Updated
Flat Branch
River
Comfortable for a swim today
Good to swimComfortable for a swim today: water temperature is 75°F, within the comfortable 70–86°F range.
- Water temperature is 75°F, within the comfortable 70–86°F range.
- Flow is within the normal range (25th–75th percentile) for Aug 23 (median 2 ft³/s over 18 years).
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Comfortable for a swim today
Good to swimComfortable for a swim today: water temperature is 75°F, within the comfortable 70–86°F range.
- Water temperature is 75°F, within the comfortable 70–86°F range. — USGS gauge 01656903, as of Aug 22, 11:00 PM gauge-local time
- Flow is within the normal range (25th–75th percentile) for Aug 23 (median 2 ft³/s over 18 years). — USGS daily streamflow statistics, as of Aug 22, 11:00 PM gauge-local time
- Heavy rain today can raise bacteria levels near outfalls and river mouths.
Flow is normal for this date — within the normal range (25th–75th percentile) for Aug 23 (median 2 ft³/s over 18 years).
No official beach-advisory feed for Virginia yet — follow posted signs and local guidance.
Live, provisional data from USGS gauge FLATLICK BRANCH ABOVE FROG BRANCH AT CHANTILLY, VA (6.3 mi away), as of Aug 22, 11:00 PM gauge-local time.
Weather at Flat Branch
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Frequently asked questions
- Where is Flat Branch?
- Flat Branch is a river in Virginia.
- What is the water temperature at Flat Branch?
- As of August 22, 2026, the water temperature at Flat Branch in Virginia is 75°F (24°C), measured by USGS gauge 01656903, 6.3 miles away.
- Can you swim at Flat Branch?
- Comfortable for a swim today: water temperature is 75°F, within the comfortable 70–86°F range. Checked August 22, 2026.
- What amenities does Flat Branch have?
- Visitor-listed amenities at Flat Branch include camping-nearby.
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Location & Contact
Virginia
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