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 Jul 12, 11:09 AM ET

Today's verdict

Thunderstorms in the forecast — lightning and cyclists are a bad combination.

Thunderstorms — lightning and cyclists do not mix — get off the road before they arrive.
37 mph wind — gusty and hazardous on exposed bridges and overpasses.
Pavement: wet — wet during the likely ride window — reduced braking, road spray, limited visibility to drivers.

0 /100

skip

0 Road

0 E-bike

Best for road cycling 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

81°F

Cloudy
Wind

37 mph

E
Rain

28%

Next 24h: 0.00"
Humidity

70%

Surface & daylight

Pavement

wet

mixed surface
Sunrise

5:53 AM
Sunset

8:34 PM

566 min remaining

Best time today

5 PM looks best — 84°F · 9 mph E wind · mostly cloudy. 6 PM is a close second (25/100).

12 PM

82°

Slight Chance Showers And Thunderstorms

8 mph E

—

1 PM

83°

Slight Chance Showers And Thunderstorms

9 mph E

—

2 PM

83°

Chance Showers And Thunderstorms

9 mph E

—

3 PM

84°

Chance Showers And Thunderstorms

9 mph E

—

4 PM

84°

Slight Chance Showers And Thunderstorms

9 mph E

—

5 PM Best

84°

Mostly Cloudy

9 mph E

6 PM

81°

Mostly Cloudy

9 mph E

7 PM

79°

Mostly Cloudy

8 mph E

8 PM

78°

Mostly Cloudy

7 mph SE

Wind on this route

37 mph headwind outbound — expect a 37 mph quartering headwind on the return.

Currently 37 mph from the NE (50°). Relative to this ride's overall bearing, a quartering headwind.

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

Elevation profile

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

Score breakdown

81°F air Within comfort range, outside ideal

-3

−

37 mph wind Gusty and hazardous on exposed bridges and overpasses.

-36

−

Quartering headwind 37 mph headwind outbound — expect a 37 mph quartering headwind on the return.

-4

−

Thunderstorms Lightning and cyclists do not mix — get off the road before they arrive.

-45

−

Pavement: wet Wet during the likely ride window — reduced braking, road spray, limited visibility to drivers.

-32

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.