Siskiyou County, CA: Current UV Index and Hourly Forecast

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As of 4:22 PM PDT on August 16, 2026, all 21 cities in Siskiyou County, CA in our database have a UV Index reading of Moderate. The city with the highest UV Index reading right now is Carrick, CA with a reading of 4.3.

Over the next 24 hours, the highest UV Index reading in Siskiyou County, CA is expected to be 8.8 in Carrick between 1:00 PM - 2:00 PM PDT tomorrow.

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Current UV Index in Cities in Siskiyou County, CA

• Carrick - 4.3
• Dorris - 3.8
• Dunsmuir - 4.2
• Edgewood - 4.1
• Etna - 4.2
• Fort Jones - 4.2
• Gazelle - 4.1
• Greenview - 4.2
• Grenada - 4
• Happy Camp - 3.9
• Hornbrook - 4
• Lake Shastina - 4.1
• Macdoel - 4
• McCloud - 4.2
• Montague - 4
• Mount Hebron - 4
• Mount Shasta - 4.2
• Tennant - 4.3
• Tulelake - 3.6
• Weed - 4.1
• Yreka - 4.1