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2026-04-03T19:00:00-06:00

The National Weather Service in Denver has issued a Red Flag Warning for wind and low relative humidity, which is in effect from 8 AM to 7 PM MDT Friday. * AFFECTED AREA...Fire Weather Zones 238, 239, 240, 241, 242, 243, 244, 245, 248, 249, 250 and 251. * TIMING...From 8 AM to 7 PM MDT Friday. * WINDS...Northwest 20 to 35 mph, with gusts around 45 mph. Gusts as high as 60 mph near the foothills of Boulder and Larimer Counties. * RELATIVE HUMIDITY...As low as 16 percent. * IMPACTS...Conditions will be favorable for rapid fire spread. Avoid outdoor burning and any activity that may produce a spark and start a wildfire.


Tongue River River Levels

Last Updated: April 2, 2026

The Tongue River is a 265-mile-long river that flows through Wyoming and Montana.


Summary

Total streamflow across the Tongue River was last observed at 213 cfs, and is expected to yield approximately 422 acre-ft of water today; about 15% of normal. River levels are low and may signify a drought. Average streamflow for this time of year is 1,384 cfs, with recent peaks last observed on 2019-05-31 when daily discharge volume was observed at 24,742 cfs.

Maximum discharge along the river is currently at the Tongue River At Monarch reporting a streamflow rate of 383 cfs. However, the streamgauge with the highest stage along the river is the Tongue River At Tongue R Dam Nr Decker Mt with a gauge stage of 10.34 ft. This river is monitored from 8 different streamgauging stations along the Tongue River, the highest being situated at an altitude of 4,072 ft, the Tongue River Near Dayton.




15-Day Weather Outlook


River Details

Last Updated 2026-04-02
Discharge Volume 422 ACRE-FT
Streamflow 213.0 cfs
0.0 cfs (0.0%)
Percent of Normal 15.39%
Maximum 24,742.0 cfs
2019-05-31
Seasonal Avg 1,384 cfs
       
River Streamflow Levels
Streamgauge Streamflow Gauge Stage 24hr Change (%) % Normal Minimum (cfs) Maximum (cfs) Air Temp Elevation
Tongue River Near Dayton
USGS 06298000
48 cfs 1.73 ft 0
Tongue River At Monarch
USGS 06299980
383 cfs 3.36 ft
Tongue River At State Line Nr Decker Mt
USGS 06306300
213 cfs 2.65 ft 0
Tongue River At Tongue R Dam Nr Decker Mt
USGS 06307500
94 cfs 10.34 ft 0
Tongue R At Birney Day School Br Nr Birney Mt
USGS 06307616
92 cfs 0.91 ft -2.45
Tongue R Bl Brandenberg Bridge Nr Ashland Mt
USGS 06307830
106 cfs 2.54 ft 0
Tongue River At Miles City Mt
USGS 06308500
114 cfs 1.7 ft 0
Tongue River At Akra
USGS 05101000
71 cfs 8.17 ft -17.5
Seasonal Discharge Comparison
Maximum Streamflow Discharge
Streamflow Elevation Profile

The Tongue River is a 90.4-mile-long (145.5 km) tributary of the Pembina River in northeastern North Dakota in the United States. It drains an area of the prairie country near the Canada–US border in the extreme northeast corner of the state in the watershed of the Red River.
It rises in eastern Cavalier County and flows in a direct course east-northeast into Pembina County, passing the towns of Cavalier, Neche and Bathgate. It joins the Pembina from the south approximately 2 miles (3 km) upstream from the mouth of the Pembina on the Red River.
Upstream of Cavalier, the river passes through Icelandic State Park, where Renwick Dam causes it to form Lake Renwick. Below the dam, foot trails follow the river in the Gunlogson Arboretum Nature Preserve.