Siskiyou County, CA: Current UV Index and Hourly Forecast

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As of 12:52 PM PST on December 14, 2025, all 21 cities in Siskiyou County, CA in our database have a UV Index reading of Low. The city with the highest UV Index reading right now is Yreka, CA with a reading of 1.6.

Over the next 24 hours, the highest UV Index reading in Siskiyou County, CA is expected to be 1.6 in Yreka between 12:00 PM - 1:00 PM PST today.

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Current UV Index in Cities in Siskiyou County, CA

• Carrick - 1.3
• Dorris - 1.3
• Dunsmuir - 1.3
• Edgewood - 1.5
• Etna - 1.6
• Fort Jones - 1.6
• Gazelle - 1.5
• Greenview - 1.6
• Grenada - 1.6
• Happy Camp - 1.6
• Hornbrook - 1.5
• Lake Shastina - 1.5
• Macdoel - 1.4
• McCloud - 1.3
• Montague - 1.6
• Mount Hebron - 1.4
• Mount Shasta - 1.3
• Tennant - 1.5
• Tulelake - 1.5
• Weed - 1.5
• Yreka - 1.6