Collin County, TX: Current UV Index and Hourly Forecast

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As of 9:13 AM CDT on June 25, 2025, all 25 cities in Collin County, TX in our database have a UV Index reading of Low. The city with the highest UV Index reading right now is Wylie, TX with a reading of 2.3.

Over the next 24 hours, the highest UV Index reading in Collin County, TX is expected to be 11 in Plano between 1:00 PM - 2:00 PM CDT today.

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Current UV Index in Cities in Collin County, TX

• Allen - 2.2
• Anna - 2.3
• Blue Ridge - 2.3
• Celina - 2.2
• Fairview - 2.3
• Farmersville - 2.3
• Frisco - 2.2
• Josephine - 2.3
• Lavon - 2.3
• Lowry Crossing - 2.3
• Lucas - 2.3
• McKinney - 2.2
• Melissa - 2.3
• Murphy - 2.3
• Nevada - 2.3
• New Hope - 2.3
• Parker - 2.3
• Plano - 2.2
• Princeton - 2.3
• Prosper - 2.2
• Seis Lagos - 2.3
• St. Paul - 2.3
• Westminster - 2.3
• Weston - 2.2
• Wylie - 2.3