I-15 Weather Conditions and Forecasts

2026-06-14 Roadnow

I-15 Monday 2026-06-15 weather conditions

• detailI-15 Montana: Increasing Clouds, 84°F
• detailI-15 Idaho: Sunny, 89°F
• detailI-15 Utah: Sunny, 95°F
• detailI-15 Arizona: Hot, 110°F
• detailI-15 Nevada: Hot, 110°F
• detailI-15 California: Clear, 96°F

I-15 7 day weather forecast