Parleys Summit

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-80 · Utah

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 3:28 PM MDT.

Road and chain status

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

NWS forecast

  • This Afternoon 46°F · SW 10 mph
    A slight chance of rain after 3pm. Mostly sunny. High near 46, with temperatures falling to around 43 in the afternoon. Southwest wind around 10 mph. Chance of precipitation is 20%.
  • Tonight 31°F · WSW 3 mph
    Partly cloudy. Low around 31, with temperatures rising to around 34 overnight. West southwest wind around 3 mph.

Standing rule (not live data): Utah traction rule (Utah Admin. Code R920-6): when UDOT or police put traction requirements in effect, vehicles over 12,000 lb GVWR need traction devices (chains, cables, socks or studs) on all drive tires, one tire in each dual set. UDOT says you may have to comply up to 24 hours before a storm.

  • Source: NWS · checked 3:28 PM MDT
  • Source: NWS forecast · updated 12:31 PM MDT

Official pages: UDOT Traffic (official) · UDOT traction and chain rules · 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.