UV Index for Rancho Cucamonga, CA

Current Rancho Cucamonga UV Index

0 (Low)

Last Updated 54 minutes ago

Hourly Rancho Cucamonga UV Index

The hourly Rancho Cucamonga, CA UV Index forecast for Thursday, March 27th, 2025.

5 Day Hourly Rancho Cucamonga UV Index Forecast

Last Updated 16 hours ago

The UV index forecast for the next five days in Rancho Cucamonga, CA has no days reaching the extreme level and 3 days reaching the high or very high levels. The peak UV intensity in Rancho Cucamonga over the next five days will be 7.4 on Friday, March 28th at 1:00 pm.

The UV index forecast for Thursday, March 27th in Rancho Cucamonga, CA is below.

Time UV Index Risk
4am 0
Low
5am 0
Low
6am 0
Low
7am 0
Low
8am 0.4
Low
9am 1.4
Low
10am 2.5
Low
11am 4.7
Moderate
12pm 6.6
High
1pm 7.2
High
2pm 6.3
High
3pm 4.7
Moderate
4pm 3
Moderate
5pm 1.3
Low
6pm 0.4
Low
7pm 0
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Friday, March 28th in Rancho Cucamonga, CA 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 0.5
Low
9am 1.5
Low
10am 2.9
Low
11am 5
Moderate
12pm 6.9
High
1pm 7.4
High
2pm 6.7
High
3pm 5
Moderate
4pm 2.8
Low
5pm 1.2
Low
6pm 0.4
Low
7pm 0
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Saturday, March 29th in Rancho Cucamonga, CA 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 1.2
Low
10am 2.7
Low
11am 4.9
Moderate
12pm 6.3
High
1pm 7
High
2pm 6.4
High
3pm 4.9
Moderate
4pm 3
Moderate
5pm 1.4
Low
6pm 0.4
Low
7pm 0
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Sunday, March 30th in Rancho Cucamonga, CA is below.

Time UV Index Risk
12am 0
Low
1am 0
Low
2am 0
Low
3am 0
Low
4am 0
Low
5am 0
Low