I-15 Weather Conditions and Forecasts

2026-06-14 Roadnow

I-15 Today 2026-06-14 weather conditions

• detailI-15 Montana: Sunny, 72°F
• detailI-15 Idaho: Sunny, 79°F
• detailI-15 Utah: Sunny, 92°F
• detailI-15 Arizona: Hot, 107°F
• detailI-15 Nevada: Hot, 108°F
• detailI-15 California: Mostly Clear, 93°F

I-15 7 day weather forecast