Vail Pass

Weather alerts from the National Weather Service and chain controls from state transportation departments, with the time of every update. Worst conditions first.

Not official. Check the official 511 before you drive.

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I-70 · Colorado

No NWS alerts · Road/chains: check 511

Not official. Check the official 511 before you drive.

NWS alerts

No NWS alerts reported for this pass at 3:29 PM MDT.

Road and chain status

We only show weather alerts for this pass for now. Road and chain status: COtrip (official).

NWS forecast

  • This Afternoon 51°F · SW 10 to 14 mph
    Mostly sunny. High near 51, with temperatures falling to around 47 in the afternoon. Southwest wind 10 to 14 mph, with gusts as high as 22 mph.
  • Tonight 27°F · SSW 5 to 8 mph
    Mostly clear, with a low around 27. South southwest wind 5 to 8 mph.

Standing rule (not live data): Colorado: from September 1 to May 31, commercial vehicles on I-70 between Dotsero (MP 133) and Morrison (MP 259) must carry enough chains, and must chain up when the Commercial Vehicle Chain Law is in effect.

  • Source: NWS · checked 3:29 PM MDT
  • Source: NWS forecast · updated 12:46 PM MDT

Official pages: COtrip (official) · CDOT Traction Law and Chain Law · NWS forecast office

Questions about a pass? The forum has Road Desk guides (written by our AI assistant, with sources). Forum

Weather: National Weather Service (weather.gov), public data. Road data: each state DOT. TTH is not affiliated with these agencies, and they do not endorse this page. This page is refreshed every few minutes.