Waterlands
Alewife Brook
USGS · 01103025
ALEWIFE BROOK
USGS · 01103025LIVE

ALEWIFE BROOK NEAR ARLINGTON, MA

SOMERVILLE, MA42.4069°N, -71.1339°W Updated 9 hr ago
FLOW RATE
11cfs
AIR TEMP
67°F
WIND
3mph SSE
FISH INDEX
88SCORE / 100
EPIC · 5 OF 5
Flow Rate Historical Avg
MEDIAN FLOW RATE · 7 DAY
11cfs 4.0% vs avg
Optimal band: 68 cfs
PERIOD HIGH
17cfs
PERIOD LOW
4cfs
RUNNABLE
50%
last 7 day in band
Precipitation History

Precipitation · YTD

Normal

Near-normal year

2026 to date

18.2in

≈ normal

18.19 in of precipitation so far this year — about average for this point in the season (normal 20.31 in).

YTD Total

18.2in

This year so far

Normal to Date

20.3in

30-yr average

Typical Range

15.0–25.2in

10th–90th pct YTD

Departure

-10%

vs 30-yr normal

By Month

This year
Typical range
Normal
Jan: 3.21" · normal 3.32" (1.8–4.7)
Jan
Feb: 2.14" · normal 3.08" (1.8–4.5)
Feb
Mar: 3.81" · normal 4.29" (2.5–6.4)
Mar
Apr: 2.91" · normal 3.80" (2.1–5.9)
Apr
May: 3.01" · normal 3.10" (1.6–4.6)
May
Jun: 3.11" (so far)· normal 3.48" (1.4–6.1)
Jun
Jul: normal 3.12" (1.7–5.1)
Jul
Aug: normal 3.37" (1.6–5.2)
Aug
Sep: normal 3.50" (1.5–6.8)
Sep
Oct: normal 3.92" (1.3–6.2)
Oct
Nov: normal 3.43" (1.8–5.1)
Nov
Dec: normal 4.21" (2.5–6.1)
Dec
Baseline 19912020 · Source: Open-Meteo08:17 AM
SPONSORED
Weather Conditions
WEATHER CONDITIONS
TODAY
71°
63°
WED
81°
61°
THU
83°
60°
FRI
73°
61°
SAT
77°
61°
SUN
80°
58°
MON
82°
60°
TIME
TUE
10
NOW
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
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
TEMP
hourly forecast
66°
mild
66°
67°
68°
68°
68°
67°
69°
71°
71°
67°
65°
65°
64°
63°
63°
63°
63°
63°
62°
61°
62°
64°
67°
70°
72°
74°
77°
79°
80°
80°
81°
80°
80°
78°
74°
70°
67°
65°
64°
63°
63°
62°
61°
60°
61°
64°
69°
72°
75°
76°
78°
80°
82°
83°
82°
77°
74°
72°
70°
70°
70°
62°
62°
62°
63°
62°
61°
61°
61°
63°
65°
67°
70°
69°
69°
70°
71°
71°
73°
73°
73°
72°
70°
67°
66°
65°
64°
63°
62°
62°
62°
61°
62°
66°
69°
72°
74°
76°
77°
77°
76°
76°
74°
73°
70°
68°
64°
63°
62°
61°
61°
60°
60°
59°
58°
WIND
mph · gust · dir
6mph WNW
G 8 mph
6
G8
WNW
7
G11
WNW
7
G12
NW
7
G11
NW
4
G12
NW
3
G10
WSW
2
G8
SSE
1
G11
S
5
G9
ESE
6
G7
E
5
G7
E
3
G7
E
2
G6
ESE
2
G5
W
2
WNW
3
G5
W
4
G8
W
5
G11
NW
6
G14
NW
5
G13
NW
6
G13
NW
8
G20
NW
8
G16
NW
7
G13
NW
7
G11
NW
7
G13
WNW
8
G13
WNW
11
G16
WNW
12
G16
WNW
12
G17
W
11
G16
W
11
G16
WNW
11
G17
W
10
G17
WNW
9
G21
WNW
5
G10
WNW
4
G11
WNW
4
G9
WNW
4
G8
WNW
4
G13
WNW
5
G14
WNW
5
G14
WNW
5
G11
W
5
G8
W
4
G7
W
5
G9
W
5
G7
W
4
G6
WSW
5
G7
WSW
5
G7
WSW
5
G7
WSW
5
G9
WSW
5
G10
SW
4
G12
SW
2
G12
SSW
5
ENE
4
G8
E
0
G5
S
3
G5
WNW
3
G4
SSW
10
G18
SW
6
G17
WNW
5
G18
WSW
5
G23
SSW
8
G27
S
9
G25
SW
8
G28
SW
8
G29
SW
7
G25
SSW
7
G24
SSW
7
G23
SW
9
G20
SW
9
G17
SW
9
G15
SW
6
G13
SW
5
G6
SSW
8
G12
SW
7
G14
SW
9
G13
SW
8
G13
SW
9
G13
SW
8
G14
SW
7
G19
SW
6
G20
SW
6
G21
SW
6
G23
SW
6
G19
WSW
5
G16
WSW
4
G14
WSW
4
G13
WSW
4
G9
WSW
4
G7
WNW
4
G10
NW
4
G9
NNW
5
G10
N
5
G9
NNE
6
G7
NE
7
ENE
8
ENE
9
E
10
E
9
E
9
G10
E
8
G11
E
7
G11
E
6
G9
E
3
G7
ENE
3
G5
NE
3
G4
NE
3
NE
3
NE
2
NE
2
NE
2
NNE
2
N
PRECIP
chance %
47%
47%
52%
42%
27%
25%
22%
24%
17%
10%
11%
12%
11%
10%
5%
9%
8%
5%
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%
2%
2%
2%
2%
2%
2%
20%
20%
20%
20%
20%
20%
61%
61%
61%
61%
61%
61%
48%
48%
48%
48%
48%
48%
30%
30%
30%
30%
30%
30%
14%
14%
14%
14%
14%
14%
17%
17%
17%
17%
17%
17%
23%
23%
23%
23%
23%
23%
28%
28%
28%
28%
28%
28%
16%
16%
16%
16%
16%
16%
6%
6%
CLOUDS
cover %
100%
overcast
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
97%
0%
14%
16%
24%
28%
20%
18%
14%
6%
4%
2%
0%
72%
100%
87%
60%
53%
43%
53%
84%
18%
15%
100%
83%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
6%
6%
0%
0%
0%
7%
6%
28%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
86%
80%
76%
61%
7%
9%
43%
51%
64%
67%
52%
27%
8%
1%
0%
PRESSURE
hPa · trend
1010
10101010101110101011101210151016101710151017101510151013101410141015101510161016
TemperatureWind / GustsPrecipitationCloud coverPressure
Nowscroll →
FISH INDEX
88
Temperature
Ideal
Wind
Calm
Pressure
Stable
Moon Phase
Good
DAYLIGHT
SUNRISE
05:08 AM
SUNSET
08:25 PM
15H 17M OF DAYLIGHT10H 52M REMAINING
MOON PHASE
First Quarter
58% illuminated

Station Location

42.4069, -71.1339
Loading map…
DATA · USGS · NOAA · NWSUPDATED 2026-06-23 09:33 UTC
Site #01103025·USGS

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