Waterlands
Nashoba Brook
USGS · 01097300
NASHOBA BROOK
USGS · 01097300LIVE

NASHOBA BROOK NEAR ACTON, MA

ACTON, MA42.5126°N, -71.4042°W Updated 8 hr ago
FLOW RATE
5cfs
AIR TEMP
79°F
WIND
7mph W
FISH INDEX
69SCORE / 100
GREAT · 4 OF 5
Flow Rate Historical Avg
MEDIAN FLOW RATE · 7 DAY
5cfs 24.2% vs avg
Optimal band: 57 cfs
PERIOD HIGH
9cfs
PERIOD LOW
5cfs
RUNNABLE
88%
last 7 day in band
Precipitation History

Precipitation · YTD

Normal

Near-normal year

2026 to date

19.6in

≈ normal

19.63 in of precipitation so far this year — about average for this point in the season (normal 21.09 in).

YTD Total

19.6in

This year so far

Normal to Date

21.1in

30-yr average

Typical Range

15.9–25.7in

10th–90th pct YTD

Departure

-7%

vs 30-yr normal

By Month

This year
Typical range
Normal
Jan: 3.19" · normal 3.23" (1.8–4.7)
Jan
Feb: 1.93" · normal 3.03" (1.8–4.4)
Feb
Mar: 3.56" · normal 4.16" (2.4–6.1)
Mar
Apr: 2.33" · normal 3.72" (2.0–5.8)
Apr
May: 4.91" · normal 3.09" (1.6–4.6)
May
Jun: 3.65" · normal 3.61" (1.4–5.6)
Jun
Jul: 0.05" (so far)· normal 3.14" (1.7–4.5)
Jul
Aug: normal 3.48" (1.6–5.6)
Aug
Sep: normal 3.49" (1.4–6.7)
Sep
Oct: normal 3.86" (1.3–6.6)
Oct
Nov: normal 3.36" (1.6–4.9)
Nov
Dec: normal 4.10" (2.5–6.0)
Dec
Baseline 19912020 · Source: Open-Meteo07:05 AM
Your History · NASHOBA BROOK NEAR ACTON, MA

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Weather Conditions
WEATHER CONDITIONS
TODAY
95°
78°
SAT
93°
68°
SUN
89°
63°
MON
85°
61°
TUE
67°
58°
WED
80°
58°
THU
90°
61°
TIME
FRI
8
NOW
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
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
TEMP
hourly forecast
85°
mild
85°
87°
89°
91°
93°
95°
95°
95°
95°
94°
93°
92°
89°
86°
84°
82°
82°
80°
79°
78°
77°
76°
76°
80°
82°
85°
87°
89°
90°
91°
92°
93°
92°
91°
89°
81°
79°
73°
71°
68°
67°
66°
65°
65°
64°
63°
63°
67°
71°
77°
81°
84°
86°
87°
87°
89°
87°
85°
80°
77°
74°
71°
69°
66°
65°
63°
63°
63°
62°
62°
61°
66°
71°
75°
79°
82°
83°
84°
85°
84°
82°
81°
77°
74°
72°
70°
69°
68°
67°
67°
66°
62°
62°
63°
63°
63°
63°
64°
64°
65°
65°
66°
66°
66°
65°
64°
63°
62°
61°
60°
59°
58°
58°
58°
58°
58°
WIND
mph · gust · dir
8mph WNW
G 19 mph
8
G19
WNW
9
G15
WNW
9
G15
WNW
9
G16
W
10
G18
W
11
G17
W
12
G18
W
13
G19
W
12
G19
W
12
G19
W
12
G21
W
9
G20
W
5
G16
W
4
G9
WNW
4
G10
W
4
G8
W
3
G8
W
4
G9
W
4
G8
W
5
G11
W
5
G12
WSW
5
G13
W
6
G13
W
8
G20
W
9
G18
W
10
G17
W
10
G16
WNW
10
G18
WNW
10
G16
WNW
10
G20
WNW
11
G18
W
10
G21
W
10
G16
W
8
G16
WNW
7
G15
WNW
7
G14
NNW
7
G17
E
6
G21
NNE
4
G15
NNE
3
N
3
NNW
3
N
3
N
3
N
3
NW
3
NNW
3
NNW
3
G4
NNW
3
G4
NNW
2
G3
N
2
NNW
3
NW
4
NW
6
NW
5
NW
3
WNW
3
ESE
7
ESE
9
G12
ESE
10
G19
SSE
7
G20
S
6
G18
S
5
G15
S
5
G9
SSW
4
G10
SW
4
G7
SW
4
WSW
4
WSW
3
WSW
2
G3
SSW
3
E
2
SE
3
G5
SSE
5
G9
SSE
5
G9
SSE
6
G10
S
6
G10
S
6
G10
SSE
9
G11
S
11
G12
SSW
11
G13
S
11
G12
S
9
G17
SSE
7
G18
S
6
G17
S
5
G15
S
5
G14
SSE
5
G12
SSE
2
S
4
SE
4
G7
ESE
4
G10
ENE
5
G14
ENE
7
G18
E
7
G16
E
9
G22
ENE
9
G22
E
11
G24
E
11
G25
E
10
G25
ESE
9
G23
ESE
8
G18
ESE
6
G13
E
4
G12
ENE
6
G19
NNW
9
G22
N
10
G22
N
10
G23
N
9
G23
N
9
G22
N
8
G20
N
8
G19
N
8
G19
N
8
G19
N
7
G19
N
7
G18
N
PRECIP
chance %
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
1%
1%
2%
2%
3%
3%
4%
3%
3%
2%
2%
3%
3%
5%
5%
3%
2%
2%
2%
2%
2%
2%
43%
43%
43%
43%
43%
43%
4%
4%
4%
4%
4%
4%
3%
3%
3%
3%
3%
3%
5%
5%
5%
5%
5%
5%
5%
5%
5%
5%
5%
5%
15%
15%
15%
15%
15%
15%
11%
11%
11%
11%
11%
11%
11%
11%
11%
11%
11%
11%
35%
35%
35%
35%
35%
35%
41%
41%
41%
41%
41%
41%
44%
44%
44%
44%
44%
44%
42%
42%
42%
42%
42%
42%
28%
28%
28%
28%
28%
28%
16%
16%
16%
16%
16%
16%
17%
CLOUDS
cover %
0%
clear
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
81%
80%
0%
0%
0%
96%
100%
100%
100%
0%
0%
0%
0%
0%
0%
65%
44%
31%
78%
16%
18%
50%
91%
100%
100%
100%
90%
14%
14%
16%
57%
6%
6%
10%
38%
44%
100%
100%
100%
100%
100%
94%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
93%
50%
12%
10%
100%
100%
100%
100%
87%
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%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
PRESSURE
hPa · trend
1005
10051004100310031004100310041007100810081009101210131012101110101008100610071006
TemperatureWind / GustsPrecipitationCloud coverPressure
Nowscroll →
FISH INDEX
69
Temperature
Warm
Wind
Light
Pressure
Stable
Moon Phase
Average
DAYLIGHT
SUNRISE
05:13 AM
SUNSET
08:26 PM
15H 13M OF DAYLIGHT12H 13M REMAINING
MOON PHASE
Waning Gibbous
88% illuminated

Station Location

42.5126, -71.4042
Loading map…
DATA · USGS · NOAA · NWSUPDATED 2026-07-03 08:13 UTC
Site #01097300·USGS

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