West Whittier-Los Nietos, CA: Current UV Index and Hourly Forecast

On this page, you can find the current UV Index and hourly 5 day UV Index forecast for West Whittier-Los Nietos, Los Angeles County, California (CA). The Ultraviolet Index forecast, which measures the radiation from the sun that reaches the Earth's surface is updated daily.

Current UV Index
4:07 PM PDT

3.6Risk: Moderate

(Updated 7 minutes ago.)

As of 4:07 PM PDT, the UV Index in West Whittier-Los Nietos, CA is 3.6 (Moderate).
The UV Index is expected to fall sharply to 1.7 (Low) between 5:00 PM - 6:00 PM PDT today.

Hourly UV Index Forecast for Today
Thursday, August 28, 2025

6 AM9 AM12 PM3 PM6 PM9 PMPacific Daylight Time (PDT)0123456789101112Current Time: 4:07 PM, PDT

UV Index Data sourced from the NOAA.


As of 4:07 PM PDT today in West Whittier-Los Nietos, CA, the UV Index is currently at a moderate level of 3.6. As the day progresses, the UV index is expected to fall as the sun sets.

The UV Index will return to low levels of 1.7 at 5:00 PM. As the day transitions into the night, the UV Index will drop back down to 0 at 7:00 PM.


Summary of Hourly UV Index Forecast for Today and Tomorrow in West Whittier-Los Nietos, CA

Today

Time RangeUV IndexRisk
6:00 AM - 10:00 AM (PDT)0 - 1.5
Low
10:00 AM - 11:00 AM3.8
Moderate
11:00 AM - 1:00 PM6.1 - 6.6
High
1:00 PM - 2:00 PM8.5
Very High
2:00 PM - 3:00 PM6.2
High
3:00 PM - 5:00 PM3.6 - 3.9
Moderate
5:00 PM - 12:00 AM0 - 1.7
Low

Tomorrow

Time RangeUV IndexRisk
12:00 AM - 10:00 AM (PDT)0 - 2.4
Low
10:00 AM - 11:00 AM4.8
Moderate
11:00 AM - 12:00 PM7.2
High
12:00 PM - 3:00 PM8.7 - 9.6
Very High
3:00 PM - 4:00 PM6.6
High
4:00 PM - 5:00 PM4
Moderate
5:00 PM - 12:00 AM0 - 1.9
Low

Detailed Hourly West Whittier-Los Nietos UV Index Forecast for the next 5 days

Download CSV (Excel) ↓
TimeUV IndexRisk
4:00 PM - 5:00 PM (Now, PDT)3.6
Moderate
5:00 PM - 6:00 PM 1.7
Low
6:00 PM - 7:00 PM 0.5
Low
7:00 PM - 8:00 PM 0
Low
8:00 PM - 9:00 PM 0
Low
9:00 PM - 10:00 PM 0
Low
10:00 PM - 11:00 PM 0
Low
11:00 PM - 12:00 AM 0
Low

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