Eisenhower-Johnson Tunnel

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

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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 45°F · SW 12 to 15 mph
    Mostly sunny. High near 45, with temperatures falling to around 41 in the afternoon. Southwest wind 12 to 15 mph, with gusts as high as 24 mph.
  • Tonight 30°F · SSW 6 to 10 mph
    Mostly clear, with a low around 30. South southwest wind 6 to 10 mph, with gusts as high as 16 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

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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.