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Merwin — Boating Conditions
Tides, water temp & weather • Cowlitz County, WA
Boating Conditions at Merwin
Current wind, air and water temperature, tide times and a 10-day forecast for Merwin on North Fork Lewis River in Cowlitz County, Washington. Check conditions before you launch.
Right Now
Overcast
Calm — good conditions to get on the water
Air Temp
55°F
Wind
4 mph
gusts 4 mph
Tide Times
Nearest tide station: St Helens, OR · ~13 mi away
TueHigh 1:52 AM (2 ft)Low 10:18 AM (-0.1 ft)High 3:54 PM (1.8 ft)Low 9:35 PM (0.5 ft)
WedHigh 2:53 AM (2 ft)Low 10:50 AM (-0.2 ft)High 4:23 PM (1.9 ft)Low 10:32 PM (0.2 ft)
Next Few Hours
Now
⛅
55°
4 mph
5AM
⛅
55°
4 mph
6AM
⛅
53°
4 mph
7AM
⛅
53°
5 mph
8AM
⛅
55°
4 mph
9AM
☀️
60°
2 mph
10-Day Boating Forecast
Tue, 9/22
⛅
71° / 53°
Wind 10, gusts 17 mph
1% rain
Wed, 9/23
⛅
67° / 48°
Wind 8, gusts 21 mph
2% rain
Thu, 9/24
🌧️
67° / 49°
Wind 5 mph
58% rain
Fri, 9/25
🌧️
65° / 48°
Wind 10, gusts 15 mph
82% rain
Sat, 9/26
⛅
71° / 44°
Wind 8, gusts 11 mph
12% rain
Sun, 9/27
🌧️
54° / 50°
Wind 5, gusts 12 mph
9% rain
Mon, 9/28
🌧️
66° / 49°
Wind 5, gusts 13 mph
21% rain
Tue, 9/29
⛅
73° / 48°
Wind 4 mph
23% rain
Wed, 9/30
🌧️
55° / 49°
Wind 4 mph
27% rain
Thu, 10/1
⛅
65° / 45°
Wind 8, gusts 11 mph
24% rain
Weather & wave data from Open-Meteo. Tides & water temperature from NOAA CO-OPS. Conditions are estimates for trip planning — always confirm locally and check official marine forecasts before heading out.
