Western Flows

San Joaquin River Ab Merced River

Near Newman USGS: 11273400 Provisional Data Last Updated: May 24, 09:56 PM PT

Current Flow

298.0 cfs
Steady

Water Temp

79.3 °F
Danger (68°F+)

Expected Weather

Temp --°F
Wind -- mph
Rain Chance --%
Pressure -- hPa

Location

Basin: Middle San Joaquin-Lower Chowchilla County: Stanislaus Elevation: 3 ft Drainage Area: 7,949.0 mi²

System Insights

  • Water temperature is 79°F — above the 68°F threshold.

  • Real-time flow is running well below current model projections. Conditions may be changing faster than the forecast anticipated.

Verify access, permits, and local conditions before entering any waterway.

Today's Weather

Forecast Details

Morning

At 6 AM: 55°F and Mainly Clear, wind N at 8 mph. By 10 AM: 68°F and Clear, wind SE at 2 mph.

Afternoon/Evening

At 2 PM: 84°F and Clear, wind N at 5 mph. By 6 PM: 85°F and Clear, wind N at 8 mph.

Overnight

Dropping from 67°F at 10 PM to 55°F by 4 AM. Conditions Clear with wind NW at 4 mph.

3-Day Outlook

🌓 First Quarter

Today, May 24

85° / 55°

Chance of Rain: 0%
5:48 AM 8:13 PM

Monday, May 25

☁️

83° / 52°

Chance of Rain: 0%
5:47 AM 8:13 PM

Tuesday, May 26

☁️

75° / 50°

Chance of Rain: 1%
5:47 AM 8:14 PM

Flow Trend & 7-Day Forecast

Source: USGS

The current cfs of 298 CFS is running near the historical median of 240 CFS for this date, indicating average seasonal water levels.

Current (CFS)
7-Day Forecast
Historical Median

7-Day Water Temperature (°F)

Source: USGS
Current (°F)
Historical Median
68°F Threshold

Planning a Trip?

Recommended gear for your next river adventure. Affiliate links — we may earn a commission.

Glossary & Methodology

Cubic Feet per Second (CFS)

The standard measure for streamflow. One CFS is equal to one cubic foot of water flowing past a specific point in one second (about 7.48 gallons).

Acre-Foot (AF)

The volume of water needed to cover one acre of land to a depth of one foot. One acre-foot is exactly 325,851 gallons.

Snow Water Equivalent (SWE)

The amount of water contained within the snowpack. It can be thought of as the depth of water that would theoretically result if you melted the entire snowpack instantaneously.

Data Sources

Live metrics and historical medians are aggregated directly from the US Geological Survey (USGS), California Data Exchange Center (CDEC), and National Resources Conservation Service (NRCS). Daily flow statistics represent provisional records and are subject to agency revision.