
6pm 1.3
Low
7pm 0.4
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Sunday, July 6th in Princeton, NJ 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 0.4
Low
8am 1.4
Low
9am 3.1
Moderate
10am 5.3
Moderate
11am 7.6
High
12pm 9.3
Very High
1pm 10
Very High
2pm 9.4
Very High
3pm 7.7
High
4pm 5.4
Moderate
5pm 3.1
Moderate
6pm 1.4
Low
7pm 0.4
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Monday, July 7th in Princeton, NJ 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 0.4
Low
8am 1.3
Low