I-15 Weather Conditions and Forecasts

2025-04-19 Roadnow

I-15 Monday 2025-04-21 weather conditions

• detailI-15 Montana: Snow Showers, 41°F
• detailI-15 Idaho: Slight Chance Snow Showers then Sunny and Breezy, 58°F
• detailI-15 Utah: Chance Showers, 73°F
• detailI-15 Arizona: Sunny, 88°F
• detailI-15 Nevada: Sunny, 89°F
• detailI-15 California: Sunny, 76°F

I-15 7 day weather forecast