I15 Current Weather Conditions with Radar. See 12 hour weather, wind, and temperature forecast on the I15 corridor. Check conditions hour by hour with the time slider, switch between weather, temperature and wind views, and watch live radar for the route.
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Along I15, expect generally clear skies with mild to warm temperatures across Montana and Idaho. Utah will see warm conditions with some gusty winds, especially in the northern and central parts. Arizona and Nevada sections will experience hot temperatures with heat indices reaching above 100°F. California portions will also be warm with occasional gusts but no severe weather. Overall, dry and clear conditions dominate the route with no precipitation or ice expected.
