I-15 Weather Conditions and Forecasts

2026-01-02 Roadnow

I-15 Overnight 2026-01-02 weather conditions

• detailI-15 Montana: Chance Rain, 43°F
• detailI-15 Idaho: Rain, 47°F
• detailI-15 Utah: Chance Rain then Mostly Sunny, 44°F
• detailI-15 Arizona: Chance Showers, 60°F
• detailI-15 Nevada: Mostly Cloudy, 59°F
• detailI-15 California: Partly Cloudy, 62°F

I-15 7 day weather forecast