Station Name: East Branch Brandywine Creek below Downingtown, PA
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 213 feet

Nearest Address:
Downingtown Pike
Downingtown, PA 19380
Chester County

GPS Coordinates: 39.9687191, -75.6732715

Nearby Water Temperatures

Heat Advisory issued July 14 at 2:38AM EDT until July 15 at 8:00PM EDT by NWS Mount Holly NJ

Effective: Tue July 14, 2026, 2:38 AM
Expires: Tue July 14, 2026, 4:00 PM

* WHAT...Heat index values up to 104 degrees expected. * WHERE...Berks, Lehigh, Northampton, Eastern Chester, Upper Bucks, Western Chester, and Western Montgomery Counties. * WHEN...From 10 AM to 8 PM EDT Wednesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS...While the hottest conditions are expected to occur on Wednesday, heat indices will climb into the mid to upper 90s today.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1.

Extreme Heat Warning issued July 14 at 2:38AM EDT until July 15 at 8:00PM EDT by NWS Mount Holly NJ

Effective: Tue July 14, 2026, 2:38 AM
Expires: Tue July 14, 2026, 4:00 PM

* WHAT...Dangerously hot conditions with heat index values up to 107 degrees expected. * WHERE...In Delaware, New Castle County. In New Jersey, Mercer, Camden, Gloucester, and Northwestern Burlington Counties. In Pennsylvania, Delaware, Eastern Montgomery, Lower Bucks, and Philadelphia Counties. * WHEN...From 10 AM to 8 PM EDT Wednesday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. * ADDITIONAL DETAILS...While the hottest conditions are expected to occur on Wednesday, heat indices will climb into the mid 90s today.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. If you do not have air conditioning in your home or lack shelter, you can call 211 or visit your county or state health department website for assistance locating appropriate shelter from the heat.

Heat Advisory issued July 14 at 2:38AM EDT until July 15 at 8:00PM EDT by NWS Mount Holly NJ

Effective: Tue July 14, 2026, 2:38 AM
Expires: Tue July 14, 2026, 4:00 PM

* WHAT...Heat index values up to 108 degrees expected. * WHERE...In Delaware, Kent and Inland Sussex Counties. In Maryland, Caroline County. In New Jersey, Atlantic, Cape May, Cumberland, and Salem Counties. * WHEN...From 10 AM to 8 PM EDT Wednesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1.