I-15 Weather Conditions and Forecasts

2026-02-26 Roadnow

I-15 Monday 2026-03-02 weather conditions

• detailI-15 Montana: Sunny, 31°F
• detailI-15 Idaho: Chance Rain, 33°F
• detailI-15 Utah: Chance Showers, 40°F
• detailI-15 Arizona: Partly Cloudy, 55°F
• detailI-15 Nevada: Sunny, 60°F
• detailI-15 California: Partly Cloudy, 57°F

I-15 7 day weather forecast