I-15 Weather Conditions and Forecasts

2026-02-26 Roadnow

I-15 Monday Night 2026-03-02 weather conditions

• detailI-15 Montana: Mostly Clear, 27°F
• detailI-15 Idaho: Mostly Sunny, 37°F
• detailI-15 Utah: Chance Rain, 46°F
• detailI-15 Arizona: Partly Cloudy, 59°F
• detailI-15 Nevada: Sunny, 56°F
• detailI-15 California: Mostly Clear, 55°F

I-15 7 day weather forecast