Is the Sun River flooding?
The Sun River is tracked by 4 USGS streamgauges in Montana. This page compares each gauge’s live water level against its official National Weather Service flood stage, refreshed every 15 minutes, so you can tell whether the Sun River is running normal, rising toward flood stage, or already flooding. 2 of 4 gauges have both a usable water-level reading and a published minor flood stage. Gauges without a published flood stage show water level and flow only. For nearby rivers, see all Montana river levels.
River facts
The longest-running gauge on this river is Sun River near Vaughn MT. The highest level ever recorded there was 23.40 ft on 9 June 1964, carrying 53,500 cfs. Peak records there go back to 1934 (92 annual peaks). It is currently at 2.63 ft, 20.8 ft below that record.
| Gauge | Status | Stage | Flood stage | Updated |
|---|---|---|---|---|
| Sun River at Simms MT | No flooding | 2.80 ft | 7.5 ft | |
| Sun River near Vaughn MT | No flooding | 2.63 ft | 6 ft | |
| Sun River below Diversion Dam near Augusta MT | No flood stage defined | 3.98 ft | — | |
| Sun River below Willow Creek near Augusta MT | No flood stage defined | 2.10 ft | — |