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Summit weather at 4,310 feet, the highest point on Interstate 5 anywhere in the country. Elevation 4,310 feet. Forecast by the National Weather Service.

Last updated at: NOV 4, 2026, 8:28 PM PST · ODOT
Weather in Siskiyou Summit is only half the picture. The pass status above is live from ODOT. See full pass conditions.
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LIVEPartly Cloudy. Wind ENE 5 mph. Chance of precipitation 1%.
Mostly Sunny. Wind SE 2 to 6 mph. Chance of precipitation 0%.
Partly Cloudy. Wind SSW 3 to 7 mph. Chance of precipitation 0%.
Partly Sunny. Wind S 6 mph. Chance of precipitation 0%.
Mostly Clear. Wind E 3 to 7 mph. Chance of precipitation 0%.
Sunny. Wind SSE 5 to 9 mph. Chance of precipitation 0%.
Partly Cloudy. Wind SSE 2 to 7 mph. Chance of precipitation 5%.