I-15 weather today, stretch by stretch

Interstate 15 · San Diego to Great Falls · 1,339 mi

UPDATED Tue, 17:12 PDT · EVERY HOUR

Fog between Idaho Falls and Butte.

HAZARDConditions may make this stretch difficult or dangerous.

WHERE: Idaho Falls → Butte
WORST: Around Wed, 06:00 MDT
EASES: By Wed, 18:00 MDT · calm at worst
ELSEWHERE: 10 of 12 stretches calm or mild
CLOSED?: We don’t track closures or chain laws. Check Idaho 511 ↗ or Montana 511 ↗.

YOUR PART OF I-15

FROMTO

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TIME IT TO YOUR DRIVE IN THE APP →This page shows the road at one moment. The app forecasts each stretch for when you reach it.

NOW

RADAR LIVE · Roads © OpenStreetMap contributors

12 STRETCHES · 1,339 mi

Stretch by stretch, now

NOSTRETCHCONDITIONSNEXT 24 HTEMP

01CA · 107 mi · Tue, 17:00 PDTClearCALM66°F

02CA · 70 mi · Tue, 17:00 PDTClearCALM59°F

03CA · NV · 157 mi · Tue, 17:00 PDTClearCALM66°F

04NV · UT · 119 mi · Tue, 17:00 PDTMostly cloudyMILD59°F

05UT · 127 mi · Tue, 18:00 MDTRainMILD54°F

06UT · 176 mi · Tue, 18:00 MDTMostly cloudyMILD46°F

07UT · 38 mi · Tue, 18:00 MDTRainMILD50°F

08UT · ID · 129 mi · Tue, 18:00 MDTRainMILD50°F

09ID · 52 mi · Tue, 18:00 MDTMostly cloudyMILD45°F

10ID · MT · 205 mi · Tue, 18:00 MDTPartly cloudyCALM48°F

11MT · 68 mi · Tue, 18:00 MDTFairCALM37°F

12MT · 91 mi · Tue, 18:00 MDTClearCALM43°F

THE APP · FREE

Save I-15, and the drives you take on it.

This page shows the whole road at one moment. In the app, every stretch is forecast for the time you’ll actually be on it, and your drives are saved for next time.

Every stretch forecast for the moment you reach it
Your drives saved, ready for the next trip
A spoken briefing before you leave

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BEFORE YOU GO

Closures, chain laws and road conditions

ROAD CONDITIONS AND CLOSURES

OFFICIAL WARNINGS · NATIONAL WEATHER SERVICE

The National Weather Service has no warnings in effect on I-15 right now. Checked Tue, 17:54 PDT. weather.gov ↗

Warnings come from the National Weather Service, in its own words. This page is our forecast, not an official warning. Source: NOAA National Weather Service

QUESTIONS

Is I-15 closed right now?

We don’t track closures or chain controls. Check Idaho 511 or Montana 511 before you leave; every road-conditions service along I-15 is listed above.

How often is this page updated?

Every hour, from the latest forecast. The time at the top of the page says when it was last updated.

Is this an official weather warning?

No. This is our forecast of what to expect along the road. Official warnings come from the National Weather Service; those in effect on I-15 are listed above, each with a link to the warning itself.

How is this different from the app?

This page shows the whole highway at one moment. Windshield Weather follows your own drive: every stretch is forecast for the time you reach it.

NEARBY HIGHWAYS

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