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

St. Mary R nr Int'l Boundary, MT

MONTANA49.0119°N, -113.2992°W Updated 48 min ago
FLOW RATE
1,533cfs
AIR TEMP
71°F
WIND
10mph NNE
FISH INDEX
75SCORE / 100
GREAT · 4 OF 5
Flow Rate Historical Avg
MEDIAN FLOW RATE · 30 DAY
1,533cfs 1.0% vs avg
Optimal band: 1,301–1,761 cfs
PERIOD HIGH
4,879cfs
PERIOD LOW
1,029cfs
RUNNABLE
39%
last 30 day in band
Precipitation History
Your History · St. Mary R nr Int'l Boundary, MT

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Weather Conditions
WEATHER CONDITIONS
TODAY
78°
55°
WED
81°
55°
THU
76°
55°
FRI
77°
52°
SAT
82°
57°
SUN
81°
57°
MON
87°
52°
TIME
WED
1
NOW
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
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
TEMP
hourly forecast
61°
mild
61°
60°
59°
58°
57°
55°
58°
64°
69°
74°
76°
72°
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°
WIND
mph · gust · dir
7mph W
G 11 mph
7
G11
W
8
G13
WSW
8
G13
WSW
8
G13
WSW
5
G11
WSW
7
G14
W
10
G17
WSW
8
G15
WSW
9
G15
SW
7
G16
WSW
10
G17
WSW
11
G24
WNW
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
G14
WSW
13
WSW
13
WSW
14
SW
18
SW
17
G21
SW
13
G19
WSW
14
G19
WSW
13
G17
WSW
11
G16
SW
7
G12
SW
7
SW
9
SW
10
SW
10
SW
9
G10
SW
9
G10
SW
8
G9
WSW
4
G8
W
3
G8
W
3
G5
W
2
G4
SW
3
G4
SW
4
G7
SW
8
G9
SW
7
G9
SW
8
G11
SSW
11
G13
SW
12
G14
SW
13
G15
SW
14
G17
SSW
16
G19
SSW
13
G19
SSW
10
G16
SSW
8
G9
S
9
S
10
SSW
9
SSW
9
SSW
10
SSW
10
SSW
10
G11
SSW
10
G11
SSW
10
SSW
10
SSW
9
G12
SSW
9
G12
SSW
9
G13
SSW
11
G16
S
11
G22
S
12
G26
SSW
13
G29
SW
14
G33
SW
19
G31
SW
21
G29
SW
21
G28
SW
19
G25
SW
15
G20
SW
13
G14
SW
14
SW
13
SW
12
SW
11
SW
11
SW
12
SW
11
SW
10
SW
9
G11
SW
9
G12
SSW
8
G16
SSW
11
G22
SW
15
G26
SW
19
G28
WSW
19
G28
WSW
16
G28
WSW
15
G28
WSW
13
G28
WSW
11
G28
WSW
9
G27
WSW
8
G27
WSW
PRECIP
chance %
0%
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%
CLOUDS
cover %
0%
clear
0%
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%
PRESSURE
hPa · trend
875
875874878876874874872871872873872870870872871870869870871
TemperatureWind / GustsPrecipitationCloud coverPressure
Nowscroll →
FISH INDEX
75
Temperature
Warm
Wind
Moderate
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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