I-15 Weather Conditions and Forecasts

2025-05-13 Roadnow

I-15 Saturday Night 2025-05-17 weather conditions

• detailI-15 Montana: Showers Likely, 43°F
• detailI-15 Idaho: Showers Likely, 40°F
• detailI-15 Utah: Showers Likely, 43°F
• detailI-15 Arizona: Chance Showers and Breezy, 59°F
• detailI-15 Nevada: Slight Chance Showers and Breezy, 61°F
• detailI-15 California: Cloudy, 52°F

I-15 7 day weather forecast