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Merrimack River At Concord

Back to River Summary

Hydrograph

Stage Color Key
12 ft - Near Flood	14 ft - Minor Flood	17 ft - Moderate Flood	20 ft - Major Flood

Latest Observation: Thursday September 17th, 2026 06:30 PM EDT
River Status: Normal

	Height	Flow
Currently	3.31 ft	2.43 kcfs
Record	26.2 ft	N/A

Observation
	Date (EDT)	Stage (ft)	Flow (kcfs)
	Thursday 09/17/2026 06:30 PM	3.31	2.43
	Thursday 09/17/2026 06:15 PM	3.29	2.40
	Thursday 09/17/2026 06:00 PM	3.28	2.39
	Thursday 09/17/2026 05:45 PM	3.28	2.39
	Thursday 09/17/2026 05:30 PM	3.27	2.37
	Thursday 09/17/2026 05:15 PM	3.28	2.39
	Thursday 09/17/2026 05:00 PM	3.26	2.36
	Thursday 09/17/2026 04:45 PM	3.25	2.34
	Thursday 09/17/2026 04:30 PM	3.25	2.34
	Thursday 09/17/2026 04:15 PM	3.24	2.32
	Thursday 09/17/2026 04:00 PM	3.24	2.32
	Thursday 09/17/2026 03:45 PM	3.24	2.32
	Thursday 09/17/2026 03:30 PM	3.24	2.32
	Thursday 09/17/2026 03:15 PM	3.22	2.29
	Thursday 09/17/2026 03:00 PM	3.21	2.28
	Thursday 09/17/2026 02:45 PM	3.22	2.29
	Thursday 09/17/2026 02:30 PM	3.22	2.29
	Thursday 09/17/2026 02:15 PM	3.22	2.29
	Thursday 09/17/2026 02:00 PM	3.20	2.26
	Thursday 09/17/2026 01:45 PM	3.21	2.28
	Thursday 09/17/2026 01:30 PM	3.21	2.28
	Thursday 09/17/2026 01:15 PM	3.20	2.26
	Thursday 09/17/2026 01:00 PM	3.21	2.28
	Thursday 09/17/2026 12:45 PM	3.21	2.28
	Thursday 09/17/2026 12:30 PM	3.21	2.28
	Thursday 09/17/2026 12:15 PM	3.21	2.28
	Thursday 09/17/2026 12:00 PM	3.21	2.28
	Thursday 09/17/2026 11:45 AM	3.21	2.28
	Thursday 09/17/2026 11:30 AM	3.21	2.28
	Thursday 09/17/2026 11:15 AM	3.21	2.28

Data Courtesy of the National Water Prediction Service
Script Courtesy of Dennis at East Masonville Weather with mods by Saratoga-weather.org