I-15 Weather Conditions and Forecasts

2026-01-03 Roadnow

I-15 Thursday 2026-01-08 weather conditions

• detailI-15 Montana: Slight Chance Snow, 28°F
• detailI-15 Idaho: Chance Snow, 32°F
• detailI-15 Utah: Chance Rain/Snow, 34°F
• detailI-15 Arizona: Chance Showers, 45°F
• detailI-15 Nevada: Chance Showers, 46°F
• detailI-15 California: Slight Chance Showers, 44°F

I-15 7 day weather forecast