Charles River At Medway flow report
As of July 13, 2026, Charles River At Medway is flowing at 37 cfs with a gage height of 1.03 ft, receding 25% over the past 24 hours. Source: USGS gauge #01103280, refreshed throughout the day.
Historical Data
Charles River At Medway at a glance
How Charles River At Medway is running right now, where it sits on the map, and the key gauge stats.
Charles River At Medway is flowing at 37 cfs, with the water sitting 1.03 ft at the gage. Flow is down 25% since yesterday as the gauge recedes.
This is USGS gauge #01103280 in Massachusetts. Over the past 10 days the average has been 50 cfs, peaking at 119 cfs.
Over the next 5 days, Charles River At Medway is expected to recede from today's 37 cfs, toward roughly 31 cfs by 2026-07-18 (likely range 9-110 cfs) -- drier than normal for the date.
For real-time updates and historical context, see the realtime view or the historical comparison. Browse other gauges in the Massachusetts flow report.
Streamflow Forecast
Powered by PULSE — Snoflo’s Predictive Unified Learning & Simulation Engine, which learns from how this river has answered every past storm, snowmelt, and dry spell to forecast where it’s headed with a precision generic models can’t match.
How does this compare to past years?
Year-over-year overlay, annual peak discharge, the full distribution of daily flows on record, and the gauge's rating curve.
Weather Forecast
Next 5 days, hour by hour
Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.
5-day forecast table
Every 3 hours, broken out across temperature, snow, rain, humidity, and wind.
| Time | Condition | Temp (°F) | Snow (in) | Rain (in) | Humidity (%) | Wind (mps) | Wind dir |
|---|---|---|---|---|---|---|---|
| Loading detailed forecast… | |||||||
15-day forecast
Daily temperatures, snow, and rain projected over the next two weeks.
Charles River At Medway
The flow is influenced by several constituents, including precipitation, snowmelt, and groundwater recharge. The stream gauge is located downstream of the Pratt's Mill Dam and the Chicken Brook, which are potential tributaries that can affect the river's flow. The hydrology of the river exhibits seasonal trends with higher flows during the spring due to snowmelt and rainfall. Interestingly, the Charles River Basin has been the site of many famous rowing events, including the Head of the Charles Regatta, which attracts thousands of visitors every year.
Nearby streamflow levels
Cross-check Charles River At Medway's discharge against nearby gauges to spot whether the change here is local or regional.
| Gauge | Streamflow |
|---|---|
| Charles River At Medway | 37 cfs |
| Neponset River At Norwood | 11 cfs |
| Charles River At Dover | 142 cfs |
| Blackstone River At Woonsocket | 252 cfs |
| West River Below West Hill Dam | 1 cfs |
| Lake Cochituate Outlet At Framingham | 11 cfs |
Nearby snowpack data
Snowpack at SNOTEL stations near Charles River At Medway. Spring snowmelt is the dominant driver of streamflow in mountain basins -- a deep snowpack upstream means more runoff later in the season.
| SNOTEL station | Snowpack |
|---|---|
| Milford | 0 in |
| Sherborn 1.1 Nw | 0 in |
| Walpole 2 | 0 in |
| Foxborough 3.1 E | 0 in |
| Blue Hill Coop | 0 in |
| Norton West | 0 in |
River levels & flood safety
- Read the level before you go
- A river that's runnable at one flow can be deadly at another. Check current discharge and gage height — like the values shown above — against the flood-stage thresholds, and remember levels can spike fast after rain or a dam release.
- Respect cold water
- Snowmelt rivers run cold even in summer. Sudden immersion triggers cold-water shock and saps strength within minutes. Wear a PFD, dress for the water temperature (not the air), and never wade or paddle alone.
- Watch for swiftwater hazards
- Strainers (downed trees), undercut rocks, and low-head dams are the deadliest features on moving water. High, fast, muddy water hides them. If in doubt, scout from shore and portage.
- Mind flash floods & releases
- Narrow canyons can flood from a storm miles upstream, and dam-controlled reaches can rise without warning. Know the forecast, the release schedule, and your exit before you launch.
Track Charles River At Medway in the Snoflo app
Save this gauge as a favorite, set push alerts when streamflow crosses a threshold (e.g. "alert me when Charles River At Medway crosses 5,000 cfs"), and Snoflo's iOS app will push the moment USGS reports the crossing.
About Charles River At Medway
Where does the streamflow data for Charles River At Medway come from?
Discharge, gage height, and water temperature come directly from the USGS streamflow gauge 01103280. Snoflo refreshes the time series throughout the day. Forecasts come from the NOAA / yr.no feed Snoflo's iOS app uses.
How often is the report updated?
USGS gauges report continuously (typically every 15 minutes). Snoflo pulls fresh values throughout the day — look for the "as of" timestamp on the streamflow hero card.
What's the difference between discharge and gage height?
Discharge (cubic feet per second, or cfs) is the volume of water flowing past the gauge each second. Gage height is how high the water sits at the gauge (feet). They're related by a rating curve specific to each gauge — higher water means more flow, but the exact ratio depends on channel shape.
How is "percent of median" calculated?
Today's discharge is compared to the historical median discharge on this calendar day across the gauge's full record. 100% = right on median; 200% = a very high year; 30% = a drought-level low.
What are flood stages, and is this river safe right now?
Flood stages are NWS-defined gage-height thresholds — Action, Minor, Moderate, Major — marking when nearby roads or floodplains start to be affected. "Safe" depends on your activity and skill: a level that's a fun paddle for an expert can be lethal for a wader. Always check the current level against the thresholds above and the safety links, and when in doubt, stay off the water.
Can I get alerts when Charles River At Medway rises?
Yes — flow alerts are managed in the Snoflo iOS app. Favorite this gauge, set a streamflow threshold (e.g. "alert me when discharge crosses 5,000 cfs"), and you'll get a push the moment USGS reports the crossing.
Access the free Charles River At Medway report
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