Siskiyou County, CA: Current UV Index and Hourly Forecast

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As of 1:22 PM PST on November 3, 2025, out of 21 cities in Siskiyou County, CA in our database, 16 cities (76%) have a UV Index reading of Moderate, while 5 cities (24%) have a UV Index reading of Low. The city with the highest UV Index reading right now is Mount Shasta, CA with a reading of 2.9.

Over the next 24 hours, the highest UV Index reading in Siskiyou County, CA is expected to be 2.9 in Mount Shasta between 1:00 PM - 2:00 PM PST today.

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Current UV Index in Cities in Siskiyou County, CA

• Carrick - 2.6
• Dorris - 2.4
• Dunsmuir - 2.9
• Edgewood - 2.6
• Etna - 2.6
• Fort Jones - 2.8
• Gazelle - 2.6
• Greenview - 2.6
• Grenada - 2.7
• Happy Camp - 1.7
• Hornbrook - 2.4
• Lake Shastina - 2.6
• Macdoel - 2.8
• McCloud - 2.9
• Montague - 2.7
• Mount Hebron - 2.8
• Mount Shasta - 2.9
• Tennant - 2.9
• Tulelake - 2.3
• Weed - 2.6
• Yreka - 2.3