Climbing Forecast Pennsylvania McConnells Mill

PENNSYLVANIA · SANDSTONE

McConnells Mill climbing conditions

Good — dry and climbable

Right now

Temp62°F
Wind6 mph
Gusts9 mph
Humidity97.5%
Rain 48hdry
Last rainNone recent

Assessment

No recent rain

7-day forecast

Scroll through each day — hourly detail is shown inline.

Today Friday 21 August
Good
Temp64°F
Raindry
Wind6 mph
Gusts9 mph
Humidity84%
No recent rain
  • Hard sandstone climbs well when dry
Time °F Rain Wind (mph) Gust Hum
07:00 62° dry 6 97.5%
08:00 61° dry 6 97.2%
09:00 60° dry 5 97.1%
10:00 60° dry 5 97.6%
11:00 59° dry 5 97.6%
12:00 62° dry 6 96.2%
13:00 65° dry 5 92.9%
14:00 68° dry 6 80%
15:00 70° dry 7 65.5%
16:00 72° dry 6 56.5%
17:00 73° dry 6 50.7%
18:00 74° dry 6 47.3%
19:00 75° dry 5 45.9%
20:00 76° dry 4 45.4%
21:00 76° dry 4 45.9%
Sat Saturday 22 August
Poor
Temp66°F
Rain0.2 in
Wind7 mph
Gusts
Humidity78%
5.1mm rain forecastDo not climb wet sandstone
  • Wet sandstone is slippery — let the rock dry before leading
Time °F Rain Wind (mph) Gust Hum
06:00 61° dry 8 75.7%
07:00 61° dry 7 77.7%
08:00 61° dry 7 79%
09:00 60° dry 7 80.4%
10:00 60° dry 6 82.2%
11:00 60° dry 6 83.9%
12:00 63° dry 7 81.6%
13:00 67° dry 6 76.9%
14:00 70° dry 7 74.8%
15:00 73° dry 9 73.3%
16:00 76° dry 9 71.1%
17:00 77° 0.01 in 8 69.2%
18:00 78° 0.01 in 8 66.6%
19:00 77° 0.04 in 9 64.9%
20:00 72° 0.03 in 11 80.7%
21:00 71° 0.06 in 9 81.3%
Sun Sunday 23 August
Poor
Temp63°F
Rain0.3 in
Wind9 mph
Gusts
Humidity93%
8.3mm rain forecastDo not climb wet sandstoneHumidity 93% — potential fog
  • Wet sandstone is slippery — let the rock dry before leading
Time °F Rain Wind (mph) Gust Hum
06:00 63° dry 6 99.4%
07:00 62° dry 9 99.4%
08:00 61° dry 9 99.4%
09:00 61° dry 9 99.1%
10:00 60° dry 7 99.1%
11:00 60° dry 8 98.9%
12:00 60° 0.01 in 11 94.7%
13:00 61° 0.01 in 10 95.7%
14:00 62° 0.01 in 9 93.3%
15:00 65° 0.01 in 10 86%
16:00 67° dry 10 79.9%
17:00 69° 0.00 in 10 71.2%
18:00 71° 0.03 in 11 63.1%
19:00 66° 0.01 in 12 78.2%
20:00 68° dry 11 74.6%
21:00 69° 0.00 in 11 65.6%
Mon Monday 24 August
Poor
Temp57°F
Raindry
Wind8 mph
Gusts
Humidity93%
Only 17h since rain — needs ~50hHumidity 93% — potential fog
  • Hard sandstone climbs well when dry
Time °F Rain Wind (mph) Gust Hum
06:00 57° dry 4 94%
12:00 58° dry 8 92.9%
18:00 65° dry 8 59%
Tue Tuesday 25 August
Caution
Temp55°F
Raindry
Wind5 mph
Gusts
Humidity85%
Drying — 41h since rainSandstone may still hold subsurface moisture
  • Hard sandstone climbs well when dry
Time °F Rain Wind (mph) Gust Hum
06:00 53° dry 4 85.9%
12:00 56° dry 5 84.6%
18:00 71° dry 6 51.2%
Wed Wednesday 26 August
Caution
Temp59°F
Raindry
Wind3 mph
Gusts
Humidity91%
Should be drySandstone may still hold subsurface moistureHumidity 91% — potential fog
  • Hard sandstone climbs well when dry
Time °F Rain Wind (mph) Gust Hum
06:00 58° dry 4 88.3%
12:00 58° dry 3 91.3%
18:00 74° dry 2 55.9%
Thu Thursday 27 August
Good
Temp63°F
Raindry
Wind4 mph
Gusts
Humidity86%
Should be dry
  • Hard sandstone climbs well when dry
Time °F Rain Wind (mph) Gust Hum
06:00 62° dry 2 82.1%
12:00 63° dry 4 85.9%
18:00 78° dry 2 57.2%
Fri Friday 28 August
Caution
Temp66°F
Rain0.01 in
Wind7 mph
Gusts
Humidity96%
Should be dryHumidity 96% — potential fog
  • Hard sandstone climbs well when dry
Time °F Rain Wind (mph) Gust Hum
06:00 66° dry 5 97.9%
12:00 66° dry 7 95.5%
18:00 74° dry 9 71.7%

About McConnells Mill

McConnells Mill State Park is western Pennsylvania's main climbing area — a well-cemented sandstone gorge along Slippery Rock Creek, an hour north of Pittsburgh. The Slippery Rock Creek Gorge runs roughly north–south so cliffs face both east and west; treat the aspect as various. Mountain Project's top-ticked lines skew low-grade: Beginners' Face (5.4) and You Name It (5.5) on the trad / top-rope side, plus bouldering classics Ross' Boulder (V0+), Center Route (V0-), and Sweet Dreams (V0+). Harder problems exist but the well-ticked classics are in the V0 range. Sub-areas are Breakneck Bridge, Rim Road Climbing Area, North Country Trail Area, The Projects, and McConnells Mills Ice & Mixed (winter). The heavily forested gorge holds moisture — expect long drying after wet spells and vicious mosquitos June–August. October through April is the pleasant season with prime friction. Rock climbing or rappelling is prohibited on rocks along any road inside the park. PA DCNR — free day-use, no permits.

Region
Pennsylvania
Rock type
sandstone
Aspect
various-facing
Altitude
1155 ft
Exposure
medium
Seepage
high

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