Water Temperature of the Cascade River in Marblemount, WA

Current Water Temperature

56.5°F

Measurement Time: Friday, July 18, 2025, 9:45 AM PDT

Temperature Locations

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Local Points of Interest

Skagit River

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Cascade River

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

Elevation Above Sea Level: 348 feet / 106 meters

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

58.2°F
Overcast
Conditions: Overcast
Humidity: 78%
Feels Like: 57°F
Wind: W 3.8 mph
Wind Gusts: 5.3 mph
Pressure: 29.93 in
Precipitation: 0 in
Cloud Cover: 94%
Visibility: 6 mi
UV Index: 2.3

Five Day Weather Forecast

Overcast
Fri
H: 64°F
L: 56°F
Mist
Sat
H: 51°F
L: 46°F
Cloudy
Sun
H: 57°F
L: 43°F
Moderate rain
Mon
H: 70°F
L: 53°F
Patchy rain nearby
Tue
H: 77°F
L: 48°F

Air Quality

AQI: 1 - Good
PM2.5: 16.1 μg/m3
PM10: 17.76 μg/m3
Carbon Monoxide: 259 μg/m3
Nitrogen Dioxide: 10.55 μg/m3
Sulphur Dioxide: 1.48 μg/m3
Ozone: 69 μg/m3

Astronomical

Sunrise: 5:23 AM
Sun Transit: 1:12 PM
Sunset: 9:00 PM
Daylight: 15 hrs 37 mins
Moonrise: 12:59 AM
Moon Transit: 7:20 AM
Moonset: 3:01 PM
Moon Phase: Last Quarter
Moon Illumination: 33.4%

Best Times for Fishing or Hunting

Major Periods

6:50 AM - 9:20 AM
2:55 PM - 5:25 PM

Minor Periods

2:31 PM - 4:01 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Red Flag Warning issued July 17 at 12:23PM PDT until July 18 at 10:00PM PDT by NWS Pendleton OR

Effective: Thu July 17, 2025, 12:23 PM
Expires: Fri July 18, 2025, 10:00 PM

...DRY AND BREEZY TO WINDY CONDITIONS EXPECTED ACROSS PORTIONS OF CENTRAL AND EASTERN OREGON AND SOUTH CENTRAL WASHINGTON THROUGH FRIDAY... .Warm, dry, and breezy to windy conditions are expected through Friday across portions of central and eastern Oregon and central Washington, especially through the Cascade gaps. Afternoon relative humidity will be low to very low, and overnight relative humidity recovery is forecast to be poor to moderate. Strongest winds are expected Friday. The National Weather Service in Pendleton has issued a Red Flag Warning for wind and low relative humidity, which is in effect from 1 PM to 10 PM PDT Friday. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...Fire Weather Zone 690 Kittitas Valley. * TIMING...From 1 PM to 10 PM PDT Friday. * WINDS...West 15 to 25 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 July 17 at 7:38PM PDT until July 18 at 10:00PM PDT by NWS Spokane WA

Effective: Thu July 17, 2025, 7:38 PM
Expires: Fri July 18, 2025, 2:00 PM

* Affected Area: Foothills of Central Washington Cascades (Zone 705), Waterville Plateau (Zone 706), Western Columbia Basin (Zone 707), Eastern Columbia Basin -Palouse -Spokane Area (Zone 708) and Lower Palouse -Snake River (Zone 709). * Winds: West to Southwest 10 to 20 mph with gusts up to 35 mph, except 15 to 25 mph with gusts up to 40 MPH on the Waterville Plateau. * Relative Humidities: 11 to 20 percent. * Impacts: Rapid fire spread is likely with any new or existing fires.

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 July 17 at 12:23PM PDT until July 18 at 10:00PM PDT by NWS Pendleton OR

Effective: Thu July 17, 2025, 12:23 PM
Expires: Fri July 18, 2025, 10:00 PM

...DRY AND BREEZY TO WINDY CONDITIONS EXPECTED ACROSS PORTIONS OF CENTRAL AND EASTERN OREGON AND SOUTH CENTRAL WASHINGTON THROUGH FRIDAY... .Warm, dry, and breezy to windy conditions are expected through Friday across portions of central and eastern Oregon and central Washington, especially through the Cascade gaps. Afternoon relative humidity will be low to very low, and overnight relative humidity recovery is forecast to be poor to moderate. Strongest winds are expected Friday. The National Weather Service in Pendleton has issued a Red Flag Warning for wind and low relative humidity, which is in effect from 1 PM to 10 PM PDT Friday. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...Fire Weather Zone 690 Kittitas Valley. * TIMING...From 1 PM to 10 PM PDT Friday. * WINDS...West 15 to 25 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 July 17 at 7:38PM PDT until July 18 at 10:00PM PDT by NWS Spokane WA

Effective: Thu July 17, 2025, 7:38 PM
Expires: Fri July 18, 2025, 2:00 PM

* Affected Area: Foothills of Central Washington Cascades (Zone 705), Waterville Plateau (Zone 706), Western Columbia Basin (Zone 707), Eastern Columbia Basin -Palouse -Spokane Area (Zone 708) and Lower Palouse -Snake River (Zone 709). * Winds: West to Southwest 10 to 20 mph with gusts up to 35 mph, except 15 to 25 mph with gusts up to 40 MPH on the Waterville Plateau. * Relative Humidities: 11 to 20 percent. * Impacts: Rapid fire spread is likely with any new or existing fires.

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.


Friday, July 18, 2025

Weather Forecast

Conditions: Overcast
Average Temperature: 60.1°F
Average Humidity: 79%
Chance of Rain: 0%
Wind: 7.2 mph
UV Index: 1.5

Air Quality

AQI: 1 - Good
PM2.5: 15.27 μg/m3
PM10: 16.36 μg/m3
Carbon Monoxide: 268.69 μg/m3
Nitrogen Dioxide: 6.9 μg/m3
Sulphur Dioxide: 2.01 μg/m3
Ozone: 97.04 μg/m3

Astronomical

Sunrise: 5:23 AM
Sun Transit: 1:12 PM
Sunset: 9:00 PM
Daylight: 15 hrs 37 mins
Moonrise: 12:59 AM
Moon Transit: 7:20 AM
Moonset: 3:01 PM
Moon Phase: Last Quarter
Moon Illumination: 33.4%

Best Times for Fishing or Hunting

Major Periods

6:50 AM - 9:20 AM
2:55 PM - 5:25 PM

Minor Periods

2:31 PM - 4:01 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Saturday, July 19, 2025

Weather Forecast

Conditions: Mist
Average Temperature: 50.2°F
Average Humidity: 93%
Chance of Rain: 0%
Wind: 6 mph
UV Index: 1.5

Air Quality

AQI: 1 - Good
PM2.5: 11.82 μg/m3
PM10: 13.31 μg/m3
Carbon Monoxide: 232.51 μg/m3
Nitrogen Dioxide: 5.39 μg/m3
Sulphur Dioxide: 0.84 μg/m3
Ozone: 74.56 μg/m3

Astronomical

Sunrise: 5:24 AM
Sun Transit: 1:12 PM
Sunset: 8:59 PM
Daylight: 15 hrs 35 mins
Moonrise: 12:21 AM
Moon Transit: 8:14 AM
Moonset: 4:27 PM
Moon Phase: Last Quarter
Moon Illumination: 23.2%

Best Times for Fishing or Hunting

Major Periods

7:44 AM - 10:14 AM
3:51 PM - 6:21 PM

Minor Periods

3:57 PM - 5:27 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Sunday, July 20, 2025

Weather Forecast

Conditions: Cloudy
Average Temperature: 51°F
Average Humidity: 81%
Chance of Rain: 0%
Wind: 6.3 mph
UV Index: 2.1

Air Quality

AQI: 1 - Good
PM2.5: 9.52 μg/m3
PM10: 10.37 μg/m3
Carbon Monoxide: 231.99 μg/m3
Nitrogen Dioxide: 6.31 μg/m3
Sulphur Dioxide: 0.41 μg/m3
Ozone: 76.4 μg/m3

Astronomical

Sunrise: 5:25 AM
Sun Transit: 1:12 PM
Sunset: 8:58 PM
Daylight: 15 hrs 32 mins
Moonrise: 12:50 AM
Moon Transit: 9:12 AM
Moonset: 5:51 PM
Moon Phase: Waning Crescent
Moon Illumination: 14.4%

Best Times for Fishing or Hunting

Major Periods

8:42 AM - 11:12 AM
4:51 PM - 7:21 PM

Minor Periods

5:21 PM - 6:51 PM
12:20 AM - 1:50 AM

Action Rating: 2 out of 5

Monday, July 21, 2025

Weather Forecast

Conditions: Moderate rain
Average Temperature: 60.5°F
Average Humidity: 77%
Chance of Rain: 76%
Wind: 4.7 mph
UV Index: 1.7

Air Quality

AQI: 1 - Good
PM2.5: 12.45 μg/m3
PM10: 13.25 μg/m3
Carbon Monoxide: 234.88 μg/m3
Nitrogen Dioxide: 6.41 μg/m3
Sulphur Dioxide: 0.55 μg/m3
Ozone: 74.6 μg/m3

Astronomical

Sunrise: 5:27 AM
Sun Transit: 1:12 PM
Sunset: 8:57 PM
Daylight: 15 hrs 30 mins
Moonrise: 1:30 AM
Moon Transit: 10:14 AM
Moonset: 7:07 PM
Moon Phase: Waning Crescent
Moon Illumination: 7.4%

Best Times for Fishing or Hunting

Major Periods

5:54 PM - 8:24 PM
9:44 AM - 12:14 AM

Minor Periods

6:37 PM - 8:07 PM
1:00 AM - 2:30 AM

Action Rating: 2 out of 5

Tuesday, July 22, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 62.7°F
Average Humidity: 68%
Chance of Rain: 84%
Wind: 4.7 mph
UV Index: 2.1

Air Quality

AQI: 1 - Good
PM2.5: 8.82 μg/m3
PM10: 9.18 μg/m3
Carbon Monoxide: 285.61 μg/m3
Nitrogen Dioxide: 9.69 μg/m3
Sulphur Dioxide: 0.53 μg/m3
Ozone: 62 μg/m3

Astronomical

Sunrise: 5:28 AM
Sun Transit: 1:12 PM
Sunset: 8:56 PM
Daylight: 15 hrs 28 mins
Moonrise: 2:26 AM
Moon Transit: 11:18 AM
Moonset: 8:07 PM
Moon Phase: Waning Crescent
Moon Illumination: 2.6%

Best Times for Fishing or Hunting

Major Periods

6:57 PM - 9:27 PM
10:48 AM - 1:18 PM

Minor Periods

7:37 PM - 9:07 PM
1:56 AM - 3:26 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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