Waterlands
Charles River
USGS · 01104500
CHARLES RIVER
USGS · 01104500LIVE

CHARLES RIVER AT WALTHAM, MA

WALTHAM, MA42.3723°N, -71.2337°W Updated 1 hr ago
FLOW RATE
88.1cfs
GAUGE HT
1.13ft
AIR TEMP
62°F
WIND
4mph WNW
FISH INDEX
75SCORE / 100
GREAT · 4 OF 5
Flow Rate Historical Avg
MEDIAN FLOW RATE · 1 DAY
88.1cfs 66.4% vs avg
Optimal band: 75–101 cfs
PERIOD HIGH
90cfs
PERIOD LOW
86.3cfs
RUNNABLE
100%
last 1 day in band

Gauge Height

1.13ft
Precipitation History
Your History · CHARLES RIVER AT WALTHAM, MA

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Weather Conditions
WEATHER CONDITIONS
TODAY
82°
60°
MON
89°
63°
TUE
99°
68°
WED
97°
79°
THU
90°
69°
FRI
86°
63°
SAT
85°
63°
TIME
SUN
7
NOW
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
MON
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
TUE
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
WED
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
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
TEMP
hourly forecast
64°
mild
64°
68°
73°
76°
79°
81°
82°
81°
81°
80°
80°
79°
78°
78°
75°
72°
70°
68°
67°
65°
64°
63°
63°
63°
68°
73°
78°
82°
85°
87°
87°
89°
88°
89°
89°
87°
83°
78°
73°
71°
70°
70°
69°
69°
69°
69°
68°
68°
71°
77°
82°
87°
91°
93°
96°
98°
98°
99°
99°
99°
96°
92°
90°
88°
87°
87°
86°
85°
83°
82°
82°
82°
83°
85°
87°
89°
91°
94°
96°
97°
91°
91°
93°
90°
87°
85°
84°
82°
79°
77°
76°
74°
73°
72°
71°
71°
73°
77°
82°
86°
88°
89°
90°
90°
83°
78°
84°
83°
78°
76°
73°
71°
69°
67°
66°
WIND
mph · gust · dir
7mph NNW
G 18 mph
7
G18
NNW
7
G16
N
7
G12
NNE
7
G9
NE
6
G8
NE
6
G7
NE
9
G11
E
11
G13
E
11
G13
E
10
G12
E
9
G11
E
8
G10
E
8
G10
ESE
7
G12
SE
6
G15
SSE
7
G19
S
4
G14
S
3
G11
SSW
1
G8
S
3
G9
S
2
G10
SSW
3
G11
S
3
G11
S
2
G9
S
5
G15
SSW
7
G18
SW
8
G16
SW
9
G14
SW
9
G13
SW
10
G13
SW
12
G16
SW
12
G16
SW
13
G18
SW
11
G16
SW
12
G17
SW
12
G17
SW
12
G21
SSW
11
G24
SSW
10
G26
SSW
9
G29
SW
10
G28
SW
9
G29
SW
9
G30
SW
9
G29
SW
8
G26
SW
7
G24
SW
8
G25
SW
8
G24
SW
8
G24
SW
10
G20
SW
11
G19
WSW
11
G18
WSW
12
G19
WSW
14
G20
WSW
14
G22
WSW
15
G22
W
15
G23
W
15
G23
W
14
G24
WSW
13
G24
WSW
13
G27
WSW
12
G27
W
12
G28
W
11
G28
W
12
G28
W
13
G29
W
12
G29
W
11
G29
W
10
G28
W
10
G26
W
9
G24
W
9
G24
WSW
9
G24
W
12
G21
WNW
10
G19
WNW
10
G17
WNW
10
G16
WNW
9
G17
WNW
10
G23
NW
11
G21
WNW
9
G17
NW
9
G13
NW
10
G15
WNW
10
G17
WNW
9
G21
WNW
8
G22
WNW
9
G24
WNW
8
G22
WNW
7
G22
WNW
7
G23
WNW
8
G25
WNW
7
G22
W
7
G20
WSW
8
G25
WSW
7
G24
W
6
G17
W
8
G20
W
7
G14
W
6
G11
WNW
7
G11
WNW
9
G14
WNW
10
G19
W
11
G22
W
13
G24
W
18
G23
NNW
8
G25
NW
10
G17
WNW
13
G22
NW
9
G22
NW
5
G13
WNW
5
G12
WNW
5
G11
WNW
4
G10
WNW
4
G8
WNW
4
G5
WNW
PRECIP
chance %
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%
2%
2%
0%
3%
3%
3%
3%
3%
3%
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%
5%
5%
5%
5%
5%
5%
5%
5%
5%
5%
5%
5%
3%
3%
3%
3%
3%
3%
0%
0%
0%
0%
0%
0%
1%
1%
1%
1%
1%
1%
2%
2%
2%
2%
2%
CLOUDS
cover %
0%
clear
0%
0%
0%
0%
15%
18%
38%
24%
6%
3%
2%
3%
7%
100%
99%
100%
10%
2%
0%
0%
71%
100%
100%
1%
0%
0%
1%
0%
2%
17%
26%
23%
100%
33%
6%
100%
90%
25%
0%
86%
12%
100%
100%
100%
100%
100%
100%
100%
100%
26%
100%
100%
15%
0%
0%
56%
8%
6%
0%
7%
100%
100%
100%
100%
0%
0%
5%
100%
100%
100%
100%
71%
100%
10%
11%
100%
100%
75%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
86%
100%
100%
0%
5%
0%
0%
0%
0%
0%
0%
31%
87%
100%
100%
100%
37%
100%
100%
61%
100%
100%
100%
100%
100%
70%
30%
PRESSURE
hPa · trend
1020
10201021102110211021101910171017101610101006100610061005100510061007100510071009
TemperatureWind / GustsPrecipitationCloud coverPressure
Nowscroll →
FISH INDEX
75
Temperature
Ideal
Wind
Calm
Pressure
Rising — Slow
Moon Phase
Average
DAYLIGHT
SUNRISE
05:19 AM
SUNSET
08:21 PM
15H 2M OF DAYLIGHT
MOON PHASE
Waning Crescent
7% illuminated

Station Location

42.3723, -71.2337
Loading map…
DATA · USGS · NOAA · NWSUPDATED 2026-07-12 05:30 UTC
Site #01104500·USGS

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