Climbing Forecast › Pennsylvania › Ralph Stover (High Rocks)

PENNSYLVANIA · ARGILLITE

Ralph Stover (High Rocks) climbing conditions

Good — dry and climbable

Right now

Temp62°F
Wind9 mph
Gusts13 mph
Humidity94.6%
Rain 48hdry
Last rainNone recent

Assessment

No recent rain
Humidity 94.6% — potential fog/cloud, rock may be damp from condensation

7-day forecast

Scroll through each day — hourly detail is shown inline.

Today Friday 21 August
Good
Temp66°F
Raindry
Wind8 mph
Gusts13 mph
Humidity79%
No recent rain
  • Argillite is porous and shaded gorge walls hold moisture — check the rock is fully dry
Time °F Rain Wind (mph) Gust Hum
07:00 62° dry 9 — 94.6%
08:00 61° dry 8 — 94%
09:00 60° dry 9 — 92.2%
10:00 59° dry 9 — 91.5%
11:00 59° dry 8 — 90.9%
12:00 62° dry 8 — 86.4%
13:00 66° dry 8 — 80.1%
14:00 69° dry 9 — 73.2%
15:00 72° dry 8 — 68.2%
16:00 75° dry 6 — 64.1%
17:00 77° dry 5 — 60.6%
18:00 78° dry 5 — 54.8%
19:00 79° dry 5 — 52.4%
20:00 79° dry 4 — 50.1%
21:00 78° dry 5 — 50.8%
Sat Saturday 22 August
Good
Temp66°F
Rain0.00 in
Wind4 mph
Gusts—
Humidity89%
No recent rain
  • Argillite is porous and shaded gorge walls hold moisture — check the rock is fully dry
  • Damp air in the gorge — friction edges may feel greasy
Time °F Rain Wind (mph) Gust Hum
06:00 64° dry 3 — 97.7%
07:00 63° dry 4 — 99.1%
08:00 63° dry 5 — 98.1%
09:00 63° dry 5 — 97.1%
10:00 63° dry 4 — 96.2%
11:00 64° dry 4 — 93.5%
12:00 65° 0.00 in 4 — 91.8%
13:00 66° dry 5 — 90.5%
14:00 68° dry 4 — 87.8%
15:00 70° dry 5 — 83.9%
16:00 72° dry 4 — 76.8%
17:00 75° dry 4 — 61.7%
18:00 77° dry 5 — 56.7%
19:00 77° dry 6 — 56.3%
20:00 76° dry 7 — 58%
21:00 76° dry 8 — 58.8%
Sun Sunday 23 August
Poor
Temp70°F
Rain0.02 in
Wind4 mph
Gusts—
Humidity87%
0.5mm rain forecast
  • Wet argillite is slippery and slow to dry — give the gorge a full day after rain
  • Damp air in the gorge — friction edges may feel greasy
Time °F Rain Wind (mph) Gust Hum
06:00 66° dry 6 — 94.5%
07:00 65° dry 3 — 97.6%
08:00 65° dry 3 — 97.4%
09:00 65° dry 3 — 97.4%
10:00 64° dry 2 — 97.7%
11:00 65° dry 3 — 97.7%
12:00 68° dry 2 — 92.2%
13:00 71° dry 3 — 83.5%
14:00 73° 0.00 in 6 — 80.6%
15:00 73° dry 8 — 80.4%
16:00 75° 0.00 in 7 — 73.7%
17:00 78° 0.00 in 8 — 66.6%
18:00 80° dry 9 — 66%
19:00 80° dry 9 — 62.7%
20:00 80° dry 9 — 58.8%
21:00 80° dry 10 — 56.9%
Mon Monday 24 August
Good
Temp63°F
Rain0.00 in
Wind6 mph
Gusts—
Humidity86%
No recent rain
  • Argillite is porous and shaded gorge walls hold moisture — check the rock is fully dry
  • Damp air in the gorge — friction edges may feel greasy
Time °F Rain Wind (mph) Gust Hum
06:00 63° dry 7 — 83.5%
12:00 63° dry 6 — 86%
18:00 75° dry 10 — 54.4%
Tue Tuesday 25 August
Good
Temp61°F
Raindry
Wind7 mph
Gusts—
Humidity82%
No recent rain
  • Argillite is porous and shaded gorge walls hold moisture — check the rock is fully dry
Time °F Rain Wind (mph) Gust Hum
06:00 60° dry 7 — 78.2%
12:00 61° dry 7 — 82%
18:00 75° dry 8 — 51.5%
Wed Wednesday 26 August
Good
Temp64°F
Raindry
Wind2 mph
Gusts—
Humidity80%
No recent rain
  • Argillite is porous and shaded gorge walls hold moisture — check the rock is fully dry
Time °F Rain Wind (mph) Gust Hum
06:00 62° dry 7 — 78%
12:00 64° dry 2 — 79.7%
18:00 80° dry 6 — 49.3%
Thu Thursday 27 August
Poor
Temp68°F
Rain0.10 in
Wind5 mph
Gusts—
Humidity98%
2.5mm rain forecastHumidity 98% — likely fog/cloud
  • Wet argillite is slippery and slow to dry — give the gorge a full day after rain
  • Damp air in the gorge — friction edges may feel greasy
Time °F Rain Wind (mph) Gust Hum
06:00 67° 0.01 in 4 — 97.7%
12:00 68° 0.06 in 5 — 97.7%
18:00 72° 0.03 in 6 — 94.3%
Fri Friday 28 August
Poor
Temp68°F
Rain0.01 in
Wind6 mph
Gusts—
Humidity98%
Only 18h since rain — needs ~39hHumidity 98% — likely fog/cloud
  • Argillite is porous and shaded gorge walls hold moisture — check the rock is fully dry
  • Damp air in the gorge — friction edges may feel greasy
Time °F Rain Wind (mph) Gust Hum
06:00 69° dry 2 — 99.8%
12:00 69° dry 6 — 98.1%
18:00 80° dry 10 — 66.5%

About Ralph Stover (High Rocks)

Ralph Stover State Park (High Rocks) is south-eastern Pennsylvania's main trad and top-rope crag — a 200-foot south-facing Lockatong Formation red argillite wall (with friable Brunswick shale beds) above Tohickon Creek in Bucks County, an hour north of Philadelphia. Argillite is an indurated shale — porous and slow-drying, but the gorge setting shelters the crag from wind and its south aspect makes it "a fine winter destination on a sunny day" per Mountain Project. Top-ranked routes span the friendly grade range: Ivy Leaf (5.4), Open Face Slab (5.7), Triple Overhang (5.8), Dirty Sanchez (5.9+, two pitches), and Phone Booth (5.10a/b). Airy Route (5.3), Dead Tree (5.5), Hawk's Nest (5.6), Tango (5.8), and Neanderthal (5.8+) round out the historic tick list. PA DCNR land; no permits or registration required, but "climbing safety equipment is required" and placing new fixed hardware needs park approval. Park only in the Tory Road designated lots — tickets and towing on the street. No fees.

Region
Pennsylvania
Rock type
argillite
Aspect
south-facing
Altitude
420 ft
Exposure
low
Seepage
medium

Other crags in this region

Birdsboro QuarryMcConnells Mill