UV Index for St. Clair, PA

Current St. Clair UV Index

0.1 (Low)

Last Updated 3 minutes ago

Hourly St. Clair UV Index

The hourly St. Clair, PA UV Index forecast for Tuesday, February 17th, 2026.

5 Day Hourly St. Clair UV Index Forecast

Last Updated 4 hours ago

The UV index forecast for the next five days in St. Clair, PA has no days reaching the extreme level and no days reaching the high or very high levels. The peak UV intensity in St. Clair over the next five days will be 3.3 on Friday, February 20th at 12:00 pm.

The UV index forecast for Tuesday, February 17th in St. Clair, PA is below.

Time UV Index Risk
6pm 0
Low
7pm 0
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Wednesday, February 18th in St. Clair, PA 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 0.4
Low
10am 0.5
Low
11am 1.4
Low
12pm 0.8
Low
1pm 0.2
Low
2pm 0.2
Low
3pm 0.2
Low
4pm 0
Low
5pm 0
Low
6pm 0
Low
7pm 0
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Thursday, February 19th in St. Clair, PA 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 0.4
Low
10am 0.8
Low
11am 2.5
Low
12pm 3
Moderate
1pm 2.9
Low
2pm 2.3
Low
3pm 1.2
Low
4pm 0
Low
5pm 0
Low
6pm 0
Low
7pm 0
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Friday, February 20th in St. Clair, PA 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 0.7
Low
10am 1.8
Low
11am 2.8
Low
12pm 3.3
Moderate
1pm 2.8
Low
2pm 2.4
Low
3pm 1.6
Low
4pm 0.6
Low
5pm 0.2
Low
6pm 0
Low
7pm 0
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Saturday, February 21st in St. Clair, PA 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