I-15 Weather Conditions and Forecasts

2026-03-05 Roadnow

I-15 Overnight 2026-03-05 weather conditions

• detailI-15 Montana: Rain/Snow, 41°F
• detailI-15 Idaho: Chance Rain/Snow, 41°F
• detailI-15 Utah: Rain/Snow, 44°F
• detailI-15 Arizona: Mostly Clear, 65°F
• detailI-15 Nevada: Patchy Blowing Dust and Breezy, 64°F
• detailI-15 California: Mostly Clear, 68°F

I-15 7 day weather forecast