River Conditions
Illustrated map of Flathead Lake

River stage

Polson, Flathead River

River level
5.45 ft
Status
Below flood stage
7-day change
+0.01 ft
Recent high
12.09 ft
Recent low
4.28 ft

Last reported 2026-10-13 | NWS FPOM8

30-day change
+0.77 ft
Average
6.34 ft
Readings
122
Data span
122 days
Record crest
21.00 ft

In brief

The Flathead River at Polson, MT read 5.45 ft on Oct 13, 2026, 12.55 ft below minor flood stage. That is 0.77 ft higher than 30 days earlier.

Source: National Weather Service gauge FPOM8

Water 55 °F (13 °C) · -2 °F in 24 hours

River level timeline

4.44.85.15.45.7SEP 13SEP 18SEP 23SEP 28OCT 03OCT 08OCT 13HIGH 5.48LOW 4.685.47 ftLAST READING

Stage threshold profile

Minor flooding 18.00 ft CURRENT 5.45 ft

Highest crests on record

RankCrestDate
1 21.00 ft 1894-06-01
2 19.30 ft 1980-05-26
3 19.15 ft 1948-06-06
4 17.99 ft 1951-06-16
5 17.99 ft 1964-06-12
6 17.45 ft 1958-05-26
7 17.20 ft 1928-05-29
8 17.04 ft 1945-06-03

Flood crests recorded at this gauge by the National Weather Service.

What happens at each level

  1. 18.00 ft

    Flooding to agricultural land in the vicinity of Dixon. Cattle may be stranded in low lying areas next to the river.

Written by the local National Weather Service forecast office for this exact gauge.

Frequently asked questions

Is the Flathead River flooding at Polson?

No. The Flathead River at Polson is at 5.45 ft, 12.55 ft below minor flood stage.

What is the flood stage at Polson?

Minor flooding 18 ft is the first threshold.

What is the highest the Flathead River has been at Polson?

The highest crest on record is 21.0 ft, on 1894-06-01.

Is the Flathead River high or low right now at Polson?

At 5.45 ft it is higher than 57% of readings over the last 122 days.

How warm is the water at Polson, Flathead River?

The water temperature at Polson, Flathead River is 55 °F (12.9 °C), measured 6:45 pm by USGS. It has fallen 1.5 °F in the last 24 hours.

Stage and flood information from the NOAA National Weather Service (gauge FPOM8); daily history from the U.S. Geological Survey (site 12372000). Last reading 2026-10-13. For flood safety decisions always follow official National Weather Service warnings.