Updated
Great Falls Park
Park · McLean, Virginia
Cold water — serious cold-shock risk today
Cold waterCold water — serious cold-shock risk today: water temperature is 53°F, cold enough to cause cold-water shock on sudden immersion.
- Water temp 53°F (12°C)
- Streamflow 31 ft³/s
- Gage height 2.99 ft
Live, provisional data from USGS gauge DIFFICULT RUN NEAR GREAT FALLS, VA (1.6 mi away), as of Oct 20, 2:15 AM gauge-local time.
- Flow is above the 75th percentile for Oct 20 (median 20 ft³/s over 91 years); fast water is the top river-drowning risk. — USGS daily streamflow statistics, as of Oct 20, 2:15 AM gauge-local time
Why, sources & official advisories
- Water temperature is 53°F, cold enough to cause cold-water shock on sudden immersion. — USGS gauge 01646000, as of Oct 20, 2:15 AM gauge-local time
No official beach-advisory feed for Virginia yet — follow posted signs and local guidance.
Get an email when it’s warm enough
It’s 53°F at Great Falls Park now. We check the water daily and email you once when it reaches your temperature.
Boasting spectacular falls & rushing white water, this park offers picnic areas, trails & boating.
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Weather at Great Falls Park
47°F, Clear · H 68° / L 46° · 3% chance of rain3-day forecast
Frequently asked questions
- Where is Great Falls Park?
- Great Falls Park is a park in McLean, Virginia.
- What is the water temperature at Great Falls Park?
- As of October 20, 2026, the water temperature at Great Falls Park in McLean, Virginia is 53°F (12°C), measured by USGS gauge 01646000, 1.6 miles away.
- Can you swim at Great Falls Park?
- Cold water — serious cold-shock risk today: water temperature is 53°F, cold enough to cause cold-water shock on sudden immersion. Checked October 20, 2026.
- How is Great Falls Park rated?
- Great Falls Park in McLean, Virginia has an average visitor rating of 4.8 out of 5, based on 13185 reviews.
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Location & Contact
9200 Old Dominion Dr, McLean, VA 22102
McLean, Virginia 22102
Phone
+1 703-757-3101Popular Times
💡 Best times & visiting tips
- ›Weekday mornings (8–10 AM) are typically less crowded
- ›Check the forecast 2–3 days ahead for best planning
- ›Avoid holiday weekends for a quieter experience
Features & amenities
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