I-15 Weather Conditions and Forecasts

2026-07-24 Roadnow

I-15 Sunday 2026-07-26 weather conditions

• detailI-15 Montana: Hot, 94°F
• detailI-15 Idaho: Hot, 96°F
• detailI-15 Utah: Hot, 103°F
• detailI-15 Arizona: Hot, 109°F
• detailI-15 Nevada: Hot, 110°F
• detailI-15 California: Sunny, 101°F

I-15 7 day weather forecast