Water Temperature of the Cascade River in Marblemount, WA

Current Water Temperature

55.0°F

Measurement Time: Wednesday, June 17, 2026, 8:45 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

52.8°F
Sunny
Sunny
47.5°F
52.8°F
77%
W 6.3 mph
7.5 mph
49.4°F
46°F
0 in
0%
6 mi
1015 mbar
5.6

Five Day Weather Forecast

Sunny
Wed
H: 53°F
L: 41°F
Sunny
Thu
H: 73°F
L: 43°F
Sunny
Fri
H: 73°F
L: 53°F
Sunny
Sat
H: 68°F
L: 48°F
Sunny
Sun
H: 73°F
L: 49°F

Air Quality

AQI: 1 - Good
PM2.5: 3.2 μg/m3
PM10: 4.8 μg/m3
Carbon Monoxide: 95 μg/m3
Nitrogen Dioxide: 0.4 μg/m3
Sulphur Dioxide: 0.7 μg/m3
Ozone: 75 μg/m3

Astronomical

Sunrise: 5:03 AM
Sun Transit: 1:06 PM
Sunset: 9:10 PM
Daylight: 16 hrs 7 mins
Moonrise: 7:50 AM
Moon Transit: 4:00 PM
Moonset: 12:18 AM
Moon Phase: Waxing Crescent
Moon Illumination: 4.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
3:30 PM - 6:00 PM

Minor Periods

7:20 AM - 8:50 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Red Flag Warning issued June 16 at 10:38PM PDT until June 17 at 9:00PM PDT by NWS Pendleton OR

Effective: Tue June 16, 2026, 10:38 PM
Expires: Wed June 17, 2026, 4:00 PM

...Critical Fire Weather Conditions Wednesday... Breezy northwesterly to northerly winds coupled with very low relative humidity and dry fuels will facilitate conditions conducive to wildfire spread Wednesday. Relative humidities have risen above Red Flag thresholds, so the warning will be allowed to expire at 11 PM this evening. ...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM TO 9 PM PDT WEDNESDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE WA690... * AFFECTED AREA...Fire Weather Zone 690 Kittitas Valley. * TIMING...From 11 AM to 9 PM PDT Wednesday. * WINDS...Northwest 20 to 30 mph with gusts up to 40 mph. * RELATIVE HUMIDITY...As low as 15 percent. * IMPACTS...Any fire that develops will catch and spread quickly. Outdoor burning is not recommended.

A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior.


Red Flag Warning issued June 16 at 10:38PM PDT until June 16 at 11:00PM PDT by NWS Pendleton OR

Effective: Tue June 16, 2026, 10:38 PM
Expires: Wed June 17, 2026, 4:00 PM

...Critical Fire Weather Conditions Wednesday... Breezy northwesterly to northerly winds coupled with very low relative humidity and dry fuels will facilitate conditions conducive to wildfire spread Wednesday. Relative humidities have risen above Red Flag thresholds, so the warning will be allowed to expire at 11 PM this evening. ...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM TO 9 PM PDT WEDNESDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE WA690... * AFFECTED AREA...Fire Weather Zone 690 Kittitas Valley. * TIMING...From 11 AM to 9 PM PDT Wednesday. * WINDS...Northwest 20 to 30 mph with gusts up to 40 mph. * RELATIVE HUMIDITY...As low as 15 percent. * IMPACTS...Any fire that develops will catch and spread quickly. Outdoor burning is not recommended.

A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior.
Wednesday, June 17, 2026

Weather Forecast

Sunny
53.1°F
41.4°F
47°F
78%
0 in
9%
0%
6.3 mph
9.5


Air Quality

AQI: 1 - Good
PM2.5: 3.33 μg/m3
PM10: 4.57 μg/m3
Carbon Monoxide: 98.04 μg/m3
Nitrogen Dioxide: 2.92 μg/m3
Sulphur Dioxide: 0.64 μg/m3
Ozone: 63 μg/m3

Astronomical

Sunrise: 5:03 AM
Sun Transit: 1:06 PM
Sunset: 9:10 PM
Daylight: 16 hrs 7 mins
Moonrise: 7:50 AM
Moon Transit: 4:00 PM
Moonset: 12:18 AM
Moon Phase: Waxing Crescent
Moon Illumination: 4.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
3:30 PM - 6:00 PM

Minor Periods

7:20 AM - 8:50 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Thursday, June 18, 2026

Weather Forecast

Sunny
73°F
42.6°F
58.7°F
47%
0 in
1%
0%
5.4 mph
9.1


Air Quality

AQI: 1 - Good
PM2.5: 3.64 μg/m3
PM10: 4.33 μg/m3
Carbon Monoxide: 96.92 μg/m3
Nitrogen Dioxide: 3.44 μg/m3
Sulphur Dioxide: 0.7 μg/m3
Ozone: 70.88 μg/m3

Astronomical

Sunrise: 5:03 AM
Sun Transit: 1:06 PM
Sunset: 9:11 PM
Daylight: 16 hrs 7 mins
Moonrise: 9:17 AM
Moon Transit: 4:53 PM
Moonset: 12:48 AM
Moon Phase: Waxing Crescent
Moon Illumination: 10.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
4:23 PM - 6:53 PM

Minor Periods

8:47 AM - 10:17 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Friday, June 19, 2026

Weather Forecast

Sunny
72.9°F
53°F
62.7°F
50%
0 in
3%
0%
6 mph
7.6


Air Quality

AQI: 1 - Good
PM2.5: 5.22 μg/m3
PM10: 5.7 μg/m3
Carbon Monoxide: 99.88 μg/m3
Nitrogen Dioxide: 3.77 μg/m3
Sulphur Dioxide: 0.83 μg/m3
Ozone: 79.42 μg/m3

Astronomical

Sunrise: 5:03 AM
Sun Transit: 1:07 PM
Sunset: 9:11 PM
Daylight: 16 hrs 8 mins
Moonrise: 10:40 AM
Moon Transit: 5:42 PM
Moonset: 12:10 AM
Moon Phase: Waxing Crescent
Moon Illumination: 18.3%

Best Times for Fishing or Hunting

Major Periods

12:28 AM - 2:58 AM
5:12 PM - 7:42 PM

Minor Periods

10:10 AM - 11:40 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Saturday, June 20, 2026

Weather Forecast

Sunny
67.5°F
47.6°F
57.4°F
66%
0 in
7%
0%
6.7 mph
8.8


Air Quality

AQI: 1 - Good
PM2.5: 7.55 μg/m3
PM10: 9.29 μg/m3
Carbon Monoxide: 100.04 μg/m3
Nitrogen Dioxide: 2.63 μg/m3
Sulphur Dioxide: 1.04 μg/m3
Ozone: 82.92 μg/m3

Astronomical

Sunrise: 5:03 AM
Sun Transit: 1:07 PM
Sunset: 9:11 PM
Daylight: 16 hrs 8 mins
Moonrise: 11:57 AM
Moon Transit: 6:27 PM
Moonset: 12:28 AM
Moon Phase: Waxing Crescent
Moon Illumination: 27.8%

Best Times for Fishing or Hunting

Major Periods

1:15 AM - 3:45 AM
5:57 PM - 8:27 PM

Minor Periods

11:27 AM - 12:57 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Sunday, June 21, 2026

Weather Forecast

Sunny
73.4°F
49.4°F
61.6°F
53%
0 in
2%
0%
6 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 5.87 μg/m3
PM10: 7.95 μg/m3
Carbon Monoxide: 118.17 μg/m3
Nitrogen Dioxide: 6.68 μg/m3
Sulphur Dioxide: 0.7 μg/m3
Ozone: 58 μg/m3

Astronomical

Sunrise: 5:04 AM
Sun Transit: 1:07 PM
Sunset: 9:11 PM
Daylight: 16 hrs 8 mins
Moonrise: 1:10 PM
Moon Transit: 7:10 PM
Moonset: 12:43 AM
Moon Phase: First Quarter
Moon Illumination: 38.5%

Best Times for Fishing or Hunting

Major Periods

2:00 AM - 4:30 AM
6:40 PM - 9:10 PM

Minor Periods

12:40 AM - 2:10 PM
12:13 AM - 1:43 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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