Waterlands
Chehalis River
USGS · 12035100
CHEHALIS RIVER
USGS · 12035100LIVE

CHEHALIS RIVER NEAR MONTESANO, WA

MONTESANO, WA46.9623°N, -123.6046°W
AIR TEMP
58°F
WIND
10mph W
FISH INDEX
69SCORE / 100
GREAT · 4 OF 5
Flow Rate Historical Avg
MEDIAN FLOW RATE · 30 DAY
cfs
No flow data available
Precipitation History

Precipitation · YTD

Normal

Near-normal year

2026 to date

35.9in

≈ normal

35.93 in of precipitation so far this year — about average for this point in the season (normal 34.13 in).

YTD Total

35.9in

This year so far

Normal to Date

34.1in

30-yr average

Typical Range

25.9–43.2in

10th–90th pct YTD

Departure

+5%

vs 30-yr normal

By Month

This year
Typical range
Normal
Jan: 7.97" · normal 9.63" (5.5–12.7)
Jan
Feb: 6.96" · normal 6.43" (2.7–9.2)
Feb
Mar: 11.64" · normal 7.35" (3.7–12.6)
Mar
Apr: 4.22" · normal 5.45" (2.5–9.3)
Apr
May: 2.79" · normal 3.21" (0.9–5.1)
May
Jun: 2.34" (so far)· normal 2.19" (0.8–3.4)
Jun
Jul: normal 0.74" (0.2–1.5)
Jul
Aug: normal 1.24" (0.2–2.7)
Aug
Sep: normal 2.67" (0.2–5.4)
Sep
Oct: normal 6.52" (1.9–10.3)
Oct
Nov: normal 10.42" (5.0–16.4)
Nov
Dec: normal 10.07" (5.2–15.1)
Dec
Baseline 19912020 · Source: Open-Meteo12:54 AM
Your History · CHEHALIS RIVER NEAR MONTESANO, WA

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Weather Conditions
WEATHER CONDITIONS
TODAY
60°
55°
SAT
62°
54°
SUN
60°
52°
MON
66°
53°
TUE
63°
53°
WED
59°
51°
THU
60°
50°
TIME
SAT
2
NOW
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
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
TEMP
hourly forecast
54°
mild
54°
54°
54°
54°
54°
55°
56°
58°
58°
59°
60°
61°
62°
62°
62°
62°
61°
60°
59°
57°
55°
54°
53°
54°
54°
53°
53°
53°
53°
52°
54°
55°
56°
57°
59°
60°
59°
60°
60°
59°
58°
57°
56°
55°
53°
54°
53°
53°
53°
53°
53°
53°
54°
54°
55°
57°
58°
59°
61°
61°
61°
64°
66°
64°
62°
59°
57°
55°
54°
53°
53°
53°
53°
53°
53°
53°
53°
54°
55°
56°
58°
59°
60°
62°
61°
62°
63°
62°
59°
57°
56°
55°
54°
53°
53°
52°
52°
53°
52°
52°
52°
52°
53°
54°
54°
56°
57°
58°
59°
59°
59°
58°
58°
WIND
mph · gust · dir
6mph WSW
G 20 mph
6
G20
WSW
5
G17
W
5
G14
W
5
G13
WSW
5
G13
W
6
G13
WSW
6
G9
WSW
5
G9
WSW
5
G8
WSW
6
G9
W
8
G11
W
10
G14
W
10
G15
W
11
G17
W
10
G14
WNW
11
G15
WNW
10
G14
WNW
9
G13
WNW
7
G12
WNW
7
G12
W
5
G11
W
5
G12
W
4
G11
WSW
4
G11
W
5
G10
WNW
6
G11
WNW
6
G12
W
6
G12
W
6
G13
W
6
G12
WNW
6
G13
W
6
G12
W
6
G12
W
6
G11
WSW
7
G12
WSW
8
G11
W
9
G12
W
9
G12
W
10
G12
W
9
G11
W
9
G11
W
8
G11
W
6
G11
W
4
G10
WSW
3
G9
WSW
3
G11
WSW
4
G12
WSW
3
G9
SW
3
G9
SW
3
G9
SW
3
G12
WSW
3
G11
SW
3
G11
WSW
3
G10
WSW
4
G9
WSW
4
G8
SW
5
G8
SW
6
G8
SW
6
G8
SW
8
G9
WSW
7
G9
WSW
7
G8
SW
8
WSW
8
WSW
7
G8
SW
7
G8
WSW
5
G10
WSW
4
G10
SW
4
G8
SW
3
G7
SSW
3
G7
SSW
3
G8
SSW
3
G8
SSW
3
G9
SSW
3
G7
SSW
3
G7
SSW
3
G8
SSW
3
G9
SW
4
G9
SW
4
G9
SW
6
G9
SW
7
G9
SW
6
G9
SW
7
G9
WSW
8
G9
WSW
7
G9
WSW
7
G9
WSW
8
G9
WSW
8
G9
W
7
G10
W
5
G10
WSW
6
G13
WSW
4
G12
SW
4
G11
SW
4
G8
SW
4
G10
SW
4
G12
WSW
5
G15
WSW
4
G15
WSW
4
G15
WSW
4
G14
SW
4
G13
SW
4
G12
SW
4
G12
SW
5
G12
SW
6
G11
WSW
6
G11
WSW
7
G11
WSW
8
G11
W
8
G11
W
8
G11
W
8
G12
W
7
G13
W
PRECIP
chance %
14%
14%
20%
10%
6%
6%
12%
15%
13%
12%
22%
24%
24%
19%
15%
15%
15%
11%
8%
5%
4%
2%
2%
2%
1%
1%
2%
1%
1%
0%
0%
0%
0%
0%
0%
2%
2%
2%
2%
2%
2%
4%
4%
4%
4%
4%
4%
2%
2%
2%
2%
2%
2%
2%
2%
2%
2%
2%
2%
7%
7%
7%
7%
7%
7%
2%
2%
2%
2%
2%
2%
3%
3%
3%
3%
3%
3%
3%
3%
3%
3%
3%
3%
7%
7%
7%
7%
7%
7%
3%
3%
3%
3%
3%
3%
2%
2%
2%
2%
2%
2%
2%
2%
2%
2%
2%
2%
11%
11%
11%
11%
11%
11%
5%
CLOUDS
cover %
100%
overcast
100%
100%
100%
93%
100%
100%
20%
28%
100%
100%
100%
100%
74%
78%
11%
9%
3%
5%
19%
16%
10%
10%
11%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
93%
88%
83%
100%
100%
95%
100%
95%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
88%
65%
76%
89%
100%
100%
100%
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%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
PRESSURE
hPa · trend
1011
1011101210151016101810201017101610161016101610161016101610151015101410141014
TemperatureWind / GustsPrecipitationCloud coverPressure
Nowscroll →
FISH INDEX
69
Temperature
Ideal
Wind
Moderate
Pressure
Stable
Moon Phase
Average
DAYLIGHT
SUNRISE
05:21 AM
SUNSET
09:13 PM
15H 52M OF DAYLIGHT19H 9M REMAINING
MOON PHASE
Waxing Gibbous
91% illuminated

Station Location

46.9623, -123.6046
Loading map…
DATA · USGS · NOAA · NWSUPDATED 2026-06-27 02:04 UTC
Site #12035100·USGS

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