I-15 Weather Conditions and Forecasts

2026-03-22 Roadnow

I-15 Friday Night 2026-03-27 weather conditions

• detailI-15 Montana: Partly Cloudy, 30°F
• detailI-15 Idaho: Mostly Cloudy, 42°F
• detailI-15 Utah: Mostly Cloudy, 52°F
• detailI-15 Arizona: Partly Cloudy, 65°F
• detailI-15 Nevada: Partly Cloudy, 66°F
• detailI-15 California: Partly Cloudy, 58°F

I-15 7 day weather forecast