Weather Forecasts, Road Conditions, and Weather Radar for I-15

Current & 7-day weather forecast, road conditions, and weather radar for all of US interstate I-15.
All times shown in your local timezone

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Major Junctions of I-15

In Montana:

  • I-15 South begins at the Sweetgrass-Coutts Border Crossing at the Canadian border near Sweet Grass, Montana.
  • I-15 has a major junction at I-315 in Great Falls, Montana.
  • I-15 has major junctions at I-90 and I-115 in Butte, Montana.

In Idaho:

  • I-15 has a major junction at I-86 in Chubbuck, Idaho.

In Utah:

  • I-15 has a major junction at I-84 in Riverdale, Utah.
  • I-15 has a major junction at I-215 in North Salt Lake, Utah.
  • I-15 has a major junction at I-80 in Salt Lake City, Utah (SLC).
  • I-15 has a major junction at I-215 in Murray, Utah.
  • I-15 has a major junction at I-70 near Cove Fort, Utah.

In Arizona:

  • I-15 has no major junctions in Arizona.

In Arizona:

  • I-15 has a major junction at I-215 in Enterprise, Nevada.
  • I-15 has a major junction at I-515 in Las Vegas, Nevada.

In California:

  • I-15 has a major junction at I-40 in Barstow, California.
  • I-15 has a major junction at I-215 in San Bernardino, California.
  • I-15 has a major junction at I-10 in Ontario, California.
  • I-15 has a major junction at I-215 in Murrieta, California.
  • I-15 has major junctions at I-5, I-8, and I-805 in San Diego, California, where I-15 North begins.

This map shows the current & 7-day weather forecast, road conditions, and weather radar for all of US interstate I-15.