Waterlands
St. Mary River
USGS · 05020500
ST. MARY RIVER
USGS · 05020500LIVE

St. Mary R nr Int'l Boundary, MT

CARDSTON COUNTY, AB49.0119°N, -113.2992°W Updated 1 hr ago
FLOW RATE
1,535cfs
AIR TEMP
75°F
WIND
6mph W
FISH INDEX
81SCORE / 100
GREAT · 4 OF 5
Flow Rate Historical Avg
MEDIAN FLOW RATE · 1 YEAR
1,535cfs 49.4% vs avg
Optimal band: 422–570 cfs
PERIOD HIGH
4,879cfs
PERIOD LOW
94cfs
RUNNABLE
11%
last 1 year in band
Precipitation History
Your History · St. Mary R nr Int'l Boundary, MT

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Weather Conditions
WEATHER CONDITIONS
TODAY
77°
55°
WED
81°
57°
THU
76°
55°
FRI
77°
52°
SAT
82°
57°
SUN
81°
57°
MON
87°
52°
TIME
WED
2
NOW
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
THU
12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
FRI
12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
SAT
12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
SUN
12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
TEMP
hourly forecast
59°
mild
59°
58°
57°
58°
57°
57°
63°
69°
74°
76°
73°
78°
79°
79°
80°
81°
80°
78°
74°
70°
65°
62°
60°
59°
58°
58°
56°
55°
55°
57°
60°
66°
70°
72°
73°
74°
75°
76°
76°
76°
76°
74°
70°
65°
62°
60°
58°
57°
57°
56°
54°
52°
52°
57°
62°
67°
71°
72°
74°
75°
76°
77°
77°
77°
77°
76°
74°
69°
64°
61°
60°
58°
58°
58°
57°
57°
57°
59°
64°
70°
74°
76°
79°
81°
82°
82°
82°
82°
81°
79°
75°
69°
65°
62°
61°
61°
62°
60°
59°
58°
57°
59°
64°
68°
70°
73°
74°
76°
78°
79°
80°
81°
80°
WIND
mph · gust · dir
7mph WSW
G 13 mph
7
G13
WSW
8
G13
W
8
G13
W
7
G13
WSW
6
G12
WSW
9
G17
WSW
9
G15
WSW
9
G14
SW
7
G16
WSW
11
G17
WSW
10
G22
W
12
G19
W
13
G22
WSW
15
G24
WSW
15
G27
SW
13
G25
WSW
13
G23
W
13
G22
W
8
G19
W
7
G10
WNW
8
G13
W
7
G9
WSW
7
G9
WSW
7
G9
W
7
G8
WNW
7
G9
NW
7
WNW
6
WNW
4
WNW
4
W
3
NW
5
G11
SW
9
G17
WSW
13
G18
WSW
13
G18
WSW
14
G20
SW
18
G23
SW
17
G23
SW
13
G21
WSW
14
G20
WSW
13
G19
WSW
11
G19
SW
7
G15
SW
7
G8
SW
9
SW
10
G11
SW
10
SW
9
SW
9
G11
SW
8
WSW
4
G5
W
3
G4
W
3
G4
W
2
G3
SW
3
G6
SW
4
G9
SW
8
G11
SW
7
G10
SW
8
G12
SSW
11
G15
SW
12
G15
SW
13
G17
SW
14
G18
SSW
16
G19
SSW
13
G19
SSW
10
G17
SSW
8
G11
S
9
G10
S
10
SSW
9
SSW
9
SSW
10
SSW
10
SSW
10
G11
SSW
10
G11
SSW
10
SSW
10
G11
SSW
9
G11
SSW
9
G14
SSW
9
G13
SSW
11
G13
S
11
G19
S
12
G25
SSW
13
G31
SW
14
G34
SW
19
G34
SW
21
G35
SW
21
G36
SW
19
G37
SW
15
G32
SW
13
G27
SW
14
G31
SW
13
G32
SW
12
G28
SW
11
G26
SW
11
G24
SW
12
G24
SW
11
G20
SW
10
G19
SW
9
G17
SW
9
G13
SSW
8
G13
SSW
11
G29
SW
15
G34
SW
19
G36
WSW
19
G33
WSW
16
G29
WSW
15
G26
WSW
13
G23
WSW
11
G20
WSW
9
G17
WSW
8
G15
WSW
6
G13
WSW
PRECIP
chance %
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
1%
1%
1%
2%
2%
1%
1%
1%
1%
0%
0%
0%
0%
0%
0%
0%
0%
0%
1%
1%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
1%
1%
1%
1%
1%
1%
2%
2%
2%
2%
2%
2%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
CLOUDS
cover %
0%
clear
0%
0%
0%
2%
94%
9%
0%
1%
95%
96%
100%
100%
100%
100%
100%
99%
92%
25%
97%
86%
6%
9%
2%
0%
8%
40%
76%
96%
100%
100%
100%
100%
100%
100%
100%
100%
100%
97%
40%
13%
14%
18%
100%
67%
55%
17%
12%
11%
9%
8%
5%
0%
1%
0%
0%
0%
0%
0%
0%
0%
0%
6%
0%
11%
5%
5%
5%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
8%
8%
8%
7%
6%
0%
7%
6%
6%
0%
0%
0%
0%
0%
10%
92%
6%
0%
0%
0%
0%
0%
1%
3%
4%
4%
3%
2%
PRESSURE
hPa · trend
875
875876879875874874870870871873872870871873872871871873876
TemperatureWind / GustsPrecipitationCloud coverPressure
Nowscroll →
FISH INDEX
81
Temperature
Warm
Wind
Light
Pressure
Falling — Active
Moon Phase
Good
DAYLIGHT
SUNRISE
05:37 AM
SUNSET
09:38 PM
16H 1M OF DAYLIGHT
MOON PHASE
Last Quarter
43% illuminated

Station Location

49.0119, -113.2992
Loading map…
DATA · USGS · NOAA · NWSUPDATED 2026-07-08 00:00 UTC
Site #05020500·USGS

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