Siskiyou County, CA: Current UV Index and Hourly Forecast

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As of 10:55 AM PDT on September 11, 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 Macdoel, CA with a reading of 2.3.

Over the next 24 hours, the highest UV Index reading in Siskiyou County, CA is expected to be 5.6 in Lake Shastina between 1:00 PM - 2:00 PM PDT today.

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Current UV Index in Cities in Siskiyou County, CA

• Carrick - 2.1
• Dorris - 2
• Dunsmuir - 2
• Edgewood - 1.8
• Etna - 1.4
• Fort Jones - 1.6
• Gazelle - 1.8
• Greenview - 1.4
• Grenada - 1.7
• Happy Camp - 1.3
• Hornbrook - 1.7
• Lake Shastina - 1.8
• Macdoel - 2.3
• McCloud - 2
• Montague - 1.7
• Mount Hebron - 2.3
• Mount Shasta - 2
• Tennant - 2.3
• Tulelake - 2
• Weed - 1.8
• Yreka - 1