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I-5 Interstate Road Conditions
I-5 Road Conditions & Weather
Radar, DOT cameras and live pavement conditions along I-5 from California to Washington — plus closures, road work and the drive broken down into 3 state-by-state stretches.
Updated Sep 10, 2026 11:53 PM UTC · 3 states · Mostly dry
Lowest 69°F near Tacoma, Washington · Highest wind 17 mph near Sacramento, California
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Interstate 5 (I-5) runs from the Mexican border at San Ysidro in San Diego, California, to the Canadian border at Blaine, Washington, forming the main north–south backbone of the U.S. West Coast. It passes through major cities such as San Diego, Los Angeles, Sacramento, Portland, and Seattle. The two climbs that decide a winter drive on Route 5 are the Grapevine at 4,144 ft and Siskiyou Summit at 4,310 ft.
- Road system: Interstate Highway System
- Year of construction: 1970
- Length: 1,381 miles
Weather data from Sep 10, 2026 11:53 PM UTC
69°F
105°F
17 mph
29.71-30.04 inHg
Current I-5 Conditions by State
California I-5 road conditions
Dry
- San Diego 89°F · 8 mph wind · Dry
- Los Angeles 97°F · 8 mph wind · Dry
- Sacramento 104°F · 11 mph wind · Dry
Oregon I-5 road conditions
Dry
- Portland 76°F · 7 mph wind · Dry
- Medford 94°F · 15 mph wind · Dry
- Salem 82°F · 10 mph wind · Dry
Washington I-5 road conditions
Dry
- Vancouver 76°F · 7 mph wind · Dry
- Seattle 70°F · 3 mph wind · Dry
- Tacoma 71°F · 7 mph wind · Dry
I-5 runs 1,381 miles south to north from San Diego, California to Blaine, Washington, crossing 3 states. Its longest stretch is 797 miles across California; its shortest is 276 miles in Washington.
| State | Miles | Share | Cities and mile markers |
|---|---|---|---|
| California | 797 | 58% | San Diego 16 · Los Angeles 134 · Sacramento 519 |
| Oregon | 308 | 22% | Medford 29 · Eugene 193 · Salem 255 · Portland 301 |
| Washington | 276 | 20% | Vancouver 2 · Tacoma 134 · Seattle 166 |
It climbs The Grapevine at 4,144 ft and Siskiyou Summit at 4,310 ft, where the weather at the summit is not the weather on the approach.
Mile markers count from each state's southern line and start again at the next one, which is how most states number their exits as well. They are measured along the same road geometry these pages draw, so they land within a mile or two of the posted markers. A toll road that runs its own continuous numbering is the exception — on the New York Thruway the posts continue from New York City — and there the figure is how far into the state the place is rather than the number on the sign. Distances are measured state by state, never across a gap.
18 current reports along the route, including 2 full closures. The 2 most serious are listed below. Always check with the responsible state DOT before setting off.
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Road closed
I-5 closed
Mainline closure. Work: Spill-Accident Clean up. Lanes closed: All. Near Castaic, Los Angeles County.
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Lanes blocked
I-5 off ramp closure
Off Ramp closure. Work: Striping Operation. Lanes closed: All. Near Dunsmuir, Shasta County.
California I-5 weather conditions
Summaries fetched Sep 10, 2026 5:00 AM PDT
Los Angeles, CA weather
- In Los Angeles, CA, the current weather is characterized by clear skies and a temperature of 77°F
- The humidity level is at 63%, and the wind is light, blowing from the southeast at 1 mph
- Visibility is excellent at 9.9 miles
- An extreme heat warning is in effect from 8:09 AM on September 9, 2026, until 8:00 PM on September 10, 2026, indicating significant risks associated with high temperatures
- With the current conditions, it is important to take precautions against the heat, especially during outdoor activities.
Sacramento, CA weather
- Current weather conditions in Sacramento, CA indicate a clear sky with a temperature of 73°F
- The humidity level is at 44%, and the dew point is 49.8°F
- Winds are light, blowing from the southeast at 1.7 mph
- Visibility is good, reaching up to 9.9 miles
- A heat advisory is currently in effect, which began on September 9 at 10:37 AM and will remain active until September 10 at 10:00 PM
- This advisory suggests that outdoor activities may be impacted due to elevated temperatures.
Oregon I-5 weather conditions
Summaries fetched Sep 10, 2026 12:06 PM UTC
Portland, OR weather
- Current weather conditions in Portland, OR indicate a temperature of 59°F with a relative humidity of 84%
- The wind is calm, blowing from the northwest at 1 to 2 mph
- The atmospheric pressure is 30.06 inHg, and visibility is good at 9.9 miles
- The weather is clear with no precipitation or snowfall reported at this time.
Medford, OR weather
- The current weather in Medford, OR, shows clear conditions with a temperature of 59°F and a humidity level of 69%
- The wind is light, blowing from the northwest at 0.6 mph
- The visibility is good at 9.9 miles
- Atmospheric pressure is measured at 30.06 inHg
- There are no active weather alerts at this time, and no precipitation is occurring.
Washington I-5 weather conditions
Summaries fetched Sep 10, 2026 5:07 AM PDT
Seattle, WA weather
- Current weather conditions in Seattle, WA indicate a temperature of 59.7°F with a relative humidity of 84%
- The wind is calm, blowing from the east at 2 to 4 mph
- The atmospheric pressure is measured at 30.06 inHg
- Visibility is good at 16 km (9.9 mi), and the weather is clear
- There are no significant weather alerts at this time.
I-5 Traffic Cameras
updating…I-5 Washington - Vancouver at 134th
2 hours ago
I-5 Washington - Vancouver at 29th
2 hours ago
I-5 at Lake Creek - South of ORE228
2 hours ago
I-5 at North Albany
2 hours ago
(C 129) I-5 : Just North Of I-8_B, San Diego
2 hours ago
(C 165) I-5 : Just North Of I-8 _ T, San Diego
2 hours ago
I-5 Road Weather FAQ
- Is I-5 closed right now?
- Yes — 2 full closures are reported on I-5 as of Sep 11, 2026 12:47 AM UTC. 16 lane closures, roadworks or restrictions are in force. They are listed under closures and road blocks on this page.
- What are I-5 road conditions today?
- The map on this page colors the route along I-5 by what is on the pavement right now — dry, wet, slush, snow or ice — from radar and surface data, last updated Sep 10, 2026 11:53 PM UTC. Right now temperatures run from 69°F to 105°F and the strongest wind is 17 mph.
- How long is Interstate 5, and which states does it cross?
- I-5 runs 1,381 miles south to north, from San Diego, California to Blaine, Washington, through 3 states: California, Oregon and Washington. The longest stretch is 797 miles across California. Mile markers restart at each state line, so San Diego is around mile 16 in California.
- Are there mountain passes on I-5?
- Yes — 2 on this site: The Grapevine at 4,144 ft and Siskiyou Summit at 4,310 ft. Each has its own summit page.
- Are there live traffic cameras on I-5?
- Yes. This page shows 6 live views on I-5 from the state transportation departments' own camera feeds, further down the page, refreshed each time you load it.
- How often are I-5 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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