Origin
Welby, CO
Late night in Welby on Tuesday
Local time
2:46 AM
MDT
Current temp
36°F
Unavailable
Live forecast
Trip from Welby, CO to Longmont, CO
Pin this tripCompiled and reviewed by the US Trip Planner planning team at COD Solutions Oy · Last reviewed Apr 21, 2026 · Editorial standards
Drive Time
39m
Distance
30.8 mi
50 km
Drive Score
6/10
Good drive
Same Day?
Yes, doable
Fuel Cost
$5
one way
EV Charging
Unknown
Best Time to Leave
4 AM
0h 37m
★
6 AM
0h 40m
8 AM
0h 47m
10 AM
0h 42m
12 PM
0h 42m
3 PM
0h 43m
5 PM
0h 46m
8 PM
0h 38m
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Welby, CO
Janusz Mitura
Longmont, CO
Wikimedia Commons
Trip Overview
This straightforward 30.8-mile drive from Welby, Colorado, to Longmont, Colorado, is easily manageable in about 39 minutes. Designed as a single-day trip, it won't require an overnight stay. You'll primarily travel on segments of the Dwight D. Eisenhower Highway, North Valley Highway, and Highway 119. With an estimated fuel cost of just $5, this route offers an economical way to travel between two points within the Mountain West region. The generally flat terrain and proximity within Colorado make it a simple transit.
Main Roads
| Road | Distance | Duration |
|---|---|---|
| Dwight D. Eisenhower Highway | 12.2 mi | 12m |
| North Valley Highway | 9 mi | 10m |
| Highway 119 | 3.1 mi | 3m |
| East 3rd Avenue | 1.9 mi | 3m |
| East Ken Pratt Boulevard | 1.6 mi | 1m |
| East 78th Avenue | 1 mi | 2m |
| Washington Street | 0.8 mi | 1m |
| East 84th Avenue | 0.4 mi | <1m |
Longest stretch:
Dwight D. Eisenhower Highway
— 12.2 mi, about 12m
Turn-by-Turn Driving Directions
Step-by-step road directions between Welby, CO and Longmont, CO.
1
Start on North York Street
71 ft
·
7 sec
·
North York Street
2
Continue on North York Street
0.1 mi
·
28 sec
·
North York Street
3
Turn left onto East 78th Avenue
1.0 mi
·
2 min
·
East 78th Avenue
4
Turn right onto Washington Street
0.8 mi
·
1 min
·
Washington Street
Use the right lane.
5
Turn left onto East 84th Avenue
0.4 mi
·
52 sec
·
East 84th Avenue
Use the left lane.
6
Take the ramp
0.2 mi
·
31 sec
Toward I 25 North: Fort Collins
7
Merge onto I 25
3.7 mi
·
4 min
·
North Valley Highway
Use the slight right lane.
8
Keep slight right at fork onto I 25
5.3 mi
·
5 min
·
North Valley Highway
Use the straight / right lanes.
9
Continue on I 25
12 mi
·
12 min
·
Dwight D. Eisenhower Highway
10
Take the exit
0.2 mi
·
18 sec
Exit 240
Toward CO 119 West: Firestone Boulevard
Use the straight / slight right lanes.
11
Keep slight left at fork
290 ft
·
7 sec
Toward CO 119 West: Longmont
12
Turn left onto CO 119
3.1 mi
·
3 min
·
Highway 119
Use the left / straight lanes.
13
Continue on CO 119
1.6 mi
·
1 min
·
East Ken Pratt Boulevard
14
Take the exit
226 ft
·
6 sec
15
Turn right onto East 3rd Avenue
1.9 mi
·
3 min
·
East 3rd Avenue
Use the right lane.
16
Turn right onto Kimbark Street
0.2 mi
·
55 sec
·
Kimbark Street
17
Turn left
186 ft
·
15 sec
18
Turn right
109 ft
·
7 sec
19
Arrive at destination
Heads-up: tricky spots
5 of 145 decision points cluster between mile 1.1 and 23.8 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
6
1.1 mi into trip
|
~2m in
|
Washington Street
Turn right onto Washington Street
Lane positioning matters here
Use the right lane.
5
2.5 mi into trip
|
~5m in
|
I 25 / North Valley Highway
Merge onto I 25 / North Valley Highway
Merge point - match speed before joining. Lane positioning matters here
Use the slight right lane.
6
6.2 mi into trip
|
~10m in
|
I 25 / North Valley Highway
Keep slight right at fork onto I 25 / North Valley Highway
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight / right lanes.
7
23.7 mi into trip
|
~28m in
Take the exit toward CO 119 West: Firestone Boulevard
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the straight / slight right lanes.
Exit 240
Toward CO 119 West: Firestone Boulevard
6
23.8 mi into trip
|
~29m in
Keep slight left at fork toward CO 119 West: Longmont
Highway fork - watch signs carefully
Toward CO 119 West: Longmont
Fuel & Cost
Regular Gas
$4.64 one way
$9.28 round trip
$3.83/gal
25.4 MPG avg
11 kg CO2
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.05 | $4.91 | $9.83 |
| premium | $4.39 | $5.33 | $10.66 |
| diesel | $5.61 | $6.80 | $13.60 |
No toll roads detected on this route.
Drive Cost (one way)
Fuel
$5
Estimated CO2 emission: 10.8 kg one way. Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $3 in charging · 0 stops · 64% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 9.2 | 0 | $3.23 | $1.48 |
| Efficient EV | 7.7 | 0 | $2.70 | $1.23 |
| EV Truck/SUV | 12.3 | 0 | $4.31 | $1.97 |
Gas CO2
11 kg
EV CO2
4 kg (64% less)
This trip is well within single-charge range for most EVs. No charging stops needed if you start fully charged.
DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.
Travel Intel
Current conditions at both ends of the drive.
Destination
Longmont, CO
Late night in Longmont on Tuesday
Local time
2:46 AM
MDT
Current temp
54°F
Unavailable
Live forecast
Time zone
Same local time
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
18 degrees warmer at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
39m on the road
Use the two city cards together: check the sky where you start, then compare it with the local time and temperature at arrival.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
What kind of drive is this?
Expect a 'turn-heavy' local drive with a modest 10% highway share. While there's a longest stretch of 12.2 miles on the Dwight D. Eisenhower Highway, much of this journey involves navigating local roads and intersections. The character of the drive shifts between quicker highway segments and more deliberate local road travel, requiring your attention to be on road signs and traffic flow. This isn't a route for cruising on autopilot; it's more about efficient navigation through populated areas.
Only 10% highway — the rest is turn-by-turn surface driving.
19 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 12.2 mi on Dwight D. Eisenhower Highway.
How Hard Is This Drive?
8/10
Expect a hands-on drive with frequent turns and local roads rather than long highway stretches. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 1.1 miles in near Washington Street.
Driving Effort
8/10
Focused - busy navigation packed into a short drive
Balances navigation complexity with total wheel time.
This is a short but busy drive. With 14 decision points packed into just 30.8 miles, you will need to pay attention to lane changes and exits — but the whole thing is over in 39m.
Where does it get tricky?
The main spots that need attention: at 1.1 miles (Washington Street): Lane positioning matters here; at 2.5 miles (I 25 / North Valley Highway): Merge point - match speed before joining. Lane positioning matters here; at 6.2 miles (I 25 / North Valley Highway): Highway fork - watch signs carefully. Lane positioning matters here.
About the Cities
Arriving in Longmont, CO
Full guide →Longmont is a city of about 100,000 in North Central Colorado. The city lies in Boulder and Weld counties 30 miles (48 km) north-northwest of the Denver.
City content from Wikivoyage (CC BY-SA 4.0) and Wikidata (CC0).
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 39m. Total distance: 30.8 miles.
Family Friendly
Moderate complexity with 0 natural rest stops along the way.
Solo Traveler
39m drive, comfortable solo distance.
EV Driver
0 DC fast chargers along the route. Coverage: unknown.
Scenic Drive
Mostly surface roads route profile.
Frequently Asked Questions
The longest stretch is about 12.2 miles on Dwight D. Eisenhower Highway. The full list of main roads is in the Roads section above.
It helps. This route has a higher-than-average number of complex decision points, which get harder in the dark. If the last hour of the trip is on surface roads or mountain grades, aim to arrive at Longmont, CO before sunset when you can. Check the Trip Plan for departure windows that land you in daylight.
Yes. At under 2 hours behind the wheel, this works well for families — plan one quick stop if you have younger kids.
The main spots that need attention: at 1.1 miles (Washington Street): Lane positioning matters here; at 2.5 miles (I 25 / North Valley Highway): Merge point - match speed before joining. Lane positioning matters here; at 6.2 miles (I 25 / North Valley Highway): Highway fork - watch signs carefully. Lane positioning matters here.
Yes. A round trip is manageable in a single day if you plan a break at Longmont, CO before heading back.
How this page is built
Compiled by the US Trip Planner planning team at COD Solutions Oy from open government datasets — OSRM over OpenStreetMap for geometry, and EIA for fuel prices. See our methodology for refresh cadence and limitations.
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