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McKinney UV Index Today

Day Summary

The UV index in McKinney, United States Flag of United States will reach a high of 9.6 today. This means a veryhigh level of sun exposure. See our tips below to stay safe!

Last checked: 2025-08-01

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

UV index

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.

Disclaimer

* The information on this page about the UV index in McKinney is for educational purposes only. It is not a substitute for professional medical advice. Always consult a doctor for any health concerns.