Nashua River at East Pepperell, MA

The last 7 days and the forecast

NWS forecast issued Mon, Oct 12, 11:14 AM. Forecasts change as rain falls and as upstream water arrives.

Flood stages

What floods at each level

From the National Weather Service, highest first.

• 16 ftWidespread inundation of residential areas along the Nashua River is likely. Areas that will be the most impacted include parts of East Pepperell, Hollis and Nashua. Flooding is expected along a stretch of Route 119 in Pepperell. In Groton, potentially affected areas include Fitchs Bridge Road, Long Hill Road, and Route 225. Take action now to protect life and property. Follow the directions of emergency management officials. The standard river gage does not report at this elevation.
• 15 ftFlooding is expected in low lying residential areas along portions of the Nashua River. Floodwaters inundate a Pepperell Airport as well as low lying areas on route 119. Know the alternate routes in your location so you avoid areas where flood waters may have damaged or closed area roadways. Follow the directions of local officials and if asked to evacuate do so immediately. The standard river gage can not report much higher than this elevation
• 14 ftFlooding is expected in low lying residential areas along portions of the Nashua River. Floodwaters inundate a portion of Route 119 in Pepperell, and also inundate businesses on Route 119 near its junction with Route 111. Know the alternate routes in your location so you avoid areas where flood waters may have damaged or closed area roadways. Follow the directions of local officials and if asked to evacuate do so immediately. The standard river gage can not report much higher than this elevation.
• 12 ftFlooding is expected in low lying residential areas along portions of the Nashua River. Floodwaters inundate a portion of Route 119 in Pepperell, and also inundate businesses on Route 119 near its junction with Route 111. Know the alternate routes in your location so you avoid areas where flood waters may have damaged or closed area roadways.
• 11 ftFlooding is expected in low lying residential areas along portions of the Nashua River. Follow the directions provided by your local emergency management officials. Avoid flood prone locations. Know the alternate routes in your location so you avoid areas where flood waters may have damaged or closed area roadways.
• 10 ftMinor lowland flooding is likely along the river from East Pepperell downstream through Hollis. Flooding will impact some low lying businesses along Route 119 in Pepperell in the vicinity of Route 111.
• 9 ftMinor lowland flooding is likely along the river from East Pepperell downstream through Hollis. Flooding will impact low lying businesses along Route 119 in Pepperell in the vicinity of its junction with Route 111.
• 8 ftMinor lowland flooding is likely along the river from East Pepperell downstream through Hollis.

Highest crests on record

1. 19.1 ft — March 20, 1936
2. 16.19 ft — April 7, 1987
3. 15.75 ft — March 17, 2010
4. 14.08 ft — September 23, 1938
5. 13.78 ft — April 1, 2010

Recent crests: 8.65 ft (May 11, 2025) · 7.06 ft (April 14, 2024) · 7.09 ft (March 12, 2024) · 8.15 ft (January 15, 2024) · 9.41 ft (December 20, 2023)

Highest flow on record

20,900 cubic feet per second — March 20, 1936. From the USGS's yearly peaks since 1936.

Up and down the river, and nearby

• UpstreamNashua River at Clinton, MA, MA
• Squannacook River at West Groton, MA
• Merrimack River at Nashua, NH
• North Nashua River at Fitchburg, MA
• Souhegan River at Merrimack, NH
• Beaver Brook at North Pelham, NH
• Souhegan River at Milford, NH
• North Nashua River at Leominster, MA
• Concord River at Lowell, MA