I-15 Weather Conditions and Forecasts

2025-04-19 Roadnow

I-15 This Afternoon 2025-04-19 weather conditions

• detailI-15 Montana: Slight Chance Showers, 61°F
• detailI-15 Idaho: Sunny, 60°F
• detailI-15 Utah: Sunny, 56°F
• detailI-15 Arizona: Sunny, 74°F
• detailI-15 Nevada: Sunny, 75°F
• detailI-15 California: Sunny, 78°F

I-15 7 day weather forecast