Missouri River at Fort Benton

Last updated: Jun 22, 2025, 5:43 AM UTC

No watches, warnings or advisories are in effect for this area.

Warning: no valid ratings curve available. Transformations to and from FEET/CFS/KCFS will not happen.

US Geological Survey
Observations courtesy of U.S. Geological Survey

Scale to Flood Categories

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Traces and Thresholds Click to turn on/off display

Observed (OBS) 06/21/2025 10:30 PM MDT

Record: 18.5 ft

CATEGORY STAGE

Major Flooding 17 ft

Moderate Flooding 15 ft

Minor Flooding 13.5 ft

Action 13 ft

Reliability of the Forecast:

NOTE: Forecasts are issued routinely during the warm season, and as needed at other times of the year.
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	CATEGORY	STAGE
	Major Flooding	17 ft
	Moderate Flooding	15 ft
	Minor Flooding	13.5 ft
	Action	13 ft

Flood Impacts 🅘

18.5 - Inundation of Main, Franklin, and Washington Streets and all thoroughfares in between these and river.
13.5 - Front Street floods.
13 - Minor flooding of sidewalk along left bank of river.

Gauge Info

Coordinates	47.8169, -110.666
RFC	MBRFC
State	MT
WFO	TFX
County	Chouteau
Data Provider(s)
US Geological Survey	USGS--Water Resources of the United States
USGS	06090800

Gauge Location

Recent Crests

1.	5.26 ft	on 06-02-2014
2.	4.96 ft	on 06-05-2013
3.	11.23 ft	on 01-15-2013
4.	5.28 ft	on 06-08-2012
5.	10.69 ft	on 01-24-2012

Historic Crests

1.	18.50 ft	on 06-06-1908
2.	16.39 ft	on 02-09-1996
3.	14.37 ft	on 01-12-1968
4.	14.14 ft	on 01-11-1973
5.	14.00 ft	on 01-15-1974

Low Water Records

(P) - Preliminary values subject to further review
¹ - Gauge datum changed during this year

Vertical Datum Table

type	NGVD29
major Flooding	2631.05 ft
moderate Flooding	2629.05 ft
minor Flooding	2627.55 ft
action	2627.05 ft
Latest Value	2616.44 ft
Gauge Zero	2614.05 ft

Gauge Photos

Photo 1 of 4

Missouri River at Fort Benton - Historic Bridge next to gauge house

Probability Information

Photo 1 of 3

Weekly Chance of Exceeding Levels
- About this graph
Chance of Exceeding Levels During Entire Period
- About this graph
Short Range Forecast Uncertainty
About this graph | Product Description Document

Collaborative Agencies

The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here.

Resources

Hydrologic Resource Links

Additional Resource Links

WFO Information

Weather Forecast Office

Great Falls

5324 Tri-Hill Frontage Rd

Great Falls, MT 59404-4933

(406) 453-2081

Ask Questions/Webmaster

Official Homepage

1.	5.26 ft	on 06-02-2014
2.	4.96 ft	on 06-05-2013
3.	11.23 ft	on 01-15-2013
4.	5.28 ft	on 06-08-2012
5.	10.69 ft	on 01-24-2012
6.	10.71 ft	on 06-10-2011
7.	11.79 ft	on 01-13-2011
8.	7.63 ft	on 06-18-2010
9.	5.94 ft	on 06-02-2009
10.	7.75 ft	on 05-27-2008
11.	4.72 ft	on 06-08-2007
12.	9.04 ft	on 11-30-2006
13.	5.85 ft	on 06-11-2006
14.	5.30 ft	on 06-05-2005
15.	8.77 ft	on 01-21-2005
16.	3.39 ft	on 05-28-2004
17.	9.18 ft	on 02-02-2004
18.	4.72 ft	on 05-31-2003
19.	12.39 ft	on 03-12-2003
20.	5.11 ft	on 06-12-2002
21.	9.81 ft	on 01-31-2002
22.	2.74 ft	on 05-01-2001
23.	6.43 ft	on 12-17-2000
24.	3.13 ft	on 02-24-2000
25.	5.86 ft	on 06-07-1999
26.	8.80 ft	on 01-01-1999
27.	7.64 ft	on 07-04-1998
28.	9.01 ft	on 01-12-1998
29.	8.94 ft	on 06-13-1997
30.	13.12 ft	on 01-01-1997
31.	7.68 ft	on 06-16-1996
32.	16.39 ft	on 02-09-1996
33.	7.37 ft	on 06-08-1995
34.	9.28 ft	on 01-07-1995
35.	4.96 ft	on 04-24-1994
36.	12.97 ft	on 02-26-1994
37.	6.46 ft	on 06-18-1993
38.	9.77 ft	on 02-25-1993
39.	3.23 ft	on 01-10-1992
40.	6.66 ft	on 06-13-1991
41.	7.23 ft	on 02-03-1991
42.	5.06 ft	on 05-31-1990
43.	11.12 ft	on 12-23-1989
44.	5.14 ft	on 05-11-1989
45.	8.18 ft	on 01-09-1989
46.	3.30 ft	on 05-09-1988
47.	4.25 ft	on 01-12-1987
48.	6.05 ft	on 02-26-1986
49.	12.41 ft	on 12-02-1985
50.	4.10 ft	on 10-03-1984
51.	7.02 ft	on 06-24-1984
52.	13.64 ft	on 01-30-1984
53.	6.60 ft	on 07-11-1983
54.	7.51 ft	on 07-03-1982
55.	10.57 ft	on 05-24-1981
56.	7.35 ft	on 05-27-1980
57.	10.04 ft	on 01-12-1980
58.	5.97 ft	on 05-26-1979
59.	12.30 ft	on 01-03-1979
60.	6.52 ft	on 05-20-1978
61.	4.08 ft	on 10-18-1976
62.	8.21 ft	on 05-07-1976
63.	9.77 ft	on 03-05-1976
64.	11.85 ft	on 06-21-1975
65.	7.53 ft	on 06-20-1974
66.	14.00 ft	on 01-15-1974
67.	14.14 ft	on 01-11-1973
68.	4.74 ft	on 11-07-1972
69.	6.68 ft	on 06-04-1972
70.	13.26 ft	on 03-03-1972
71.	7.07 ft	on 05-14-1971
72.	12.02 ft	on 01-14-1971
73.	7.35 ft	on 06-15-1970
74.	13.53 ft	on 01-18-1970
75.	7.40 ft	on 06-28-1969
76.	11.30 ft	on 01-04-1969
77.	7.46 ft	on 06-13-1968
78.	14.37 ft	on 01-12-1968
79.	8.93 ft	on 06-15-1967
80.	11.06 ft	on 01-10-1966
81.	5.57 ft	on 10-16-1965
82.	7.86 ft	on 06-17-1965
83.	9.80 ft	on 12-23-1964
84.	13.44 ft	on 06-10-1964
85.	12.78 ft	on 02-06-1963
86.	10.78 ft	on 01-10-1962
87.	3.91 ft	on 06-01-1961
88.	11.46 ft	on 03-06-1960
89.	12.22 ft	on 01-27-1959
90.	6.13 ft	on 06-14-1958
91.	13.25 ft	on 12-09-1956
92.	7.86 ft	on 06-04-1956
93.	13.25 ft	on 01-09-1956
94.	12.65 ft	on 03-07-1955
95.	11.20 ft	on 01-19-1954
96.	13.57 ft	on 06-05-1953
97.	10.62 ft	on 12-20-1951
98.	9.56 ft	on 01-31-1951
99.	12.89 ft	on 12-24-1949
100.	12.98 ft	on 01-13-1949
101.	10.93 ft	on 06-07-1948
102.	11.90 ft	on 02-04-1947
103.	5.62 ft	on 06-06-1946
104.	6.57 ft	on 06-14-1945
105.	7.70 ft	on 06-19-1944
106.	9.00 ft	on 01-29-1943
107.	8.75 ft	on 01-02-1942
108.	10.72 ft	on 01-27-1941
109.	10.33 ft	on 01-09-1940
110.	8.61 ft	on 02-15-1939
111.	7.20 ft	on 06-24-1938
112.	3.56 ft	on 07-13-1937
113.	9.10 ft	on 01-10-1936
114.	5.14 ft	on 06-15-1935
115.	12.21 ft	on 01-03-1934
116.	6.49 ft	on 06-10-1933
117.	5.95 ft	on 06-13-1932
118.	4.00 ft	on 02-01-1931
119.	4.80 ft	on 04-13-1930
120.	5.65 ft	on 06-02-1929
121.	7.65 ft	on 05-28-1928
122.	10.30 ft	on 06-13-1927
123.	5.45 ft	on 04-21-1926
124.	7.05 ft	on 05-25-1925
125.	6.13 ft	on 05-21-1924
126.	18.50 ft	on 06-06-1908

1.	18.50 ft	on 06-06-1908
2.	16.39 ft	on 02-09-1996
3.	14.37 ft	on 01-12-1968
4.	14.14 ft	on 01-11-1973
5.	14.00 ft	on 01-15-1974
6.	13.64 ft	on 01-30-1984
7.	13.57 ft	on 06-05-1953
8.	13.53 ft	on 01-18-1970
9.	13.44 ft	on 06-10-1964
10.	13.26 ft	on 03-03-1972
11.	13.25 ft	on 01-09-1956
12.	13.25 ft	on 12-09-1956
13.	13.12 ft	on 01-01-1997
14.	12.98 ft	on 01-13-1949
15.	12.97 ft	on 02-26-1994
16.	12.89 ft	on 12-24-1949
17.	12.78 ft	on 02-06-1963
18.	12.65 ft	on 03-07-1955
19.	12.41 ft	on 12-02-1985
20.	12.39 ft	on 03-12-2003
21.	12.30 ft	on 01-03-1979
22.	12.22 ft	on 01-27-1959
23.	12.21 ft	on 01-03-1934
24.	12.02 ft	on 01-14-1971
25.	11.90 ft	on 02-04-1947
26.	11.85 ft	on 06-21-1975
27.	11.79 ft	on 01-13-2011
28.	11.46 ft	on 03-06-1960
29.	11.30 ft	on 01-04-1969
30.	11.23 ft	on 01-15-2013
31.	11.20 ft	on 01-19-1954
32.	11.12 ft	on 12-23-1989
33.	11.06 ft	on 01-10-1966
34.	10.93 ft	on 06-07-1948
35.	10.78 ft	on 01-10-1962
36.	10.72 ft	on 01-27-1941
37.	10.71 ft	on 06-10-2011
38.	10.69 ft	on 01-24-2012
39.	10.62 ft	on 12-20-1951
40.	10.57 ft	on 05-24-1981
41.	10.33 ft	on 01-09-1940
42.	10.30 ft	on 06-13-1927
43.	10.04 ft	on 01-12-1980
44.	9.81 ft	on 01-31-2002
45.	9.80 ft	on 12-23-1964
46.	9.77 ft	on 03-05-1976
47.	9.77 ft	on 02-25-1993
48.	9.56 ft	on 01-31-1951
49.	9.28 ft	on 01-07-1995
50.	9.18 ft	on 02-02-2004
51.	9.10 ft	on 01-10-1936
52.	9.04 ft	on 11-30-2006
53.	9.01 ft	on 01-12-1998
54.	9.00 ft	on 01-29-1943
55.	8.94 ft	on 06-13-1997
56.	8.93 ft	on 06-15-1967
57.	8.80 ft	on 01-01-1999
58.	8.77 ft	on 01-21-2005
59.	8.75 ft	on 01-02-1942
60.	8.61 ft	on 02-15-1939
61.	8.21 ft	on 05-07-1976
62.	8.18 ft	on 01-09-1989
63.	7.86 ft	on 06-04-1956
64.	7.86 ft	on 06-17-1965
65.	7.75 ft	on 05-27-2008
66.	7.70 ft	on 06-19-1944
67.	7.68 ft	on 06-16-1996
68.	7.65 ft	on 05-28-1928
69.	7.64 ft	on 07-04-1998
70.	7.63 ft	on 06-18-2010
71.	7.53 ft	on 06-20-1974
72.	7.51 ft	on 07-03-1982
73.	7.46 ft	on 06-13-1968
74.	7.40 ft	on 06-28-1969
75.	7.37 ft	on 06-08-1995
76.	7.35 ft	on 05-27-1980
77.	7.35 ft	on 06-15-1970
78.	7.23 ft	on 02-03-1991
79.	7.20 ft	on 06-24-1938
80.	7.07 ft	on 05-14-1971
81.	7.05 ft	on 05-25-1925
82.	7.02 ft	on 06-24-1984
83.	6.68 ft	on 06-04-1972
84.	6.66 ft	on 06-13-1991
85.	6.60 ft	on 07-11-1983
86.	6.57 ft	on 06-14-1945
87.	6.52 ft	on 05-20-1978
88.	6.49 ft	on 06-10-1933
89.	6.46 ft	on 06-18-1993
90.	6.43 ft	on 12-17-2000
91.	6.13 ft	on 06-14-1958
92.	6.13 ft	on 05-21-1924
93.	6.05 ft	on 02-26-1986
94.	5.97 ft	on 05-26-1979
95.	5.95 ft	on 06-13-1932
96.	5.94 ft	on 06-02-2009
97.	5.86 ft	on 06-07-1999
98.	5.85 ft	on 06-11-2006
99.	5.65 ft	on 06-02-1929
100.	5.62 ft	on 06-06-1946
101.	5.57 ft	on 10-16-1965
102.	5.45 ft	on 04-21-1926
103.	5.30 ft	on 06-05-2005
104.	5.28 ft	on 06-08-2012
105.	5.26 ft	on 06-02-2014
106.	5.14 ft	on 05-11-1989
107.	5.14 ft	on 06-15-1935
108.	5.11 ft	on 06-12-2002
109.	5.06 ft	on 05-31-1990
110.	4.96 ft	on 06-05-2013
111.	4.96 ft	on 04-24-1994
112.	4.80 ft	on 04-13-1930
113.	4.74 ft	on 11-07-1972
114.	4.72 ft	on 06-08-2007
115.	4.72 ft	on 05-31-2003
116.	4.25 ft	on 01-12-1987
117.	4.10 ft	on 10-03-1984
118.	4.08 ft	on 10-18-1976
119.	4.00 ft	on 02-01-1931
120.	3.91 ft	on 06-01-1961
121.	3.56 ft	on 07-13-1937
122.	3.39 ft	on 05-28-2004
123.	3.30 ft	on 05-09-1988
124.	3.23 ft	on 01-10-1992
125.	3.13 ft	on 02-24-2000
126.	2.74 ft	on 05-01-2001