Water Temperature of the Cascade River in Marblemount, WA

Current Water Temperature

40.1°F

Measurement Time: Friday, February 20, 2026, 1:45 AM PST

Temperature Locations

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Local Points of Interest

Skagit River

Cascade River

Station Name: CASCADE RIVER AT MARBLEMOUNT, WA
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 348 feet

Nearest Address:
5901 S Cascade Rd
Marblemount, WA 98267
Skagit County

GPS Coordinates: 48.5262307, -121.4154046

Nearby Water Temperatures

Skagit River, Marblemount, WA (0.8 mi)
Bacon Creek, Marblemount, WA (5.5 mi)
Sauk River, Concrete, WA (9.9 mi)
Skagit River, Newhalem, WA (12.7 mi)
Sauk River, Darrington, WA (20.6 mi)
Big Beaver Creek, Diablo, WA (23.4 mi)
Ruby Creek, Newhalem, WA (23.6 mi)
Sauk River, Darrington, WA (24.8 mi)
North Fork Nooksack River, Glacier, WA (32.7 mi)
Skookum Creek, Doran, WA (34.6 mi)
South Fork Nooksack River, Doran, WA (35.9 mi)
South Fork Sultan River, Sultan, WA (41.2 mi)
Skagit River, Burlington, WA (42.5 mi)
Sultan River, Lake Roesiger, WA (42.9 mi)
Nooksack River, Cedarville, WA (45.6 mi)

Weather for Marblemount, Washington

Current Weather

33.1°F
Cloudy
Cloudy
31.7°F
20.8°F
88%
WSW 2.2 mph
2.8 mph
14.5°F
13.6°F
0 in
0%
9 mi
1016 mbar
0.9

Five Day Weather Forecast

Overcast
Fri
H: 26°F
L: 19°F
Moderate or heavy snow showers
Sat
H: 35°F
L: 24°F
Heavy rain
Sun
H: 41°F
L: 31°F
Heavy snow
Mon
H: 38°F
L: 30°F
Moderate or heavy snow showers
Tue
H: 30°F
L: 26°F

Air Quality

AQI: 1 - Good
PM2.5: 3.45 μg/m3
PM10: 3.75 μg/m3
Carbon Monoxide: 162.85 μg/m3
Nitrogen Dioxide: 2.75 μg/m3
Sulphur Dioxide: 2.65 μg/m3
Ozone: 89 μg/m3

Astronomical

Sunrise: 7:04 AM
Sun Transit: 12:19 AM
Sunset: 5:35 PM
Daylight: 10 hrs 32 mins
Moonrise: 8:10 AM
Moon Transit: 12:00 AM
Moonset: 9:58 PM
Moon Phase: Waxing Crescent
Moon Illumination: 11.3%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:00 AM - 12:00 AM

Minor Periods

9:28 PM - 10:58 PM
7:40 AM - 9:10 AM

Action Rating: 2 out of 5

Cold Weather Advisory issued February 19 at 10:03PM PST until February 20 at 10:00AM PST by NWS Seattle WA

Effective: Thu February 19, 2026, 10:03 PM
Expires: Fri February 20, 2026, 8:00 AM

* WHAT...Very cold wind chills as low as 15 to 20 degrees expected. * WHERE...Lowlands of Western Whatcom County. * WHEN...Until 10 AM PST Friday. * IMPACTS...Very cold temperatures can lead to hypothermia with prolonged exposure.

Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. Keep pets indoors as much as possible. Make frequent checks on older family, friends, and neighbors. Ensure portable heaters are used correctly. Do not use generators or grills inside. For sheltering information and other human services in your area, dial 2 1 1 during business hours or visit wa211.org anytime.
Friday, February 20, 2026

Weather Forecast

Overcast
26.1°F
18.5°F
25°F
74%
0 in
0%
0%
4.3 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 3.55 μg/m3
PM10: 3.98 μg/m3
Carbon Monoxide: 159.01 μg/m3
Nitrogen Dioxide: 2.38 μg/m3
Sulphur Dioxide: 2.3 μg/m3
Ozone: 84.88 μg/m3

Astronomical

Sunrise: 7:04 AM
Sun Transit: 12:19 AM
Sunset: 5:35 PM
Daylight: 10 hrs 32 mins
Moonrise: 8:10 AM
Moon Transit: 12:00 AM
Moonset: 9:58 PM
Moon Phase: Waxing Crescent
Moon Illumination: 11.3%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:00 AM - 12:00 AM

Minor Periods

9:28 PM - 10:58 PM
7:40 AM - 9:10 AM

Action Rating: 2 out of 5

Saturday, February 21, 2026

Weather Forecast

Moderate or heavy snow showers
34.8°F
24.4°F
31°F
69%
0.53 in
84%
0%
7.6 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 3.55 μg/m3
PM10: 3.8 μg/m3
Carbon Monoxide: 158.05 μg/m3
Nitrogen Dioxide: 2.41 μg/m3
Sulphur Dioxide: 1.96 μg/m3
Ozone: 82.88 μg/m3

Astronomical

Sunrise: 7:02 AM
Sun Transit: 12:19 AM
Sunset: 5:37 PM
Daylight: 10 hrs 35 mins
Moonrise: 8:27 AM
Moon Transit: 3:44 PM
Moonset: 11:21 PM
Moon Phase: Waxing Crescent
Moon Illumination: 19.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
3:14 PM - 5:44 PM

Minor Periods

12:00 AM - 12:00 AM
7:57 AM - 9:27 AM

Action Rating: 3 out of 5

Sunday, February 22, 2026

Weather Forecast

Heavy rain
40.6°F
30.6°F
37.1°F
79%
1.09 in
87%
9%
7.6 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 3.74 μg/m3
PM10: 4.13 μg/m3
Carbon Monoxide: 155.29 μg/m3
Nitrogen Dioxide: 1.81 μg/m3
Sulphur Dioxide: 1.61 μg/m3
Ozone: 99.4 μg/m3

Astronomical

Sunrise: 7:00 AM
Sun Transit: 12:19 AM
Sunset: 5:39 PM
Daylight: 10 hrs 38 mins
Moonrise: 8:48 AM
Moon Transit: 4:37 PM
Moonset: 12:21 AM
Moon Phase: Waxing Crescent
Moon Illumination: 29.1%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
4:07 PM - 6:37 PM

Minor Periods

8:18 AM - 9:48 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Monday, February 23, 2026

Weather Forecast

Heavy snow
37.6°F
30.2°F
33.2°F
91%
1.05 in
89%
36%
4.7 mph
0.1


Air Quality

AQI: 1 - Good
PM2.5: 2.01 μg/m3
PM10: 2.47 μg/m3
Carbon Monoxide: 149.48 μg/m3
Nitrogen Dioxide: 1.71 μg/m3
Sulphur Dioxide: 1.23 μg/m3
Ozone: 104.16 μg/m3

Astronomical

Sunrise: 6:58 AM
Sun Transit: 12:18 AM
Sunset: 5:40 PM
Daylight: 10 hrs 42 mins
Moonrise: 9:15 AM
Moon Transit: 5:33 PM
Moonset: 12:46 AM
Moon Phase: First Quarter
Moon Illumination: 39.8%

Best Times for Fishing or Hunting

Major Periods

12:13 AM - 2:43 AM
5:03 PM - 7:33 PM

Minor Periods

8:45 AM - 10:15 AM
12:16 AM - 1:46 AM

Action Rating: 2 out of 5

Tuesday, February 24, 2026

Weather Forecast

Moderate or heavy snow showers
29.9°F
26.4°F
28.4°F
97%
0.48 in
68%
63%
4.7 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 1.5 μg/m3
PM10: 1.78 μg/m3
Carbon Monoxide: 153.93 μg/m3
Nitrogen Dioxide: 2.17 μg/m3
Sulphur Dioxide: 0.99 μg/m3
Ozone: 92.23 μg/m3

Astronomical

Sunrise: 6:56 AM
Sun Transit: 12:18 AM
Sunset: 5:42 PM
Daylight: 10 hrs 45 mins
Moonrise: 9:53 AM
Moon Transit: 6:34 PM
Moonset: 2:09 AM
Moon Phase: First Quarter
Moon Illumination: 51.1%

Best Times for Fishing or Hunting

Major Periods

1:11 AM - 3:41 AM
6:04 PM - 8:34 PM

Minor Periods

9:23 AM - 10:53 AM
1:39 AM - 3:09 AM

Action Rating: 3 out of 5

The times presented here are based upon the solunar theory, which is the idea that the movements of fish and other animals are affected by the location of the sun and moon. The major periods are believed to be the times of the greatest animal activity and occur when the moon is directly overhead or underfoot (lunar transits). The minor periods also see increased activity and occur when the moon is rising or setting. The strongest activity occurs during full or new moons, and the weakest during quarter or three quarter moons. This is indicated by the Action Rating.

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