I-15 Weather Conditions and Forecasts

2025-12-29 Roadnow

I-15 current weather conditions

• detailI-15 Montana: Partly Cloudy, 18°F
• detailI-15 Idaho: Clear, 18°F
• detailI-15 Utah: Clear, 27°F
• detailI-15 Arizona: Clear, 37°F
• detailI-15 Nevada: Clear, 47°F
• detailI-15 California: Clear, 46°F

I-15 7 day weather forecast