Siskiyou County, CA: Current UV Index and Hourly Forecast

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As of 11:42 AM PDT on April 2, 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 Etna, CA with a reading of 4.4.

Over the next 24 hours, the highest UV Index reading in Siskiyou County, CA is expected to be 6.8 in Etna between 1:00 PM - 2:00 PM PDT today.

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Current UV Index in Cities in Siskiyou County, CA

• Carrick - 4.1
• Dorris - 4.2
• Dunsmuir - 3.9
• Edgewood - 3.9
• Etna - 4.4
• Fort Jones - 4
• Gazelle - 3.9
• Greenview - 4.4
• Grenada - 3.8
• Happy Camp - 3.7
• Hornbrook - 3.7
• Lake Shastina - 3.9
• Macdoel - 3.9
• McCloud - 3.9
• Montague - 3.8
• Mount Hebron - 3.9
• Mount Shasta - 3.9
• Tennant - 4.4
• Tulelake - 3.8
• Weed - 3.9
• Yreka - 4