I-15 Weather Conditions and Forecasts

2026-04-12 Roadnow

I-15 current weather conditions

• detailI-15 Montana: NA, 39°F
• detailI-15 Idaho: Overcast, 46°F
• detailI-15 Utah: Clear, 63°F
• detailI-15 Arizona: Partly Cloudy, 72°F
• detailI-15 Nevada: Partly Cloudy, 66°F
• detailI-15 California: Overcast, 57°F

I-15 7 day weather forecast