Intellicast has a temp map, Garrett County Md is historically known for cooler summer temps. Right now it is 77 degrees in Oakland, Md with lows in the mid-50s at night, and 72 in McHenry Md, 50s-60s at night per forecast...McHenry is right on the shores of Deep Creek Lake.

Nemacolin resort in Pennsylvania. Great kids programs if you want some time without the kids to swim/bike/fly fish/skeet shoot/off-road driving school/etc without the kids. The spa is awesome and the rooms and resort are lovely but the grounds of the resort are the often unspoken star -- beautiful.

We were just in Wintergreen and while it was 92 last weekend, it was 76 there. I actually got cold at night and had to put on a sweatshirt

Davis, WV/ Canaan Valley/ Blackwater. Highs for this weekend are in the 80s.

Deep Creek Lake

Shenandoah or Blackwater Falls State Park in WV.

Just got back from my inlaws in western PA. There was a high of 80 degrees and it drops into the 50s/60s at night.

Laurel Highlands in PA. Was there a few weeks ago and had to wear a jacket until afternoon some days.

Ski resorts have summer activities. Massanutten, liberty, Canaan, wisp, wintergreen, etc.

Skyland in Shenandoah. Condos near Canaan Valley.

Lewes, DE
Poconos
Bethany
Cambridge Hyatt

Any mountain areas, resorts, homes for rent you recommend for a family with two kids (5 and 8) within 2-3 hours driving from NW DC? Looking to escape from the August heat.