I-15 Weather Conditions and Forecasts

2026-02-05 Roadnow

I-15 Sunday Night 2026-02-08 weather conditions

• detailI-15 Montana: Chance Rain, 43°F
• detailI-15 Idaho: Mostly Cloudy, 42°F
• detailI-15 Utah: Partly Cloudy, 44°F
• detailI-15 Arizona: Mostly Clear, 63°F
• detailI-15 Nevada: Mostly Clear, 64°F
• detailI-15 California: Mostly Clear, 69°F

I-15 7 day weather forecast