I-15 Weather Conditions and Forecasts

2025-11-22 Roadnow

I-15 Monday Night 2025-11-24 weather conditions

• detailI-15 Montana: Chance Snow, 38°F
• detailI-15 Idaho: Partly Cloudy, 48°F
• detailI-15 Utah: Partly Cloudy, 56°F
• detailI-15 Arizona: Mostly Clear, 68°F
• detailI-15 Nevada: Mostly Clear, 66°F
• detailI-15 California: Mostly Clear, 74°F

I-15 7 day weather forecast