Post Falls, ID → Seattle, WA
251 mi · 5h 1m (driving)
Current Risk
Medium Risk
Fog expected
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Post Falls
38°
Lincoln County
44°
Chelan County
33°
Seattle
53°
Trip Briefing
3 segments · 251 mi · 5h 1m
Weather
⛅ Partly cloudy
44°F, wind 15 mph
Rest Stops
9
Restrooms, Truck svc, water
Cameras
5 live
Clear driving conditions expected
Rest stops in this segment:
- ● Huetter Rest Area, I-90 Eastbound 🚻
- ● Flying J Travel Center
- ● Love's Travel Stop 🚻
Weather May Slow Traffic
Active weather advisory — expect slower travel · 1 construction zone on route
1 Construction Zone on Route
Roadwork on SR 27 at milepost 87.46 between Mirabeau Pkwy and Pinecroft, near Trent Elementary, from October 12, 2026, until November 25, 2026. Watch for new traffic revisions; motorists are now using the new roundabout.
Traffic Cameras
See recent road conditions along your route
Images are snapshots updated periodically by state DOTs. Timestamps shown in images indicate when each photo was captured.
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Selected Route
Via I-90 West → US-395
Cameras shown are along this computed route
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I-90 at MP 299.4: Idaho Rd
WA ·
I-90 at MP 298.2: Starr Rd
WA ·
I-90 at MP 296.8: Harvard Rd
WA ·
I-90 at MP 281.3: Division #1
WA ·
I-90 at MP 220: US 395 Interchange @ Ritzville (1)
WA · WB
I-90 at MP 189: Warden Exit
WA · WB
I-90 at MP 144: Gorge Concert Exit
WA · WB
I-90 at MP 125.8: Ryegrass Summit
WA ·
I-90 at MP 101: Thorp
WA ·
I-90 at MP 76.48: Ensign Ranch
WA ·
I-90 at MP 51.3: Franklin Falls
WA ·
I-90 at MP 25.68: SR 18 Interchange
WA ·
Live traffic on this route
Cameras, crashes and closures right now on the highways this drive uses.
Rest Stops Along Your Route
24 stops available
Swipe to see moreShowing 1-2 of 24
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⚡ Recent Weather Events on This Route
Premium users received alerts for these conditions:
- 🌫️Nov 8: Dense fog warning for morning departures - visibility below 1/4 mile
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Driving from Post Falls, ID to Seattle, WA covers 251 miles in roughly 5h 1m of drive time, crossing state lines. We track 12 live traffic cameras, 24 rest areas and 1 active weather alert along this corridor so you can plan around them. Most drivers do this trip in one day; weather along the route matters more than the forecast at either endpoint, since you'll cross several climate zones.
7-Day Driving Outlook
Today
Nov 13
58° / 37°
No precip
Tomorrow
Nov 14
52° / 41°
No precip
Sun
Nov 15
47° / 36°
No precip
Mon
Nov 16
44° / 40°
No precip
Tue
Nov 17
43° / 32°
No precip
Wed
Nov 18
38° / 31°
No precip
Thu
Nov 19
38° / 33°
No precip
🗓️ Weekend Outlook
Saturday
Good to Go🌦️ Slight rain showers at origin, 🌦️ Moderate rain showers at destination
Sunday
Good to Go🌧️ Moderate rain at origin, 🌦️ Moderate rain showers at destination
Plan This Route
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Current Conditions
Post Falls, ID
38°F
Wind: 4 mph
Seattle, WA
53°F
Wind: 14 mph
Weather data updated in real-time
Driving from Post Falls, ID to Seattle, WA
The 251-mile drive from Post Falls, Idaho to Seattle, Washington takes approximately 5h 1m under normal conditions. Weather along this route can vary significantly, especially through mountainous terrain where elevation changes can bring sudden weather shifts. Route Outlook helps you find the safest time to travel by showing you weather conditions at every point along your route, timed to when you'll actually be there.
This moderate route crosses state lines from Idaho into Washington, connecting Post Falls and Seattle. A drive of 251 miles means you'll pass through multiple weather zones. Conditions at your starting point may bear little resemblance to what you'll encounter halfway through the trip.
Common Weather Hazards on This Route
- Winter storms and heavy snowfall (November through April)
- Black ice on mountain passes and bridges
- Dense fog, especially during early morning hours
Seasonal Driving Considerations
Mountain passes along this corridor can be treacherous from October through May, with chain requirements, road closures, and whiteout conditions at higher elevations. Summer brings its own challenges — afternoon thunderstorms are common above 7,000 feet, and construction season narrows lanes on key highways. Always check pass conditions before departing, and carry emergency supplies during the colder months.
Best Time to Drive Post Falls to Seattle
For medium-distance drives like this 251-mile route, consider starting in the early morning to arrive before afternoon storms develop. Check the 7-day forecast above to find a day with favorable conditions along the entire route.
Driving Strategy
A 251-mile drive from Post Falls to Seattle takes a significant part of the day. Plan at least one fuel and rest stop along the way. If your route crosses elevation changes or state lines, expect weather conditions to shift mid-trip. Monitor the segment-by-segment forecast rather than just checking destination weather. Starting early in the morning typically avoids afternoon storm development and rush-hour congestion near urban areas.
Pro Tip
Use Route Outlook's departure optimizer to find the best time to leave. Our 4D trajectory engine considers weather at each point along your route at the exact time you'll be there — not just at your destination. It also integrates live data from traffic cameras, DOT 511 feeds, and road weather sensors.
Frequently Asked Questions
How long is the drive from Post Falls to Seattle?
The drive is approximately 251 miles and takes about 5h 1m under normal traffic and weather conditions. Severe weather can add significant time to your trip.
What's the best day to drive this route?
Based on current forecasts, Tuesday, Nov 17 looks ideal. Low chance of precipitation with manageable conditions
Is it safe to drive from Post Falls to Seattle today?
Current conditions show medium risk along this route. Use caution and allow extra time. Reduce speed and increase following distance as conditions warrant.
Are there rest areas on the Post Falls to Seattle route?
Yes, there are 24 rest areas along this route. Facilities include restrooms, parking, and in some cases picnic areas and vending machines. Rest stops are spaced throughout the drive, so you'll never be too far from a break.
Can I see live traffic cameras on this route?
Yes, Route Outlook shows 12 live traffic cameras along this route, sourced from state DOT feeds. You can check road visibility, traffic flow, and pavement conditions in real time before and during your drive.
What highways does this route use?
This route primarily uses I-90 West. Conditions can vary between highway segments, so check live camera feeds and road condition reports for each stretch before departing.
Are there any road closures on this route right now?
No significant incidents or road closures are currently reported along this route. Conditions can change quickly — this page updates automatically with the latest data from state DOT 511 systems.
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🛡️Road Safety Features: Real-Time Conditions for Your Route
Real-time traffic incidents from 12 states, highway message signs, road conditions, and 25,000+ traffic cameras--integrated into your route planning.
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