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 morning and is based on past years traffic history, weather modeling, and CDOT advisories. Unless otherwise noted, this forecast encompasses Golden through Vail.
Weekend Travel Forecast: September 25th - September 27th
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Leaf peeping season is in full swing this weekend throughout the high country and will carry through the next several weekends. Expect significant traffic congestion.
Weather is cooler and dry throughout the weekend.
To avoid the peak travel times, check out the weekend travel forecast below!
Friday WB – Congestion will begin to build at 9:00am and subside by 5:30 pm. Expect peak delays of 45- 60 minutes Friday from 11:00am – 4:00pm
Friday EB – No delays or traffic congestion expected.
Saturday WB – Traffic will begin building by 9:00 am less by 3:00 pm. Expect delays of up to 50 minutes between 10:00 am and 2:00 pm
Saturday EB – No delays are expected.
Sunday WB – Minor delays between 10:00am – 2:00pm of 10 minutes or less.
Sunday EB – Traffic will begin to build at 10:00 am and largely subside by 7:00pm One of the most significant delays of the year can be expected with peak delays of an hour and a half between 1:00pm and 5:00pm
*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
Update:
The 2025-2026 winter was an historically low snow season for I-70. The snowpack trended well below normal from December through April due to inconsistent storms and very warm temperatures. As we look ahead to the 2026-2027 winter season, it's important to remember that any winter outlook will contain an inherent degree of uncertainty. However, there are a few clues...
TIPS FOR I-70 MOUNTAIN 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.
- Spend a Sunday night in the mountains and head to work or school early Monday morning.
- Prepare for I-70 mountain driving conditions. Know the Colorado Traction Law.
- Create or join a carpool with the TreadShare App.
- Consider taking a bus, train, van to the mountains and leave the driving to someone else.
IMPORTANT INFO TO KNOW
With just a bit of planning, travelers can enjoy More Mountains, Less Traffic. The heaviest volumes on the I-70 mountain corridor occur around the holidays and on weekends in January and February, but plan for weekend traffic during the entire ski season. Check the detailed weekend Travel Forecast at the top of this page, posted each Thursday. Below is additional information to know prior to your travels:
Weather, Road Conditions & Accidents are impossible to predict and can escalate the level and duration of delays dramatically. Check CDOT’s CoTrip.org before you travel.
Colorado’s Traction Law is in effect Sept. 1-May 31, regardless of current weather conditions. Learn if your tires meet the Traction Law specifications here.
The Mountain Express Lanes are open on the weekends and holidays to provide a faster and more reliable travel time between Denver and the mountains. Get the Express Toll pass to pay the posted toll rate. Those without a pass will be billed the posted rate plus a service charge. Order the pass at ExpressToll.com.
Holiday Weekends – When a national holiday falls on a Monday, you can count on Monday afternoon eastbound traffic similar to a typical Sunday pattern, but with higher volume.
Metering – Traffic metering goes into effect during very high-volume times at the Eisenhower Johnson Tunnel on the eastbound approach. Metering controls the flow of traffic eastbound towards the Eisenhower Tunnel so traffic does not back up in the tunnel, causing potential safety issues.
