At Great Falls, the Potomac River builds up speed and force as it falls over a series of steep, jagged rocks and flows through the narrow Mather Gorge. The Patowmack Canal offers a glimpse into the early history of this country. Great Falls Park has many opportunities to explore history and nature, all in a beautiful 800-acre park only 15 miles from the Nation's Capital.
The Washington, D.C. area has a four-season Mid-Atlantic climate. Summertime is warm and humid, while winter can be cold and snowy. Precipitation averages 2-4â monthly, year-round.
From I-495, take exit 44 for route 193 west; continue 4 miles. Turn right on Old Dominion Drive.
Thursday, Jul 30
Sunny
High: 91.4°F | Low: 66.4°F
Humidity: 54%
Wind: 12.1 mph
Rain Chance: 2%
UV Index: 8.9
Sunrise: 06:08 AM
Sunset: 08:22 PM
Moon: Waning Gibbous (96%)
Visibility: 6 mi
Dew Point: 69.1°F
Cloud Cover: 2%
Pressure: N/A mb
Air Quality (PM2.5): N/A
Ozone: N/A
EPA Index: N/A
Friday, Jul 31
Sunny
High: 89.6°F | Low: 65.7°F
Humidity: 56%
Wind: 6.3 mph
Rain Chance: 3%
UV Index: 8.8
Sunrise: 06:09 AM
Sunset: 08:21 PM
Moon: Waning Gibbous (91%)
Visibility: 6 mi
Dew Point: 69.1°F
Cloud Cover: 3%
Pressure: N/A mb
Air Quality (PM2.5): N/A
Ozone: N/A
EPA Index: N/A
Saturday, Aug 1
Sunny
High: 93.2°F | Low: 68.3°F
Humidity: 55%
Wind: 12.3 mph
Rain Chance: 3%
UV Index: 9.1
Sunrise: 06:09 AM
Sunset: 08:20 PM
Moon: Waning Gibbous (83%)
Visibility: 6 mi
Dew Point: 71°F
Cloud Cover: 3%
Pressure: N/A mb
Air Quality (PM2.5): N/A
Ozone: N/A
EPA Index: N/A
Small Craft Advisory issued July 30 at 7:56AM EDT until July 30 at 6:00PM EDT by NWS Baltimore MD/Washington DC
Effective: Jul 30, 2026 7:56am
Expires: Jul 30, 2026 4:00pm
* WHAT...Northwest winds 10 to 15 kt with gusts up to 20 kt
expected.
* WHERE...Tidal Potomac from Key Bridge to Indian Head MD and
Patapsco River including Baltimore Harbor.
* WHEN...Until 6 PM EDT this evening.
* IMPACTS...Conditions will be hazardous to small craft.
Small Craft Advisory issued July 30 at 1:25PM EDT until July 30 at 6:00PM EDT by NWS Baltimore MD/Washington DC
Effective: Jul 30, 2026 1:25pm
Expires: Jul 30, 2026 6:00pm
* WHAT...Northwest winds 10 to 15 kt with gusts up to 20 kt.
* WHERE...Tidal Potomac River from Key Bridge to Cobb Island MD,
Patapsco River including Baltimore Harbor, and Patuxent River
to Broomes Island MD.
* WHEN...Until 6 PM EDT this evening.
* IMPACTS...Conditions will be hazardous to small craft.
Description: Explore the importance of water with this guided hike along the Potomac River which will last 30 to 35 mins. Learn about the journey water takes to allow us to cook, clean, and maintain our health and how you can help keep our water sources healthy. Intended for children 6-10, but all ages are welcome to join!Â
This hike will start at 9:00am at Overlook 2 and will take place on North River Trail which is fairly flat and would be sustainable for devices with wheels. This program does take place outdoors so, please come prepared for the weather. We ask that you RSVP by sending an email to GWMP_VSnorth@nps.gov with First Day Hike in the subject line, and group size in the body of the email. We hope to see you in the New Year!Â
Location: Please meet at 9:00 am at Overlook 2.
Date: Jan 1, 2026 12:00am to Jan 1, 2026 12:00am
Paid Event
Join a ranger for a family-friendly, wheels-accessible hike covering the history of Old Carriage Road. In this half-mile round trip, learn about how this popular path used to be a vital roadway from the canal era into the 20th century. Meet at the lower parking lot. Â
This hike will start at 1:00pm at the parking lot immediately after the fee booth and will take place on Old Carriage Road. This program does take place outdoors so, please come prepared for the weather. We ask that you RSVP by sending an email to GWMP_VSnorth@nps.gov with First Day Hike in the subject line. Please include the size of your group in your email! We hope to see you in the New Year!Â
Â
Location: Meet at the parking lot immediately after the fee booth at 1 PM.
Date: Jan 1, 2026 12:00am to Jan 1, 2026 12:00am
Paid Event
Step back in time on a guided History Hike at Great Falls Park. Discover the story of George Washingtonâs Patowmack Canal and the people who built and worked along the Potomac River. This guided hike explores the canal ruins and overlooks, blending spectacular scenery with the history of early American innovation and community life at Great Falls.Â
This hike will start at 11:00am at Overlook 3 and will take place on Patowmack Canal Trail. This program does take place outdoors so, please come prepared for the weather. We ask that you RSVP by sending an email to GWMP_VSnorth@nps.gov with First Day Hike in the subject line. Please include the size of your group in your email! We hope to see you in the New Year!Â
Date: Jan 1, 2026 12:00am to Jan 1, 2026 12:00am
Paid Event
Discover the biological realities of winter survival in this drop in program designed to dispel dangerous myths about cold tolerance and acclimatization. Learn to protect your group by identifying the "umbles" associated with hypothermia and the visual signs of frostbite across different skin tones. This essential safety briefing equips you with knowledge on proper layering, hydration, and the physiological limits of the human body in nature.
Â
Location: Meet at Overlook 3
Date: Jan 1, 2026 12:00am to Jan 1, 2026 12:00am
Paid Event
Commemorative Hikes for GRFA 60thÂ
Location: Great Falls ParkÂ
Time: 11am  Â
Join a Ranger on a special commemorative hike celebrating the 250th anniversary of the United States and the 60th anniversary of Great Falls Park.
This guided 1.5âmile walk invites visitors to explore the powerful landscape and learn about George Washington vision of the canal project at Great Falls and the enslaved labor used to improve transportation and commerce.  Â
Date: May 2, 2026 12:00am to Sep 30, 2026 12:00am
Paid Event
Great Falls Through Time: Nature, History, Design, and 60th anniversary Â
Location: Great Falls Park AuditoriumÂ
Time: 10am-1pmÂ
Join us for a morning of nature, history, science, and discovery as local experts discuss the parksâ unique biodiversity.
Date: May 16, 2026 12:00am to May 16, 2026 12:00am
Paid Event
This Sunday, June 28th at 1:00 pm in the Great Falls Visitor Center, join Award-Winning Actress & Smithsonian Scholar Mary Ann Jung for a new hour-long performance: Martha Washington - A Revolutionary Woman.
"Martha Washington was so much more than the kindly grandmother image most people have of her. She was a smart, courageous woman who risked her life to support her beloved husband George Washington and his troops during the Revolutionary War. She was an indispensable part of the forming of our nation and set the standards of what a First Lady should be. Learn about Martha's sacrifices and strategies as she forged a new path in a brand-new country. It's a delightful interactive adventure in Colonial America."
The performance is free to attend, but the parkâs standard entrance fee still applies to attendees. For questions, please call 703-757-3101. This program was funded by Eastern National, a nonprofit partner of the National Park Service.
Location: Performance will begin in the Great Falls Park Visitor Center auditorium.
Date: Jun 28, 2026 12:00am to Jun 28, 2026 12:00am
Paid Event
Date: Jul 3, 2026 12:00am to Jul 5, 2026 12:00am
Paid Event
Summer Lecture Series special 250Â
Location: Great Falls Park AuditoriumÂ
Time: 10am-12pmÂ
Explore how Great Falls connects to the American story in this fourâpart summer lecture series. Topics include the influence of the Haudenosaunee on early American democracy, the Patowmack Canalâs role in shaping the young nation, the labor and legacy of the people who built and sustained this landscape, and how the National Park Service continues to care for Americaâs natural and cultural resources today.
Great Falls: Front Door to Democracy Discover how Great Falls became a gateway to the American story. From early transportation routes to the development of public lands, this theme explores how the landscape reflects the nationâs democratic ideals and shared heritage. Â Canal to Constitution Learn how George Washingtonâs vision for the Patowmack Canal helped shape the young nation. This theme connects early engineering, commerce, and nationâbuilding to the founding principles that guided the Constitution. Â Labor and Legacy This theme honors the people who built and shaped Great Fallsâfrom Indigenous communities and enslaved laborers to engineers and modern stewards. Their work and stories form the foundation of the parkâs enduring legacy. Â Caring for Americaâs Landscape Explore how Great Falls and other national parks are protected today. This theme highlights the science, stewardship, and community involvement that keep Americaâs natural and cultural resources thriving for future generations.Date: Jul 18, 2026 12:00am to Jul 18, 2026 12:00am
Paid Event
Date: Jul 22, 2026 12:00am to Jul 22, 2026 12:00am
Paid Event
đ Physical Address:
9200 Old Dominion Dr.
McLean, VA 22102
đ¤ Mailing Address:
Great Falls Park
c/o Turkey Run Park
McLean, VA 22101
đ Voice Phone: 7037573101
âď¸ Email: gwmp_superintendent@nps.gov