Rockville, MD · on road · paved

Dufief Mill Road

2 mi Out-and-back 82 ft gain

2-mile paved route with 82 ft of elevation gain, signed as part of the regional cycle network, routed on public roads.

Live · updated Aug 11, 1:47 PM 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.
Pavement: wet — wet during the likely ride window — reduced braking, road spray, limited visibility to drivers.
29 mph wind — strong — plan for slow outbound if wind is against you.
Exposed + wet + windy — on road traffic in wet windy conditions — visibility and handling margin drop together.

0 /100

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0 Bike commuting

0 Road

0 E-bike

0 Bike-share

Best for bike commuting 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

82°F

Mostly Clear
Wind

29 mph

W
Rain

18%

Next 24h: 0.19"
Humidity

66%

Surface & daylight

Pavement

wet

paved surface
Sunrise

6:18 AM
Sunset

8:09 PM

384 min remaining

Best time today

4 PM looks best — 86°F · 7 mph W wind · partly sunny.

2 PM

86°

Slight Chance Showers And Thunderstorms

6 mph W

—

3 PM

86°

Slight Chance Showers And Thunderstorms

6 mph W

—

4 PM Best

86°

Partly Sunny

7 mph W

5 PM

86°

Slight Chance Showers And Thunderstorms

7 mph W

—

6 PM

85°

Slight Chance Showers And Thunderstorms

7 mph NW

—

7 PM

83°

Chance Showers And Thunderstorms

6 mph W

—

Wind on this route

29 mph headwind outbound — expect a 29 mph headwind on the return.

Currently 29 mph from the W (260°). Relative to this ride's overall bearing, a quartering headwind.

Leg 1 Bearing 229° · quartering headwind 0.2 mi
Leg 2 Bearing 229° · quartering headwind 0.2 mi
Leg 3 Bearing 221° · quartering headwind 0.2 mi
Leg 4 Bearing 209° · quartering headwind 0.2 mi
Leg 5 Bearing 204° · quartering headwind 0.2 mi
Leg 6 Bearing 209° · quartering headwind 0.2 mi
Leg 7 Bearing 228° · quartering headwind 0.2 mi
Leg 8 Bearing 244° · headwind 0.2 mi

Elevation profile

99 ft gain 96 ft loss Max 404' Min 341' 1.9 mi sampled

Score breakdown

82°F air Within comfort range, outside ideal

-3

−

Exposed + wet + windy on road traffic in wet windy conditions — visibility and handling margin drop together.

-12

−

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

-18

−

Quartering headwind 29 mph headwind outbound — expect a 29 mph 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

Advisories & nearby alerts

NWSTest Message

About this route

Distance: 2 mi one-way (double for round-trip)
Elevation gain: 82 ft
Surface: paved
Shape: Out-and-back
Traffic exposure: on road
Activities: road cycling · e bike · commuting · bike share-touring
Cycle network: RCN
Start: 39.1002, -77.2250
City hub: Rockville, MD
OSM: relation 16243531

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