Water Temperature of the Cascade River in Marblemount, WA

Current Water Temperature

43.7°F

Measurement Time: Tuesday, April 14, 2026, 2:45 AM PDT

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

30.5°F
Overcast
Overcast
21.9°F
30.5°F
96%
SSW 4.5 mph
6.9 mph
21.9°F
29.8°F
0 in
100%
1 mi
1013 mbar
1

Five Day Weather Forecast

Moderate or heavy snow showers
Tue
H: 31°F
L: 22°F
Moderate or heavy snow showers
Wed
H: 31°F
L: 19°F
Overcast
Thu
H: 33°F
L: 23°F
Freezing fog
Fri
H: 33°F
L: 27°F
Partly Cloudy
Sat
H: 44°F
L: 26°F

Air Quality

AQI: 1 - Good
PM2.5: 1.25 μg/m3
PM10: 1.25 μg/m3
Carbon Monoxide: 159.85 μg/m3
Nitrogen Dioxide: 3.35 μg/m3
Sulphur Dioxide: 1.15 μg/m3
Ozone: 82 μg/m3

Astronomical

Sunrise: 6:17 AM
Sun Transit: 1:05 PM
Sunset: 7:56 PM
Daylight: 13 hrs 39 mins
Moonrise: 5:04 AM
Moon Transit: 10:49 AM
Moonset: 4:50 PM
Moon Phase: Waning Crescent
Moon Illumination: 1.9%

Best Times for Fishing or Hunting

Major Periods

6:23 PM - 8:53 PM
10:19 AM - 12:49 AM

Minor Periods

4:20 PM - 5:50 PM
4:34 AM - 6:04 AM

Action Rating: 3 out of 5

Winter Storm Warning issued April 13 at 6:15PM PDT until April 15 at 11:00PM PDT by NWS Seattle WA

Effective: Mon April 13, 2026, 6:15 PM
Expires: Tue April 14, 2026, 4:00 AM

* WHAT...Heavy snow expected. Total snow accumulations between 10 and 20 inches. Winds gusting as high as 40 mph. * WHERE...Cascades of Snohomish and Northern King Counties, Cascades of Whatcom and Skagit Counties, Cascades of Pierce and Lewis Counties, and Cascades of Southern King County. * WHEN...From 11 AM Tuesday to 11 PM PDT Wednesday. * IMPACTS...Travel could be very difficult. * ADDITIONAL DETAILS...Heavy snow will be possible for areas above 2500 feet. The heaviest snow will fall Tuesday night into Wednesday morning.

If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. Prepare for possible power outages.


Winter Storm Warning issued April 14 at 2:33AM PDT until April 15 at 11:00PM PDT by NWS Seattle WA

Effective: Tue April 14, 2026, 2:33 AM
Expires: Tue April 14, 2026, 12:00 PM

* WHAT...Heavy snow expected. Total snow accumulations between 10 and 20 inches. Winds gusting as high as 40 mph. * WHERE...Cascades of Snohomish and Northern King Counties, Cascades of Whatcom and Skagit Counties, Cascades of Pierce and Lewis Counties, and Cascades of Southern King County. * WHEN...From 11 AM this morning to 11 PM PDT Wednesday. * IMPACTS...Travel could be very difficult. * ADDITIONAL DETAILS...Heavy snow will be possible for areas above 2500 feet. The heaviest snow will fall Tuesday night into Wednesday morning.

If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. Prepare for possible power outages.
Tuesday, April 14, 2026

Weather Forecast

Moderate or heavy snow showers
30.7°F
21.6°F
29.1°F
97%
1.43 in
70%
55%
6.9 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 1.32 μg/m3
PM10: 1.4 μg/m3
Carbon Monoxide: 159.81 μg/m3
Nitrogen Dioxide: 3.11 μg/m3
Sulphur Dioxide: 1.13 μg/m3
Ozone: 81.68 μg/m3

Astronomical

Sunrise: 6:17 AM
Sun Transit: 1:05 PM
Sunset: 7:56 PM
Daylight: 13 hrs 39 mins
Moonrise: 5:04 AM
Moon Transit: 10:49 AM
Moonset: 4:50 PM
Moon Phase: Waning Crescent
Moon Illumination: 1.9%

Best Times for Fishing or Hunting

Major Periods

6:23 PM - 8:53 PM
10:19 AM - 12:49 AM

Minor Periods

4:20 PM - 5:50 PM
4:34 AM - 6:04 AM

Action Rating: 3 out of 5

Wednesday, April 15, 2026

Weather Forecast

Moderate or heavy snow showers
30.9°F
19.2°F
26.1°F
87%
0.12 in
65%
21%
5.1 mph
1.1


Air Quality

AQI: 1 - Good
PM2.5: 2.24 μg/m3
PM10: 2.94 μg/m3
Carbon Monoxide: 156.13 μg/m3
Nitrogen Dioxide: 2.16 μg/m3
Sulphur Dioxide: 1.18 μg/m3
Ozone: 94.8 μg/m3

Astronomical

Sunrise: 6:15 AM
Sun Transit: 1:05 PM
Sunset: 7:57 PM
Daylight: 13 hrs 42 mins
Moonrise: 5:19 AM
Moon Transit: 8:33 AM
Moonset: 6:10 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

8:03 AM - 10:33 AM
8:03 AM - 10:33 AM

Minor Periods

5:40 PM - 7:10 PM
4:49 AM - 6:19 AM

Action Rating: 3 out of 5

Thursday, April 16, 2026

Weather Forecast

Overcast
33.4°F
23°F
29.6°F
92%
0 in
0%
0%
4 mph
0.9


Air Quality

AQI: 1 - Good
PM2.5: 3.04 μg/m3
PM10: 3.92 μg/m3
Carbon Monoxide: 161.53 μg/m3
Nitrogen Dioxide: 2.69 μg/m3
Sulphur Dioxide: 1.25 μg/m3
Ozone: 90.04 μg/m3

Astronomical

Sunrise: 6:13 AM
Sun Transit: 1:05 PM
Sunset: 7:59 PM
Daylight: 13 hrs 46 mins
Moonrise: 5:35 AM
Moon Transit: 12:25 AM
Moonset: 7:33 PM
Moon Phase: New
Moon Illumination: 0.8%

Best Times for Fishing or Hunting

Major Periods

8:00 PM - 10:30 PM
11:55 AM - 2:25 PM

Minor Periods

7:03 PM - 8:33 PM
5:05 AM - 6:35 AM

Action Rating: 5 out of 5

Friday, April 17, 2026

Weather Forecast

Freezing fog
33°F
26.8°F
29.6°F
94%
0.01 in
80%
25%
4.3 mph
0.8


Air Quality

AQI: 1 - Good
PM2.5: 4.96 μg/m3
PM10: 6.41 μg/m3
Carbon Monoxide: 157.52 μg/m3
Nitrogen Dioxide: 2.63 μg/m3
Sulphur Dioxide: 1.34 μg/m3
Ozone: 93.96 μg/m3

Astronomical

Sunrise: 6:11 AM
Sun Transit: 1:05 PM
Sunset: 8:00 PM
Daylight: 13 hrs 49 mins
Moonrise: 5:55 AM
Moon Transit: 1:17 PM
Moonset: 9:01 PM
Moon Phase: New
Moon Illumination: 4.1%

Best Times for Fishing or Hunting

Major Periods

8:54 PM - 11:24 PM
12:47 AM - 3:17 PM

Minor Periods

8:31 PM - 10:01 PM
5:25 AM - 6:55 AM

Action Rating: 3 out of 5

Saturday, April 18, 2026

Weather Forecast

Partly Cloudy
44°F
26.3°F
36.2°F
92%
0 in
0%
0%
5.6 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 6.83 μg/m3
PM10: 9.58 μg/m3
Carbon Monoxide: 162.01 μg/m3
Nitrogen Dioxide: 3 μg/m3
Sulphur Dioxide: 1.11 μg/m3
Ozone: 96.69 μg/m3

Astronomical

Sunrise: 6:09 AM
Sun Transit: 1:04 PM
Sunset: 8:02 PM
Daylight: 13 hrs 52 mins
Moonrise: 6:19 AM
Moon Transit: 2:14 PM
Moonset: 10:31 PM
Moon Phase: New
Moon Illumination: 1.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
1:44 PM - 4:14 PM

Minor Periods

10:01 PM - 11:31 PM
5:49 AM - 7:19 AM

Action Rating: 4 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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