Water Temperature of the Cascade River in Marblemount, WA

Current Water Temperature

54.9°F

Measurement Time: Tuesday, July 8, 2025, 8:45 PM 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

54.5°F
Fog
Conditions: Fog
Humidity: 97%
Feels Like: 53°F
Wind: SSW 2.5 mph
Wind Gusts: 5.2 mph
Pressure: 30.03 in
Precipitation: 0 in
Cloud Cover: 100%
Visibility: 0 mi
UV Index: 0

Five Day Weather Forecast

Heavy rain
Wed
H: 60°F
L: 49°F
Patchy rain nearby
Thu
H: 62°F
L: 47°F
Sunny
Fri
H: 69°F
L: 56°F
Sunny
Sat
H: 73°F
L: 46°F
Sunny
Sun
H: 77°F
L: 49°F

Air Quality

AQI: 1 - Good
PM2.5: 4.81 μg/m3
PM10: 5.18 μg/m3
Carbon Monoxide: 223.85 μg/m3
Nitrogen Dioxide: 7.22 μg/m3
Sulphur Dioxide: 0.74 μg/m3
Ozone: 34 μg/m3

Astronomical

Sunrise: 5:14 AM
Sun Transit: 1:11 PM
Sunset: 9:07 PM
Daylight: 15 hrs 53 mins
Moonrise: 9:05 PM
Moon Transit: 12:00 AM
Moonset: 3:26 AM
Moon Phase: Full
Moon Illumination: 99.6%

Best Times for Fishing or Hunting

Major Periods

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

Minor Periods

8:35 PM - 10:05 PM
2:56 AM - 4:26 AM

Action Rating: 3 out of 5

Red Flag Warning issued July 8 at 11:57AM PDT until July 9 at 8:00PM PDT by NWS Spokane WA

Effective: Tue July 8, 2025, 11:57 AM
Expires: Tue July 8, 2025, 10:00 PM

...HOT, DRY, AND WINDY TUESDAY AND WEDNESDAY... .Hot and very dry conditions will be in place on Tuesday. Winds will increase through the day with gusts 15 to 25 mph from the East Slopes to the Palouse. Locally stronger winds will develop late Tuesday afternoon and evening in the foothills of the Cascades and across the Waterville Plateau producing gusts around 30 mph. Winds will decrease Tuesday night. A dry cold front will sweep through the region on Wednesday delivering stronger winds region- wide. Humidity levels increase on Wednesday but remain near critical levels. * Affected Area: Colville Reservation (Zone 702), Okanogan Valley (Zone 703), Foothills of Central Washington Cascades (Zone 705) and Waterville Plateau (Zone 706). * Winds: Tuesday: West 15 to 20 mph with gusts to 25 mph increasing to 30 mph in the evening. Wednesday: West 20 to 30 mph with gusts up to 40 mph. * Relative Humidities: 8 to 15 percent on Tuesday. 18 to 27 percent on Wednesday. * Impacts: Rapid fire spread is likely with any new 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 8 at 10:17PM PDT until July 9 at 8:00PM PDT by NWS Spokane WA

Effective: Tue July 8, 2025, 10:17 PM
Expires: Wed July 9, 2025, 6:30 AM

...HOT, DRY, AND WINDY THROUGH WEDNESDAY... * Affected Area: Colville Reservation (Zone 702), Okanogan Valley (Zone 703), Foothills of Central Washington Cascades (Zone 705) and Waterville Plateau (Zone 706). * Winds: West 20 to 30 mph with gusts up to 40 mph. * Relative Humidities: 18 to 27 percent. * Impacts: Rapid fire spread is likely with any new 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.


Wednesday, July 9, 2025

Weather Forecast

Conditions: Heavy rain
Average Temperature: 53.1°F
Average Humidity: 96%
Chance of Rain: 81%
Wind: 4.3 mph
UV Index: 0.2

Air Quality

AQI: 1 - Good
PM2.5: 9.69 μg/m3
PM10: 10.2 μg/m3
Carbon Monoxide: 224.81 μg/m3
Nitrogen Dioxide: 7.65 μg/m3
Sulphur Dioxide: 1.25 μg/m3
Ozone: 59.16 μg/m3

Astronomical

Sunrise: 5:14 AM
Sun Transit: 1:11 PM
Sunset: 9:07 PM
Daylight: 15 hrs 53 mins
Moonrise: 9:05 PM
Moon Transit: 12:00 AM
Moonset: 3:26 AM
Moon Phase: Full
Moon Illumination: 99.6%

Best Times for Fishing or Hunting

Major Periods

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

Minor Periods

8:35 PM - 10:05 PM
2:56 AM - 4:26 AM

Action Rating: 3 out of 5

Thursday, July 10, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 54.8°F
Average Humidity: 79%
Chance of Rain: 88%
Wind: 4.3 mph
UV Index: 1.5

Air Quality

AQI: 1 - Good
PM2.5: 5.55 μg/m3
PM10: 6.47 μg/m3
Carbon Monoxide: 223.78 μg/m3
Nitrogen Dioxide: 3.94 μg/m3
Sulphur Dioxide: 0.46 μg/m3
Ozone: 53.32 μg/m3

Astronomical

Sunrise: 5:15 AM
Sun Transit: 1:11 PM
Sunset: 9:07 PM
Daylight: 15 hrs 52 mins
Moonrise: 9:44 PM
Moon Transit: 12:45 AM
Moonset: 4:30 AM
Moon Phase: Full
Moon Illumination: 99.8%

Best Times for Fishing or Hunting

Major Periods

12:15 AM - 2:45 AM
8:22 AM - 10:52 AM

Minor Periods

9:14 PM - 10:44 PM
4:00 AM - 5:30 AM

Action Rating: 5 out of 5

Friday, July 11, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 61.8°F
Average Humidity: 66%
Chance of Rain: 0%
Wind: 5.8 mph
UV Index: 2.4

Air Quality

AQI: 1 - Good
PM2.5: 12.11 μg/m3
PM10: 12.72 μg/m3
Carbon Monoxide: 232.06 μg/m3
Nitrogen Dioxide: 8.15 μg/m3
Sulphur Dioxide: 0.44 μg/m3
Ozone: 64 μg/m3

Astronomical

Sunrise: 5:16 AM
Sun Transit: 1:11 PM
Sunset: 9:06 PM
Daylight: 15 hrs 50 mins
Moonrise: 10:13 PM
Moon Transit: 1:39 AM
Moonset: 5:42 AM
Moon Phase: Full
Moon Illumination: 97.4%

Best Times for Fishing or Hunting

Major Periods

1:09 AM - 3:39 AM
9:15 AM - 11:45 AM

Minor Periods

9:43 PM - 11:13 PM
5:12 AM - 6:42 AM

Action Rating: 4 out of 5

Saturday, July 12, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 59.2°F
Average Humidity: 73%
Chance of Rain: 0%
Wind: 6.3 mph
UV Index: 2.1

Air Quality

AQI: 1 - Good
PM2.5: 9.3 μg/m3
PM10: 10.12 μg/m3
Carbon Monoxide: 221.04 μg/m3
Nitrogen Dioxide: 6.51 μg/m3
Sulphur Dioxide: 1.08 μg/m3
Ozone: 68.52 μg/m3

Astronomical

Sunrise: 5:17 AM
Sun Transit: 1:11 PM
Sunset: 9:05 PM
Daylight: 15 hrs 48 mins
Moonrise: 10:36 PM
Moon Transit: 2:32 AM
Moonset: 7:00 AM
Moon Phase: Full
Moon Illumination: 92.7%

Best Times for Fishing or Hunting

Major Periods

2:02 AM - 4:32 AM
10:07 AM - 12:37 AM

Minor Periods

10:06 PM - 11:36 PM
6:30 AM - 8:00 AM

Action Rating: 3 out of 5

Sunday, July 13, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 61.2°F
Average Humidity: 70%
Chance of Rain: 0%
Wind: 6.7 mph
UV Index: 0

Air Quality

AQI: 1 - Good
PM2.5: 12.65 μg/m3
PM10: 14.4 μg/m3
Carbon Monoxide: 262.42 μg/m3
Nitrogen Dioxide: 10.4 μg/m3
Sulphur Dioxide: 1.11 μg/m3
Ozone: 71.85 μg/m3

Astronomical

Sunrise: 5:18 AM
Sun Transit: 1:11 PM
Sunset: 9:04 PM
Daylight: 15 hrs 46 mins
Moonrise: 10:54 PM
Moon Transit: 3:22 AM
Moonset: 8:20 AM
Moon Phase: Waning Gibbous
Moon Illumination: 85.7%

Best Times for Fishing or Hunting

Major Periods

2:52 AM - 5:22 AM
10:56 AM - 1:26 PM

Minor Periods

10:24 PM - 11:54 PM
7:50 AM - 9:20 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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