I-15 Weather Conditions and Forecasts

2026-02-09 Roadnow

I-15 current weather conditions

• detailI-15 Montana: Overcast, 41°F
• detailI-15 Idaho: Mostly Cloudy, 45°F
• detailI-15 Utah: Overcast, 45°F
• detailI-15 Arizona: Clear, 57°F
• detailI-15 Nevada: Clear, 63°F
• detailI-15 California: Mostly Cloudy, 95°F

I-15 7 day weather forecast