2026-02-16T18:00:00-07:00
...PROLONGED PERIOD OF CRITICAL FIRE WEATHER CONDITIONS SUNDAY THROUGH MID NEXT WEEK... ...EXTREMELY CRITICAL FIRE WEATHER CONDITIONS POSSIBLE TUESDAY... .Recent dry conditions combining with above normal temperatures and periods of gusty winds will bring potentially critical fire weather conditions Sunday and Monday to parts of the eastern Colorado Plains. Stronger, more widespread westerly winds are expected to develop Tuesday, possibly producing extremely critical fire weather conditions with wind gusts as high as 65 mph across the plains. * AFFECTED AREA...Fire Weather Zones 216, 240, 241, 244, 245 and 247. * TIMING...For the first Fire Weather Watch, from Monday morning through Monday afternoon. For the second Fire Weather Watch, from Tuesday morning through Tuesday evening. * WINDS...Southwest winds 10 to 20 mph with gusts to 30 mph on Monday. West winds 30 to 40 mph with gusts up to 60 mph on Tuesday. * RELATIVE HUMIDITY...As low as 12 percent each afternoon. * IMPACTS...Conditions will be favorable for rapid fire spread. Avoid outdoor burning and any activity that may produce a spark and start a wildfire.
Summary
Total streamflow across the
Boulder River
was last observed at
185
cfs, and is expected to yield approximately
368
acre-ft of water today; about 95%
of normal.
Average streamflow for this time of year is
196 cfs,
with recent peaks last observed
on
2011-07-01 when daily discharge volume was observed at
9,175 cfs.
Maximum discharge along the river is currently at the
Boulder River At Big Timber Mt
reporting a streamflow rate of 157 cfs.
However, the streamgauge with the highest stage along the river is the
Boulder River Near Boulder Mt
with a gauge stage of 5.07 ft.
This river is monitored from 2 different streamgauging stations along the Boulder River, the highest being situated at an altitude of 4,823 ft, the
Boulder River Near Boulder Mt.
15-Day Weather Outlook
River Details
| Last Updated | 2026-02-15 |
| Discharge Volume | 368 ACRE-FT |
| Streamflow |
185.3 cfs
+1.5 cfs (+0.82%) |
| Percent of Normal | 94.65% |
| Maximum |
9,175.0 cfs
2011-07-01 |
| Seasonal Avg | 196 cfs |
River Streamflow Levels
| Streamgauge | Streamflow | Gauge Stage | 24hr Change (%) | % Normal | Minimum (cfs) | Maximum (cfs) | Air Temp | Elevation |
|---|---|---|---|---|---|---|---|---|
|
Boulder River Near Boulder Mt
USGS 06033000 |
28 cfs | 5.07 ft | 5.6 | |||||
|
Boulder River At Big Timber Mt
USGS 06200000 |
157 cfs | 1.31 ft | 0 |
Seasonal Discharge Comparison
Maximum Streamflow Discharge
Streamflow Elevation Profile
The Boulder River is a 77-mile (124 km) tributary of the Jefferson River in southwestern Montana in the United States.It rises in the Rocky Mountains at the continental divide in the Beaverhead-Deerlodge National Forest in western Jefferson County. It flows east and southeast through the mountains past Boulder, then south to join the Jefferson near Cardwell.Game fish in the river include brook, brown, and rainbow trout, and mountain whitefish. Brown trout are most prevalent in the last 2 miles (3 km), near the mouth, and the other three species are more prevalent in the reach upstream of the town of Boulder. The lowermost 12 miles (19 km) of the river is affected by irrigation withdrawals, and the reach below the community of Basin is affected by seepage from old mines and tailings.