Harris County, TX: Current UV Index and Hourly Forecast

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As of 9:35 AM CDT on June 25, 2025, all 37 cities in Harris County, TX in our database have a UV Index reading of Low. The city with the highest UV Index reading right now is Baytown, TX with a reading of 2.3.

Over the next 24 hours, the highest UV Index reading in Harris County, TX is expected to be 10.9 in Spring between 1:00 PM - 2:00 PM CDT today.

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Current UV Index in Cities in Harris County, TX

• Aldine - 2.2
• Atascocita - 2.2
• Barrett - 2.3
• Baytown - 2.3
• Bellaire - 2.1
• Bunker Hill Village - 2.1
• Channelview - 2.3
• Cloverleaf - 2.2
• Crosby - 2.1
• Deer Park - 2.3
• El Lago - 2.3
• Galena Park - 2.2
• Hedwig Village - 2.1
• Highlands - 2.3
• Hilshire Village - 2.1
• Houston - 2.1
• Humble - 2.2
• Hunters Creek Village - 2.1
• Jacinto City - 2.2
• Jersey Village - 2.2
• Katy - 2
• La Porte - 2.3
• Morgan's Point - 2.3
• Nassau Bay - 2.3
• Pasadena - 2.2
• Piney Point Village - 2.1
• Seabrook - 2.3
• Sheldon - 2.2
• Shoreacres - 2.3
• South Houston - 2.2
• Southside Place - 2.1
• Spring - 2.2
• Spring Valley Village - 2.1
• Taylor Lake Village - 2.3
• Tomball - 2.2
• Webster - 2.3
• West University Place - 2.1