I-70 traffic is quite predictable unless affected by weather or accidents. Plan to avoid peak travel times, and enjoy a delay-free trip along I-70.  Our weekend travel forecast is updated every Thursday afternoon.

AUGUST 23 - 25, 2019

Sunny and dry weekend expected through the high country! According to our historical traffic data, Summer congestion begins to taper off about now, and delays shouldn't be as severe as most, earlier Summer weekends. That being said, the clear weather could send an unexpected influx of travelers onto I-70. Please allow for extra travel time, take advantage of our Peak Time Deals, and check CoTrip.org to learn more about what is happening on the road before you travel!

Friday WB – Heavy traffic volume will begin building around 12:30pm with delays likely to reach 30 minutes through 8pm. Peak travel times will last from 2pm through 6pm, where delays may reach 45 minutes or more. 

Saturday WB – Moderate traffic with delays around 15 to 30 minutes or more lasting from 10am through 4pm. Traffic may be heaviest traffic from Noon through 2pm with delays reaching 45 minutes. This weekend should see dryer and warmer weather, so traffic may be slightly heavier than usual.

Saturday EB – Moderate traffic and delays of 15 to 30 minutes are possible through the day.

Sunday WB – Moderate traffic through the day, but barring accidents, delays are expected to be 15 minutes or less.

Sunday EB – Heavy traffic from 10am through 5pm with delays hovering around 30 minutes. Peak travel times are Noon through 4pm, with travel times expected to reach 45 minutes to an hour.

*The GoI70.com Travel Forecast is based on historical data, along with an estimation of how weather, construction, public events and other factors might impact travel.



  • Avoid the Peak Travel Times.  If heading eastbound on Saturday or Sunday, plan to leave the mountains after 7:00 p.m. Check the weekend and holiday Travel Forecast.
  • ​​​Check the road and traffic conditions before you travel. 
  • Check out the Peak Time Deals local businesses offer to help you avoid peak travel times.
  • Spend a Sunday night in the mountains and head to work or school early Monday morning.
  • Prepare for I-70 mountain driving conditions.  Understand the Traction & Chain Laws.
  • Create or join a carpool. 
  • Consider taking a bus, train, van or rideshare  to the mountains and leave the driving to someone else. 


Weather - In the summer, weather plays a large factor in traveler behavior. If rain showers move in early in the day, expect drivers to head back to the Front Range early as well.

Holiday Weekends - when a national holiday falls on a Monday, you can count on Monday afternoon eastbound traffic to mimic a typical Sunday pattern, but with potentially more volume. On the flip side, the Sunday of holiday weekends tends to have slightly less congestion than usual.

Safety Metering - Safety metering eastbound at the Eisenhower Tunnel goes into effect during periods of particularly high traffic volume. This process is in place to ensure traffic flows safely and freely through the tunnel. Expect eastbound delays when metering is in effect.

Mountain Express Lane - This eastbound express lane provides a more reliable travel time to those willing to pay the toll.  Get the ExpressToll pass to pay the posted toll rate.  Those without a pass will be billed the posted rate plus a service charge.  More info at ExpressToll.com


(June through September. Based on historical data.)

I-70 summer traffic is fairly predictable and very responsive to weather conditions. With just a bit of planning travelers can enjoy More Mountains and Less Traffic. The following is the typical summer weekend traffic pattern. 

Friday Westbound - There are occasionally moderate delays heading westbound on Friday evenings. Traffic may build between Noon and 3pm, peak around 4pm, and end between 6pm and 7pm. Delays during this timeframe might mean an additional 20-30 minutes of travel time on a trip from C470 to Frisco.

Saturday Westbound - On Saturdays, travelers might experience congestion from 10am through 2pm. Get an earlier start to avoid traffic. 

Saturday Eastbound - Minimal delays expected during Saturday eastbound travel, but slower moving traffic is possible from mid-afternoon through early evening.

Sunday Westbound - Delays only likely during long-weekends, holidays, and events.

Sunday Eastbound - Traffic begins building at 11am and lasts through 8pm. There is potential for considerable delays through the entire period, but the worst usually occurs between 3pm and 6pm. To avoid traffic, stay in the mountains through dinner, or spend Sunday night and head back early Monday morning. Check out our Peak Time Deals for special offers and incentives!



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