Old River-Winfree, TX: Current UV Index and Hourly Forecast

On this page, you can find the current UV Index and hourly 5 day UV Index forecast for Old River-Winfree, Chambers County, Texas (TX). The Ultraviolet Index forecast, which measures the radiation from the sun that reaches the Earth's surface is updated daily.

Current UV Index
3:42 PM CDT

9.5Risk: Very High

(Updated 42 minutes ago.)

As of 3:42 PM CDT, the UV Index in Old River-Winfree, TX is 9.5 (Very High).
The UV Index is expected to fall sharply to 6.7 (High) between 4:00 PM - 5:00 PM CDT today.

Hourly UV Index Forecast for Today
Thursday, July 17, 2025

8 AM11 AM2 PM5 PM8 PM11 PMCentral Daylight Time (CDT)0123456789101112Current Time: 3:42 PM, CDT

UV Index Data sourced from the NOAA.


As of 3:42 PM CDT today in Old River-Winfree, TX, the UV Index is currently at a very high level of 9.5. As the day progresses, the UV index is expected to fall as the sun sets.

It will return to moderate levels at 5:00 PM and then drop to low levels again from 6:00 PM onwards. As the day transitions into the night, the UV Index will drop back down to 0 at 8:00 PM.


Summary of Hourly UV Index Forecast for Today and Tomorrow in Old River-Winfree, TX

Today

Time RangeUV IndexRisk
8:00 AM - 10:00 AM (CDT)0.7 - 2.2
Low
10:00 AM - 11:00 AM4.8
Moderate
11:00 AM - 12:00 PM7.3
High
12:00 PM - 1:00 PM9.3
Very High
1:00 PM - 3:00 PM11 - 11.1
Extreme
3:00 PM - 4:00 PM9.5
Very High
4:00 PM - 5:00 PM6.7
High
5:00 PM - 6:00 PM2.9
Moderate
6:00 PM - 12:00 AM0 - 0.4
Low

Tomorrow

Time RangeUV IndexRisk
12:00 AM - 12:00 AM (CDT)0 - 2
Low

Detailed Hourly Old River-Winfree UV Index Forecast for the next 5 days

Download CSV (Excel) ↓
TimeUV IndexRisk
3:00 PM - 4:00 PM (Now, CDT)9.5
Very High
4:00 PM - 5:00 PM 6.7
High
5:00 PM - 6:00 PM 2.9
Moderate
6:00 PM - 7:00 PM 0.4
Low
7:00 PM - 8:00 PM 0.2
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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