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Siskiyou Summit Weather & Road Conditions
Siskiyou Summit Weather & Road Conditions
Elevation 4,310 ft · Updated Aug 23, 2026 10:52 PM UTC · Mostly dry
Lowest 72°F near Medford, Oregon · Highest wind 7 mph near Medford, Oregon
At the summit: Dry · 74°F · road surface est. 74°F · 7 mph wind
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Siskiyou Summit is the highest point on Interstate 5, at 4,310 feet in the Siskiyou Mountains just north of the California line. It is the crossing that decides winter driving between Oregon and California, and traction requirements on the grade are common from November onwards.
- Elevation: 4,310 ft
- Carries: I-5
- State: Oregon
- Road system: Interstate Highway System
Weather data from Aug 23, 2026 10:52 PM UTC
72°F
91°F
7 mph
1010-1013 hPa
See live weather and road conditions for Siskiyou Summit. Real-time surface conditions, radar, closures and DOT cameras on the interactive map for the climb and the summit, on I-5 in Oregon.
Forecasts are generated for the next 6 hours at points along the pass and include temperature and conditions such as clear skies, rain, storms, snow, high wind, hail, and more.
No full closures are reported on Siskiyou Summit as of Aug 23, 2026 10:52 PM UTC, and no lane closures or roadworks either. Always check with the responsible state DOT before setting off.
Siskiyou Summit Chain Control & Traction Requirements
Chain and traction requirements on Siskiyou Summit are set by the state highway authority, and they are imposed and lifted through the day as a storm moves through. This page does not carry them — check tripcheck.com ↗ before you set off.
What this page can tell you is the surface at the summit, from radar and surface analysis: currently dry, with the road surface estimated at 74°F. The road surface figure is an estimate derived from air temperature, not a measurement — bridges and overpasses run colder than the number shown.
Siskiyou Summit Traffic Cameras
updating…I-5 California at Hilt
8 hours ago
I-5 California at North Hilt
8 hours ago
I-5 at Crowson Rd - Siskiyou Chain Up Area
8 hours ago
I-5 at Exit 6 Near Siskiyou Summit
8 hours ago
I-5 at Siskiyou
8 hours ago
I-5 at Siskiyou
8 hours ago
Siskiyou Summit Road Weather FAQ
- Is Siskiyou Summit open right now?
- No full closures are reported on Siskiyou Summit. No lane closures or roadworks are reported either.
- What are Siskiyou Summit road conditions today?
- The map on this page colours the route along Siskiyou Summit by what is on the carriageway right now — dry, wet, slush, snow or ice — from radar and surface data, last updated Aug 23, 2026 10:52 PM UTC. Right now temperatures run from 72°F to 91°F and the strongest wind is 7 mph.
- Do I need chains on Siskiyou Summit today?
- Chain and traction requirements are set by the state highway authority and change through the day, so check them directly before you set off at tripcheck.com — this page does not carry them. What this page can tell you is that the surface at the summit is dry, and the road surface is estimated at 74°F.
- Are there live traffic cameras on Siskiyou Summit?
- Yes. This page shows 6 live views on Siskiyou Summit from the state transportation departments' own camera feeds, further down the page, refreshed each time you load it.
- How often are Siskiyou Summit road conditions updated?
- The road surface and weather layers are rebuilt whenever this page is opened with data more than ten minutes old, and refreshed on a schedule in between, so nothing here is more than about two hours old even on a road nobody has looked at. Closures and road blocks are re-imported from the state 511 feeds every fifteen minutes, and the written state-by-state summaries are refreshed daily. Every section on this page carries the time its data was fetched.
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