Waterlands
Chehalis River
USGS · 12025100
CHEHALIS RIVER
USGS · 12025100LIVE

CHEHALIS RIVER AT WWTP AT CHEHALIS, WA

LEWIS COUNTY, WA46.6609°N, -122.9840°W
AIR TEMP
64°F
WIND
7mph WNW
FISH INDEX
81SCORE / 100
GREAT · 4 OF 5
Flow Rate Historical Avg
MEDIAN FLOW RATE · 1 DAY
cfs
No flow data available
Precipitation History

Precipitation · YTD

Normal

Near-normal year

2026 to date

24.7in

≈ normal

24.73 in of precipitation so far this year — about average for this point in the season (normal 28.59 in).

YTD Total

24.7in

This year so far

Normal to Date

28.6in

30-yr average

Typical Range

21.1–35.9in

10th–90th pct YTD

Departure

-13%

vs 30-yr normal

By Month

This year
Typical range
Normal
Jan: 5.35" · normal 7.35" (4.4–10.4)
Jan
Feb: 4.62" · normal 5.38" (2.7–8.1)
Feb
Mar: 8.06" · normal 6.14" (3.3–10.4)
Mar
Apr: 3.14" · normal 4.82" (2.3–7.4)
Apr
May: 1.73" · normal 3.05" (0.9–4.8)
May
Jun: 1.83" (so far)· normal 2.01" (1.1–3.2)
Jun
Jul: normal 0.67" (0.1–1.2)
Jul
Aug: normal 1.01" (0.2–2.0)
Aug
Sep: normal 2.16" (0.2–4.3)
Sep
Oct: normal 5.05" (2.2–7.6)
Oct
Nov: normal 8.19" (4.0–12.4)
Nov
Dec: normal 7.84" (3.8–11.4)
Dec
Baseline 19912020 · Source: Open-Meteo12:08 AM
Your History · CHEHALIS RIVER AT WWTP AT CHEHALIS, WA

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Weather Conditions
WEATHER CONDITIONS
TODAY
67°
54°
FRI
61°
53°
SAT
68°
52°
SUN
60°
47°
MON
64°
54°
TUE
64°
51°
WED
60°
47°
TIME
FRI
12
NOW
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
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
TEMP
hourly forecast
57°
mild
57°
57°
57°
57°
57°
57°
57°
57°
58°
58°
58°
59°
61°
59°
59°
61°
61°
61°
59°
59°
58°
56°
55°
53°
53°
54°
54°
54°
52°
53°
53°
53°
55°
55°
59°
63°
67°
68°
65°
67°
65°
63°
66°
65°
61°
60°
56°
53°
48°
47°
47°
49°
51°
51°
49°
49°
51°
52°
55°
57°
58°
59°
60°
59°
60°
59°
58°
58°
57°
56°
55°
55°
54°
54°
54°
54°
54°
54°
54°
55°
57°
60°
61°
61°
63°
64°
63°
62°
62°
62°
62°
62°
60°
58°
55°
54°
54°
53°
52°
52°
51°
51°
52°
52°
52°
53°
54°
55°
57°
61°
63°
64°
63°
WIND
mph · gust · dir
8mph S
G 17 mph
8
G17
S
9
G19
S
9
G20
S
9
G22
S
8
G20
S
7
G20
S
9
G22
SSW
8
G17
SW
5
G13
SW
7
G14
SW
7
G13
W
7
G15
WSW
7
G12
SW
8
G14
W
9
G16
W
10
G16
W
10
G15
W
8
G14
W
8
G14
W
9
G14
W
8
G14
W
7
G17
W
6
G18
W
5
G17
W
4
G15
SW
6
G15
WSW
5
G13
WSW
5
G13
WSW
3
G12
SW
3
G11
S
2
G9
SW
5
G13
WSW
5
G15
WSW
5
G12
WSW
5
G9
WSW
3
G7
SW
1
G7
WSW
3
G7
NW
4
G8
NNW
7
G9
NW
10
G13
WNW
8
G14
NW
9
NW
7
G10
NW
5
G14
NW
7
G17
W
7
G13
W
4
G8
WSW
2
G7
SW
3
G5
S
4
G9
S
4
G11
S
4
G10
S
4
G9
SSE
5
G9
SSE
5
G10
SSE
5
G11
SSE
5
G11
SSE
6
G12
SSE
6
G13
SSE
5
G14
S
4
G13
SSW
2
G12
SW
3
G11
WSW
4
G12
WSW
4
G12
WSW
5
G13
WSW
4
G12
SW
3
G11
SW
3
G9
SW
3
G11
SSW
3
G9
S
3
G7
S
3
G7
S
3
G7
S
3
G7
S
3
G7
S
3
G8
S
3
G8
S
3
G8
S
3
G8
SSW
4
G9
SW
4
G9
WSW
4
G9
W
3
G9
W
4
G9
W
5
G10
W
6
G10
W
5
G9
WSW
4
G9
WSW
3
G10
SSW
3
G11
SW
5
G13
W
4
G13
WNW
2
G5
WSW
2
G8
SSW
3
G10
S
4
G11
S
4
G10
SSE
4
G11
SSE
4
G11
SSE
4
G11
SSE
4
G11
SSE
4
G12
SSE
4
G13
SSE
4
G13
SSE
4
G12
SSE
5
G11
SE
3
G11
SSE
1
G11
SSW
3
G11
W
4
G11
WNW
6
G12
W
PRECIP
chance %
35%
35%
31%
24%
21%
14%
13%
13%
15%
14%
13%
17%
17%
17%
20%
17%
20%
17%
11%
7%
6%
7%
9%
9%
7%
4%
6%
4%
9%
8%
28%
36%
36%
36%
36%
36%
36%
49%
49%
49%
49%
49%
49%
11%
11%
11%
11%
11%
11%
4%
4%
4%
4%
4%
4%
19%
19%
19%
19%
19%
19%
16%
16%
16%
16%
16%
16%
14%
14%
14%
14%
14%
14%
11%
11%
11%
11%
11%
11%
12%
12%
12%
12%
12%
12%
12%
12%
12%
12%
12%
12%
5%
5%
5%
5%
5%
5%
7%
7%
7%
7%
7%
7%
10%
10%
10%
10%
10%
10%
12%
12%
12%
12%
12%
CLOUDS
cover %
100%
overcast
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
99%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
93%
100%
100%
86%
100%
100%
100%
100%
90%
74%
100%
100%
60%
88%
31%
6%
9%
88%
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%
93%
100%
96%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
80%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
99%
99%
100%
100%
PRESSURE
hPa · trend
1002
1002100010031003100410061006100710091010100910091009100810091009101010101010
TemperatureWind / GustsPrecipitationCloud coverPressure
Nowscroll →
FISH INDEX
81
Temperature
Ideal
Wind
Light
Pressure
Falling — Active
Moon Phase
Average
DAYLIGHT
SUNRISE
05:19 AM
SUNSET
09:09 PM
15H 50M OF DAYLIGHT21H 1M REMAINING
MOON PHASE
Waxing Gibbous
83% illuminated

Station Location

46.6609, -122.9840
Loading map…
DATA · USGS · NOAA · NWSUPDATED 2026-06-26 00:08 UTC
Site #12025100·USGS

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