Winter Weather Causes Traffic Hazards on I-90 and I-15 in Montana (2026)

Traffic hazards reported on I-90 and I-15, creating significant travel challenges amid winter conditions. But here’s where it gets controversial: what if winter weather isn’t the only reason for the delays—and could driver behavior be a bigger factor than we think? And this is the part most people miss: even with warnings and chain requirements, accidents still happen, and the questions about road preparedness and timely information remain hot topics for debate.

The Montana Department of Transportation (MDT) is alerting drivers to multiple crashes and hazardous conditions along I-90 and I-15 as winter weather continues to impact travel. The agency confirmed a collision between Cardwell and Three Forks that has blocked the westbound lanes. Additional incidents are contributing to delays on Bozeman Pass, with officials describing current driving conditions on that pass as severe.

Chain requirements are now in effect on both Boulder Hill on I-15 and Bozeman Pass. Drivers should plan for slow speeds, allow extra travel time, and use chains or traction tires as required. If you’re behind the wheel today, consider checking MDT’s latest updates before you depart, and prepare for possible detours or alternate routes to reach your destination safely.

What do you think? Do winter travel advisories adequately reflect real-time conditions, or should there be a different approach to issuing guidance during severe weather? Share your experiences and opinions in the comments.

Winter Weather Causes Traffic Hazards on I-90 and I-15 in Montana (2026)

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