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Radar, DOT cameras and live pavement conditions on I-15, I-84 West and I-90 — plus closures, road work and city-by-city weather across Idaho.
Updated Oct 9, 2026 2:18 AM UTC · Mostly dry
Lowest 63°F near Coeur d'Alene, Idaho · Highest wind 7 mph near Idaho Falls, Idaho
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Idaho carries 545 miles of interstate: I-15, I-84 West and I-90. The high crossings are Lookout Pass at 4,711 ft, and they are where winter closes the road first. Idaho Falls, Pocatello, Boise and Twin Falls sit on these routes.
Weather data from Oct 9, 2026 2:18 AM UTC
Dry
21 current reports along the route, including 2 full closures. The 8 most serious are listed below. Always check with the responsible state DOT before setting off.
Road construction on I-15-BL Both Directions from Commercial St to Willow Ln. All lanes closed. 9/14/2026 7:00 AM MT to 1/8/2027 7:00 PM MT Mon, Tue, Wed, Thu, Fri, Sat, Sun: Active all day Width Restriction: 12ft Length Restriction: 50ft
Minor Road construction on ramp from SH-41 to I-90 Eastbound. All lanes closed. 10/2/2026 8:00 PM PT to 10/9/2026 6:00 PM PT Mon, Tue, Wed, Thu, Fri, Sat, Sun: Active all day
Major Bridge construction on I-90 Eastbound from MM (39) to MM (41). 1 Left lane closed. 3/2/2026 7:00 AM to 11/2/2026 6:00 PM Mon, Tue, Wed, Thu, Fri, Sat, Sun: Active all day Width Restriction: 12ft 6in Speed Restriction: 45mph Activities: Mandatory Speed Limit in Force.
Major Bridge construction on I-90 Westbound from MM (39) to MM (41). 1 Right lane closed. 3/2/2026 7:00 AM to 11/2/2026 6:00 PM Mon, Tue, Wed, Thu, Fri, Sat, Sun: Active all day Width Restriction: 12ft 6in Length Restriction: 110ft Speed Restriction: 45mph Activities: Mandatory Speed Limit in Force.
Road construction on US-91 Both Directions from Flandro Dr to Flandro Dr. 1 Lane Shift Left. 10/5/2026 8:00 PM MT to 10/26/2026 6:00 AM MT Mon, Tue, Wed, Thu, Fri, Sat, Sun: Active all day Width Restriction: 12ft Activities: Consider Alternative Route, Repairs in Progress, Use Caution. Expect Delays: Under 15 minutes
Major Road construction on US-30 Both Directions from Portneuf River to MM (365). 1 Right lane closed. 9/15/2026 7:00 AM MT to 10/9/2026 5:00 PM MT Mon, Tue, Wed, Thu, Fri, Sat, Sun: Active all day Width Restriction: 14ft
Long term road construction on I-15 Both Directions from Inkom to Portneuf River. 3/2/2026 7:00 PM to 10/31/2026 7:00 PM Mon, Tue, Wed, Thu, Fri, Sat, Sun: Active all day Width Restriction: 12ft
Road construction on SH-25 Both Directions from S Birch St to S Buchanan St. All Lanes Intermittent. 7/6/2026 7:00 AM to 7/1/2027 5:00 PM Mon, Tue, Wed, Thu, Fri, Sat, Sun: Active all day Width Restriction: 11ft Activities: Consider Alternative Route, Use Caution.
Each stretch has its own live conditions, closures and cameras for the Idaho miles only — the weather 500 miles away on the same interstate says nothing about this drive.
| Place | Snow a year | Snow days | Freezing nights | Freeze–thaw days | First freeze | Last freeze | Days over 90°F |
|---|---|---|---|---|---|---|---|
| Boise | 19.2" | 19.4 | 100.9 | 82.1 | Oct 15 | Apr 30 | 47.5 |
| Idaho Falls | 36.9" | 38.6 | 180.3 | 125.7 | Sep 19 | May 23 | 21.6 |
| Lewiston | 10.5" | 10.6 | 75.9 | 63.2 | Oct 23 | Apr 12 | 40.1 |
| Pocatello | 43.4" | 42.2 | 163.6 | 123.1 | Sep 19 | May 22 | 29.7 |
NOAA 1991–2020 Climate Normals, from 4 weather stations in Idaho. A dash is a figure that station does not report, not a zero.
Snowfall across Idaho is not one number: Lewiston averages 10.5" a year and Pocatello averages 43.4".
Every figure above is a town or a city. The summits are a different climate: Lookout Pass has its own page with the readings at the top and a six-day summit forecast.
What the road normally throws at you, month by month, from NOAA's 1991–2020 normals for Idaho's own stations. Each month names its dominant hazard and the place that measured it — this is what the month is usually like, not a forecast and not a restriction.
Summaries fetched Oct 8, 2026 12:02 PM UTC
Photo from — last answered 7 hours ago, so this is the last frame we have
Photo from — last answered 7 hours ago, so this is the last frame we have
Photo from — last answered 7 hours ago, so this is the last frame we have
Photo from — last answered 7 hours ago, so this is the last frame we have
Photo from — last answered 7 hours ago, so this is the last frame we have
Photo from — last answered 7 hours ago, so this is the last frame we have
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Weather Navigation carries the same radar and road-surface data on Apple CarPlay and Android Auto, with a weather-aware route planner, storm-cell tracking and radar that refreshes every two minutes over the US.