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I-5 Interstate Road Conditions 511
Weather for road I-5
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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.
- Road system: Interstate Highway System
- Year of construction: 1970
- Length: 1,381 miles
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See live weather forecast for I‑5. Get real‑time I‑5 road and weather conditions displayed directly on the interactive map for your route through California, Oregon, and Washington.
The map shows live weather conditions along Interstate 5, updated frequently to help drivers plan safer trips. Forecasts are generated for the next 6 hours at key highway points and include temperature and conditions such as clear skies, rain, storms, snow, high wind, hail, and more.
California I-5 weather conditions
- California, CA is currently experiencing clear weather conditions with a temperature of 21.5°C (70.7°F)
- The humidity level is at 59%, and the wind is calm, blowing from the east at 1.3 kph (0.8 mph)
- Visibility is good at 16 km (9.9 miles)
- A heat advisory is in effect from June 13, 2026, at 2:43 AM until June 16, 2026, at 11:00 PM, indicating a need for caution due to elevated temperatures expected during this period
- There are no significant weather impacts reported that would affect outdoor activities at this time.
Oregon I-5 weather conditions
- Current weather conditions in Oregon, OR indicate a clear sky with a temperature of 6.9°C (44°F) and a humidity level of 54%
- The wind is blowing from the southeast at 0.1 kph (0 mph), which is almost calm
- The atmospheric pressure is measured at 1021 mb (30.15 inHg), and visibility is good at 16 km (9.9 miles)
- There are no active weather alerts at this time.
Washington I-5 weather conditions
- Current weather conditions in Washington, WA indicate a clear sky with a temperature of 4.7°C (40.5°F) and a dew point of -2.3°C (27.9°F)
- The humidity level is at 61%, and the atmospheric pressure is 1017 mb (30.06 inHg)
- Winds are coming from the west-southwest at 3 kph (2 mph)
- Visibility is good at 16 km (9.9 miles), making it a clear and pleasant morning
- There are no active weather alerts at this time.
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