Old Swamp River at Weymouth, MA
River level and flood forecast · Norfolk County
The river is 1.3 ft below flood stage (4.5 ft).
Flow: 26 cubic feet per second (USGS).
Much higher than normal for October 13.
Usual for October 13: 1 to 5 cubic feet per second (the middle half of 60 years).
The last 7 days and the forecast
NWS forecast issued Sun, Dec 31, 7 PM. Forecasts change as rain falls and as upstream water arrives.
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An email when the National Weather Service forecasts Old Swamp River at Weymouth to flood, when it floods, and when it's over.
Flood stages
| Major flood stage | 7 ft |
| Moderate flood stage | 6 ft |
| Flood stage | 4.5 ft |
| Action stage | 4 ft |
| Record crest (October 15, 2005) | 5.92 ft |
Highest crests on record
- 5.92 ft — October 15, 2005
- 5.71 ft — August 14, 2005
- 5.7 ft — March 15, 2010
- 5.46 ft — March 30, 2010
- 5.35 ft — June 8, 2006
Recent crests: 4.77 ft (March 24, 2024) · 4.81 ft (January 10, 2024) · 4.51 ft (September 2, 2021) · 4.6 ft (January 24, 2019) · 4.75 ft (March 3, 2018)
Highest flow on record
590 cubic feet per second — May 31, 1984. From the USGS's yearly peaks since 1967.
Up and down the river, and nearby
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (WTHM3); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.