McKinney UV Index Today
- Current UV Index0.0
- Cloud Cover00%
- Temperature00.0 ℃
Day Summary
- Max UV Index9.1
- Avg Clouds17%
- Max Temp32.7 ℃
- Peak UV at 1 PM
- Protection Required ☀️
The UV index in McKinney, United States 
will reach a high of 9.1 today. This means a veryhigh level of sun exposure. See our tips below to stay safe!
Last checked: 2025-08-22
Hourly Forecast Chart
Today's Safety Tips
The risk is very high. It's best to stay out of the sun between 10 a.m. and 4 p.m. If you must be outside, wear protective clothing and apply sunscreen often.
McKinney's UV Index
McKinney, United States generally experiences a UV index ranging from moderate to high, especially during late spring and summer months, typically between 5 and 9.
Weather Seasons
Seasonal patterns in McKinney include hot, humid summers with temperatures often in the 90s °F (30s °C), mild winters with occasional cold snaps, and spring and fall bring moderate temperatures and some rainfall.
McKinney's Climate
Compared to the wider Texas region, McKinney has slightly cooler winters due to its northern location. Neighboring states like Oklahoma have more extreme winter weather, while southern states like Louisiana experience higher humidity and warmer winters year-round.
Hourly UV Index Trend
See the UV index hour by hour for McKinney. When the level is high, it's smart to find some shade.
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