Western Flows

Madison River Above Powerplant

Near Mcallister, MT Stream Gauge USGS: 06040800 Provisional Data Last Updated: May 26, 09:44 PM PT

Current Flow

232 cfs
Steady
No Water Temp Probe

Expected Weather

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

Location

Flow is within the typical range for this time of year (25th–75th percentile, based on 24 years of USGS record).

System Insights

  • Flow is below average with 56% chance of precipitation in the next 48 hours. Some recovery in levels is possible.

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

Today's Weather

Forecast Details

Morning

At 6 AM: 45°F and Clear, wind NE at 2 mph. By 10 AM: 61°F and Overcast, wind SW at 8 mph.

Afternoon/Evening

At 2 PM: 72°F and Overcast, wind S at 6 mph. By 6 PM: 67°F and Drizzle, wind S at 28 mph.

Overnight

Dropping from 60°F at 10 PM to 57°F by 4 AM. Conditions Clear with wind N at 0 mph.

3-Day Outlook

🌔 Waxing Gibbous

Today, May 26

🌧️

73° / 45°

Chance of Rain: 56%
5:45 AM 9:02 PM

Wednesday, May 27

☁️

82° / 53°

Chance of Rain: 16%
5:44 AM 9:03 PM

Thursday, May 28

🌧️

80° / 60°

Chance of Rain: 10%
5:43 AM 9:04 PM

7-Day Flow History

Source: USGS

The current cfs of 232 CFS is running severely below the historical median of 1,020 CFS for this date, indicating lower-than-average seasonal water levels.

Current (CFS)
Historical Median
Normal Range (p25–p75)

7-Day Water Temperature (°F)

Source: USGS

Temperature Data Unavailable

The USGS does not maintain an active temperature probe at this gauge location.

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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.