I-15 Weather Conditions and Forecasts

2026-02-26 Roadnow

I-15 current weather conditions

• detailI-15 Montana: Clear, 28°F
• detailI-15 Idaho: Mostly Cloudy, 34°F
• detailI-15 Utah: Partly Cloudy, 47°F
• detailI-15 Arizona: Clear, 48°F
• detailI-15 Nevada: Clear, 60°F
• detailI-15 California: Clear, 58°F

I-15 7 day weather forecast