Arlington, VA · separated · mixed

Four Mile Run Trail

6.4 mi Out-and-back 26 ft gain

6.4-mile mixed route with 26 ft of elevation gain, signed as part of the regional cycle network, route reference “FMR”, separated from motor traffic.

Live · updated Jun 13, 8:09 AM ET

Today's verdict

Marginal conditions — get the road bike out if you have to.

25 mph wind — strong — plan for slow outbound if wind is against you.

46 /100

46 Road

66 E-bike

Best for e-bike riding today

Route map

Orange marker is the start. Click the map to enable scroll-zoom — the polyline is approximate; use Ride with GPS or Komoot for turn-by-turn.

Atmosphere

Air temp

77°F

Sunny
Wind

25 mph

NW
Rain

0%

Next 24h: 0.00"
Humidity

69%

Surface & daylight

Pavement

dry

mixed surface
Sunrise

5:42 AM
Sunset

8:34 PM

746 min remaining

Best time today

2 PM looks best — 86°F · 6 mph NW wind · sunny. 9 AM is a close second (61/100).

9 AM

76°

Sunny

6 mph N

10 AM

80°

Sunny

6 mph N

11 AM

82°

Sunny

5 mph N

12 PM

84°

Sunny

5 mph NW

1 PM

85°

Sunny

5 mph NW

2 PM Best

86°

Sunny

6 mph NW

3 PM

88°

Sunny

6 mph NW

4 PM

88°

Sunny

5 mph W

5 PM

88°

Sunny

6 mph W

6 PM

89°

Mostly Clear

5 mph W

7 PM

87°

Mostly Clear

3 mph W

8 PM

85°

Partly Cloudy

3 mph W

Wind on this route

25 mph tailwind outbound — expect a 25 mph headwind on the return.

Currently 25 mph from the N (350°). Relative to this ride's overall bearing, a quartering tailwind.

Leg 1 Bearing 153° · tailwind 0.5 mi
Leg 2 Bearing 122° · quartering tailwind 0.5 mi
Leg 3 Bearing 121° · quartering tailwind 0.5 mi
Leg 4 Bearing 142° · tailwind 0.5 mi
Leg 5 Bearing 152° · tailwind 0.5 mi
Leg 6 Bearing 119° · quartering tailwind 0.5 mi
Leg 7 Bearing 112° · quartering tailwind 0.5 mi
Leg 8 Bearing 81° · crosswind 0.5 mi

Elevation profile

81 ft gain 320 ft loss Max 262' Min 7' 5.6 mi sampled

Score breakdown

77°F air Within comfort range, outside ideal

-3

−

25 mph wind Strong — plan for slow outbound if wind is against you.

-18

Quartering tailwind 25 mph tailwind outbound — expect a 25 mph headwind on the return.

Pavement: dry Clean dry pavement — maximum grip.

About this route

Distance: 6.4 mi one-way (double for round-trip)
Elevation gain: 26 ft
Surface: mixed
Shape: Out-and-back
Traffic exposure: separated
Activities: road cycling · e bike
Cycle network: RCN · route FMR
Start: 38.8748, -77.1339
City hub: Arlington, VA
OSM: relation 1623946

Description sourced from OpenStreetMap relation tags and member-way geometry.