Climbing Forecast › DC › Great Falls (Virginia)

DC · SCHIST

Great Falls (Virginia) weather & climbing conditions

Good — dry and climbable

Right now

Temp60°F
Wind7 mph
Gusts11 mph
Humidity91%
Rain 48h0.02 in
Last rain28h ago

Assessment

Should be dry
High humidity (91%) — schist friction compromised, particularly for bouldering

7-day forecast

Scroll through each day — hourly detail is shown inline.

Today Monday 5 October
Good
Temp70°F
Raindry
Wind11 mph
Gusts11 mph
Humidity52%
Should be dry
  • Schist climbs well when dry; lichen may slow drying in shade
Time °F Rain Wind (mph) Gust Hum
09:00 60° dry 7 — 91%
10:00 64° dry 9 — 77.2%
11:00 67° dry 11 — 64.5%
12:00 69° dry 12 — 57.8%
13:00 71° dry 12 — 46.2%
14:00 72° dry 12 — 41.1%
15:00 71° dry 12 — 39.4%
16:00 71° dry 12 — 39.1%
17:00 70° dry 11 — 38.5%
18:00 68° dry 10 — 43.2%
19:00 64° dry 8 — 49.3%
20:00 62° dry 9 — 50.7%
21:00 60° dry 9 — 52.4%
Tue Tuesday 6 October
Good
Temp61°F
Raindry
Wind4 mph
Gusts—
Humidity43%
Should be dry
  • Schist climbs well when dry; lichen may slow drying in shade
Time °F Rain Wind (mph) Gust Hum
06:00 48° dry 6 — 76.5%
07:00 47° dry 5 — 80.5%
08:00 48° dry 5 — 78.7%
09:00 52° dry 4 — 66.3%
10:00 55° dry 6 — 53.4%
11:00 58° dry 5 — 47.5%
12:00 60° dry 5 — 43.4%
13:00 61° dry 4 — 40.2%
14:00 62° dry 4 — 38.5%
15:00 63° dry 3 — 37.9%
16:00 64° dry 2 — 37.7%
17:00 63° dry 2 — 38.6%
18:00 62° dry 2 — 44.3%
19:00 57° dry 3 — 59.2%
20:00 55° dry 3 — 69.4%
21:00 54° dry 4 — 75.4%
Wed Wednesday 7 October
Good
Temp66°F
Raindry
Wind7 mph
Gusts—
Humidity53%
Should be dry
  • Schist climbs well when dry; lichen may slow drying in shade
Time °F Rain Wind (mph) Gust Hum
06:00 49° dry 6 — 79.1%
07:00 48° dry 6 — 78.3%
08:00 50° dry 6 — 74.2%
09:00 54° dry 4 — 66.1%
10:00 59° dry 6 — 61.1%
11:00 63° dry 8 — 55.5%
12:00 66° dry 8 — 51.7%
13:00 68° dry 8 — 50.7%
14:00 70° dry 7 — 49.5%
15:00 71° dry 8 — 49.7%
16:00 71° dry 8 — 50.2%
17:00 71° dry 8 — 52.5%
18:00 68° dry 6 — 60.1%
19:00 64° dry 6 — 71.8%
20:00 62° dry 7 — 76.4%
21:00 61° dry 8 — 79.7%
Thu Thursday 8 October
Good
Temp79°F
Raindry
Wind9 mph
Gusts—
Humidity42%
Should be dry
  • Schist climbs well when dry; lichen may slow drying in shade
Time °F Rain Wind (mph) Gust Hum
08:00 55° dry 4 — 95.5%
14:00 79° dry 9 — 41.6%
20:00 69° dry 8 — 49.7%
Fri Friday 9 October
Good
Temp73°F
Raindry
Wind3 mph
Gusts—
Humidity34%
Should be dry
  • Schist climbs well when dry; lichen may slow drying in shade
Time °F Rain Wind (mph) Gust Hum
08:00 54° dry 3 — 74.5%
14:00 73° dry 3 — 33.7%
20:00 62° dry 4 — 66.7%
Sat Saturday 10 October
Good
Temp73°F
Raindry
Wind4 mph
Gusts—
Humidity29%
Should be dry
  • Schist climbs well when dry; lichen may slow drying in shade
Time °F Rain Wind (mph) Gust Hum
08:00 53° dry 4 — 71.3%
14:00 74° dry 4 — 29.3%
20:00 62° dry 5 — 56.6%
Sun Sunday 11 October
Good
Temp72°F
Raindry
Wind5 mph
Gusts—
Humidity54%
Should be dry
  • Schist climbs well when dry; lichen may slow drying in shade
Time °F Rain Wind (mph) Gust Hum
08:00 55° dry 3 — 92.3%
14:00 72° dry 5 — 53.6%
20:00 67° dry 5 — 71.8%
Mon Monday 12 October
Poor
Temp68°F
Rain0.03 in
Wind4 mph
Gusts—
Humidity82%
0.8mm rain forecast
  • Wet schist is slippery and slow to dry
Time °F Rain Wind (mph) Gust Hum
08:00 62° dry 7 — 94.7%
14:00 67° 0.02 in 4 — 82.3%
20:00 63° dry 6 — 96.6%

About Great Falls (Virginia)

Great Falls Park is Washington DC's home crag — around 260 top-rope routes on the Virginia side of Mather Gorge, on mica schist cliffs 20–60 ft high directly above the Potomac River, 20 minutes west of DC. One of the few East Coast climbing areas where you belay directly above a big river — check water levels before climbing (belay spots can flood after heavy rain upstream). Tree anchors are the norm. Foot traffic from non-climbers is heavy at weekends. NPS: $20/vehicle 7-day pass; open daily 7am to 30 min after sunset (closed Christmas); arrive before 9am to avoid parking delays. Schist has real friction risks when wet — never climb on wet schist.

Region
DC
Rock type
Schist
Aspect
mixed-facing
Altitude
98 ft
Exposure
low
Seepage
medium