I-15 Weather Conditions and Forecasts

2026-02-06 Roadnow

I-15 Sunday 2026-02-08 weather conditions

• detailI-15 Montana: Slight Chance Rain, 39°F
• detailI-15 Idaho: Mostly Sunny, 43°F
• detailI-15 Utah: Sunny, 47°F
• detailI-15 Arizona: Sunny, 69°F
• detailI-15 Nevada: Sunny, 70°F
• detailI-15 California: Sunny, 70°F

I-15 7 day weather forecast