Next 7 departures
- SatOct 3
ClearNo significant weather expected. Temperatures 45–71°F along the way.
Along the way
Checkpoint · arrival Weather · temperature Boise7 AM MDT Mostly sunny54°F Idaho–Oregon line7:45 AM MDT Sunny49°F Baker City8 AM PDT Mostly sunny46°F I-84 near Meacham9 AM PDT Sunny45°F Deadman Pass9 AM PDT Sunny56°F Boardman10 AM PDT Sunny60°F The Dalles11:15 AM PDT Sunny71°F Portland12:45 PM PDT Sunny69°F - SunOct 4
ClearNo significant weather expected. Temperatures 48–73°F along the way.
Along the way
Checkpoint · arrival Weather · temperature Boise7 AM MDT Sunny56°F Idaho–Oregon line7:45 AM MDT Sunny48°F Baker City8 AM PDT Mostly sunny50°F I-84 near Meacham9 AM PDT Sunny48°F Deadman Pass9 AM PDT Mostly sunny57°F Boardman10 AM PDT Mostly sunny61°F The Dalles11:15 AM PDT Sunny73°F Portland12:45 PM PDT Mostly sunny71°F - MonOct 5
ClearNo significant weather expected. Temperatures 52–77°F along the way.
Along the way
Checkpoint · arrival Weather · temperature Boise7 AM MDT Partly sunny61°F Idaho–Oregon line7:45 AM MDT Partly sunny53°F Baker City8 AM PDT Partly sunny55°F I-84 near Meacham9 AM PDT Mostly sunny52°F Deadman Pass9 AM PDT Mostly sunny63°F Boardman10 AM PDT Mostly sunny64°F The Dalles11:15 AM PDT Mostly sunny77°F Portland12:45 PM PDT Mostly sunny68°F - TueOct 6
ClearNo significant weather expected. Temperatures 48–73°F along the way.
Along the way
Checkpoint · arrival Weather · temperature Boise7 AM MDT Sunny58°F Idaho–Oregon line7:45 AM MDT Sunny52°F Baker City8 AM PDT Sunny51°F I-84 near Meacham9 AM PDT Mostly sunny48°F Deadman Pass9 AM PDT Mostly sunny57°F Boardman10 AM PDT Mostly sunny63°F The Dalles11:15 AM PDT Mostly sunny73°F Portland12:45 PM PDT Partly sunny68°F - WedOct 7
ClearNo significant weather expected. Temperatures 48–73°F along the way.
Along the way
Checkpoint · arrival Weather · temperature Boise7 AM MDT Mostly sunny57°F Idaho–Oregon line7:45 AM MDT Sunny51°F Baker City8 AM PDT Sunny51°F I-84 near Meacham9 AM PDT Mostly sunny48°F Deadman Pass9 AM PDT Mostly sunny57°F Boardman10 AM PDT Mostly sunny62°F The Dalles11:15 AM PDT Sunny73°F Portland12:45 PM PDT Mostly sunny69°F - ThuOct 8
ClearNo significant weather expected. Temperatures 50–74°F along the way.
Along the way
Checkpoint · arrival Weather · temperature Boise7 AM MDT Mostly sunny58°F Idaho–Oregon line7:45 AM MDT Sunny52°F Baker City8 AM PDT Sunny52°F I-84 near Meacham9 AM PDT Mostly sunny50°F Deadman Pass9 AM PDT Mostly sunny60°F Boardman10 AM PDT Sunny63°F The Dalles11:15 AM PDT Sunny74°F Portland12:45 PM PDT Mostly sunny70°F - FriOct 9
ClearNo significant weather expected. Temperatures 50–72°F along the way.
Along the way
Checkpoint · arrival Weather · temperature Boise7 AM MDT Mostly sunny58°F Idaho–Oregon line7:45 AM MDT Mostly sunny51°F Baker City8 AM PDT Mostly sunny51°F I-84 near Meacham9 AM PDT Mostly sunny50°F Deadman Pass9 AM PDT Mostly sunny59°F Boardman10 AM PDT Mostly sunny63°F The Dalles11:15 AM PDT Mostly sunny72°F Portland12:45 PM PDT Partly sunny68°F
The worst conditions expected at any checkpoint, timed to when you would reach it driving without stops. Levels use Road Travel’s driving-risk scale.
The route, stop by stop
Checkpoints in order, with driving time from Boise (no stops) and elevation. The forecast above is timed to these.
- Boise, IDStart 2,707 ftelevation
- Idaho–Oregon lineState line · Mile 55 · 50 min 2,163 ftelevation
- Baker City, ORMile 128 · 1 h 58 min 3,446 ftelevation
- I-84 near Meacham, ORMile 191 · 2 h 55 min 4,198 ftelevation
- Deadman Pass, ORMountain pass · Mile 204 · 3 h 6 min 3,609 ftelevation
- Boardman, ORMile 268 · 4 h 5 min 310 ftelevation
- The Dalles, ORMile 347 · 5 h 17 min 105 ftelevation
- Portland, ORMile 431 · 6 h 42 min 34 ftelevation
Typical weather by month
Average daily highs and lows, and days with an inch or more of snow, at Boise, I-84 near Meacham and Portland.
| Month | Boise 2,814 ft | I-84 near Meacham Meacham station · 3,723 ft | Portland 19 ft | |||
|---|---|---|---|---|---|---|
| High / low °F | Snow days | High / low °F | Snow days | High / low °F | Snow days | |
| Jan | 39° / 26° | 1.8 | 37° / 21° | 6.8 | 48° / 36° | 0.6 |
| Feb | 46° / 29° | 1.2 | 40° / 22° | 5.5 | 52° / 37° | 0.3 |
| Mar | 56° / 35° | 0.5 | 46° / 24° | 6.2 | 57° / 40° | 0 |
| Apr | 62° / 40° | 0 | 52° / 29° | 2.9 | 62° / 44° | 0 |
| May | 72° / 48° | 0 | 61° / 34° | 0.3 | 69° / 49° | 0 |
| Jun | 81° / 54° | 0 | 68° / 39° | 0.1 | 74° / 54° | 0 |
| Jul | 93° / 62° | 0 | 79° / 42° | 0 | 82° / 59° | 0 |
| Aug | 91° / 61° | 0 | 79° / 40° | 0 | 82° / 59° | 0 |
| Sep | 80° / 53° | 0 | 70° / 34° | 0 | 77° / 54° | 0 |
| Oct | 65° / 42° | 0.1 | 57° / 29° | 0.7 | 64° / 47° | 0 |
| Nov | 49° / 32° | 0.8 | 43° / 26° | 4.0 | 54° / 41° | 0 |
| Dec | 39° / 25° | 1.7 | 35° / 20° | 7.5 | 47° / 36° | 0.5 |
NOAA NCEI U.S. Climate Normals, 1991–2020: BOISE AIR TERMINAL (USW00024131, 2,814 ft); MEACHAM (USW00024152, 3,723 ft); PORTLAND INTL AP (USW00024229, 19 ft). Snow days are days with at least 1 inch of new snow. “—” means the station does not publish that normal.
Road conditions
Closures and chain rules change by the hour, so we link to the official reports for Idaho and Oregon rather than repeat them.
- Idaho · ITD511 Idaho road conditions
- Oregon · ODOTTripCheck road conditions
- Oregon · winter rulesChain laws
Check the official National Weather Service forecast and each state's road report before you leave.
Get alerts timed to where you’ll be when you get there
Road Travel plans the drive from Boise to Portland with the forecast at every stretch for the hour you’ll reach it, then warns you about weather ahead while you drive.
Questions about this drive
How long is the drive from Boise to Portland?
431 miles, about 6½ hours of driving without stops, by way of I-84. Fuel, food and rest stops add to that.
What is the highest point on the drive?
On I-84 near Meacham, at 4,198 ft. It comes at mile 191, about 2 h 55 min of driving after you leave Boise.
Does it snow on I-84 near Meacham in November?
The nearest long-term NOAA station, Meacham (3,723 ft), averages 14.2 inches of snow in November, with about 4 days of 1 inch or more (1991–2020 normals).
How cold is Portland in January?
Portland averages a high of 48°F and a low of 36°F in January (1991–2020 normals).