Water Temperature of the Skagit River in Marblemount, WA

Current Water Temperature

51.6°F

Measurement Time: Saturday, July 18, 2026, 1:00 AM PDT

Temperature Locations

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Local Points of Interest

Cascade River; Pressentin County Park

Skagit River

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

Elevation Above Sea Level: 325 feet

Nearest Address:
60318 N Cascades Hwy
Marblemount, WA 98267
Skagit County

GPS Coordinates: 48.5337306, -121.4298499

Nearby Water Temperatures

Cascade River, Marblemount, WA (0.8 mi)
Bacon Creek, Marblemount, WA (5.1 mi)
Sauk River, Concrete, WA (9.9 mi)
Skagit River, Newhalem, WA (12.7 mi)
Sauk River, Darrington, WA (20.9 mi)
Big Beaver Creek, Diablo, WA (23.4 mi)
Ruby Creek, Newhalem, WA (23.9 mi)
Sauk River, Darrington, WA (25.3 mi)
North Fork Nooksack River, Glacier, WA (31.9 mi)
Skookum Creek, Doran, WA (33.8 mi)
South Fork Nooksack River, Doran, WA (35.1 mi)
South Fork Sultan River, Sultan, WA (41.5 mi)
Skagit River, Burlington, WA (41.9 mi)
Sultan River, Lake Roesiger, WA (43.1 mi)
Nooksack River, Cedarville, WA (44.8 mi)

Weather for Marblemount, Washington

Current Weather

48°F
Sunny
Sunny
39.4°F
48°F
91%
WSW 2.7 mph
3.6 mph
45.8°F
45.5°F
0 in
0%
6 mi
1018 mbar
1.2

Five Day Weather Forecast

Sunny
Sat
H: 68°F
L: 44°F
Sunny
Sun
H: 73°F
L: 48°F
Sunny
Mon
H: 80°F
L: 55°F
Sunny
Tue
H: 85°F
L: 60°F
Sunny
Wed
H: 87°F
L: 62°F

Air Quality

AQI: 1 - Good
PM2.5: 5.7 μg/m3
PM10: 6.4 μg/m3
Carbon Monoxide: 95 μg/m3
Nitrogen Dioxide: 1.5 μg/m3
Sulphur Dioxide: 0.5 μg/m3
Ozone: 80 μg/m3

Astronomical

Sunrise: 5:23 AM
Sun Transit: 1:12 PM
Sunset: 9:00 PM
Daylight: 15 hrs 37 mins
Moonrise: 10:52 AM
Moon Transit: 5:04 PM
Moonset: 11:03 PM
Moon Phase: Waxing Crescent
Moon Illumination: 13.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
4:34 PM - 7:04 PM

Minor Periods

12:00 AM - 12:00 AM
10:22 AM - 11:52 AM

Action Rating: 2 out of 5

Red Flag Warning issued July 17 at 9:08PM PDT until July 18 at 9:00PM PDT by NWS Spokane WA

Effective: Fri July 17, 2026, 9:08 PM
Expires: Sat July 18, 2026, 1:00 PM

...RED FLAG WARNING IN EFFECT FOR PORTIONS OF CENTRAL WASHINGTON SATURDAY AFTERNOON FOR WIND AND LOW RELATIVE HUMIDITY... Dry and breezy conditions are expected on the Waterville Plateau and Colville Reservation Saturday afternoon and evening. Rapid fire spread is likely with any new or ongoing fires. Evening Cascade gap winds will increase relative humidity above critical levels. ...RED FLAG WARNING IN EFFECT FROM NOON TO 9 PM PDT SATURDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 706... The National Weather Service in Spokane has issued a Red Flag Warning for wind and low relative humidity, which is in effect from noon to 9 PM PDT Saturday. * Affected Area: Waterville Plateau (Zone 706). * Winds: West 10 to 20 mph with gusts up to 30 mph. * Relative Humidities: 12 to 23 percent. * Impacts: Rapid fire spread is likely with any new or ongoing 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.
Saturday, July 18, 2026

Weather Forecast

Sunny
67.7°F
43.5°F
52.6°F
78%
0 in
9%
0%
6.3 mph
8


Air Quality

AQI: 1 - Good
PM2.5: 4.42 μg/m3
PM10: 5.1 μg/m3
Carbon Monoxide: 95 μg/m3
Nitrogen Dioxide: 3.34 μg/m3
Sulphur Dioxide: 0.43 μg/m3
Ozone: 76.38 μg/m3

Astronomical

Sunrise: 5:23 AM
Sun Transit: 1:12 PM
Sunset: 9:00 PM
Daylight: 15 hrs 37 mins
Moonrise: 10:52 AM
Moon Transit: 5:04 PM
Moonset: 11:03 PM
Moon Phase: Waxing Crescent
Moon Illumination: 13.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
4:34 PM - 7:04 PM

Minor Periods

12:00 AM - 12:00 AM
10:22 AM - 11:52 AM

Action Rating: 2 out of 5

Sunday, July 19, 2026

Weather Forecast

Sunny
73.3°F
47.8°F
60.2°F
59%
0 in
3%
0%
5.4 mph
8


Air Quality

AQI: 1 - Good
PM2.5: 4.6 μg/m3
PM10: 5.06 μg/m3
Carbon Monoxide: 95.58 μg/m3
Nitrogen Dioxide: 4.08 μg/m3
Sulphur Dioxide: 0.59 μg/m3
Ozone: 76.79 μg/m3

Astronomical

Sunrise: 5:24 AM
Sun Transit: 1:12 PM
Sunset: 8:59 PM
Daylight: 15 hrs 35 mins
Moonrise: 12:07 AM
Moon Transit: 5:48 PM
Moonset: 12:03 AM
Moon Phase: Waxing Crescent
Moon Illumination: 22.6%

Best Times for Fishing or Hunting

Major Periods

12:37 AM - 3:07 AM
5:18 PM - 7:48 PM

Minor Periods

11:37 AM - 1:07 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Monday, July 20, 2026

Weather Forecast

Sunny
80°F
55.2°F
67.7°F
49%
0 in
4%
0%
5.1 mph
5.5


Air Quality

AQI: 1 - Good
PM2.5: 5.75 μg/m3
PM10: 6.11 μg/m3
Carbon Monoxide: 99.33 μg/m3
Nitrogen Dioxide: 4.79 μg/m3
Sulphur Dioxide: 0.61 μg/m3
Ozone: 77.21 μg/m3

Astronomical

Sunrise: 5:25 AM
Sun Transit: 1:12 PM
Sunset: 8:58 PM
Daylight: 15 hrs 33 mins
Moonrise: 1:19 PM
Moon Transit: 6:31 PM
Moonset: 12:17 AM
Moon Phase: Waxing Crescent
Moon Illumination: 32.7%

Best Times for Fishing or Hunting

Major Periods

1:21 AM - 3:51 AM
6:01 PM - 8:31 PM

Minor Periods

12:49 AM - 2:19 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Tuesday, July 21, 2026

Weather Forecast

Sunny
84.5°F
59.6°F
71.4°F
43%
0 in
2%
0%
5.6 mph
8.4


Air Quality

AQI: 1 - Good
PM2.5: 6.89 μg/m3
PM10: 7.24 μg/m3
Carbon Monoxide: 109.2 μg/m3
Nitrogen Dioxide: 4.91 μg/m3
Sulphur Dioxide: 0.91 μg/m3
Ozone: 89.67 μg/m3

Astronomical

Sunrise: 5:26 AM
Sun Transit: 1:12 PM
Sunset: 8:57 PM
Daylight: 15 hrs 31 mins
Moonrise: 2:31 PM
Moon Transit: 7:16 PM
Moonset: 12:33 AM
Moon Phase: First Quarter
Moon Illumination: 43.7%

Best Times for Fishing or Hunting

Major Periods

2:04 AM - 4:34 AM
6:46 PM - 9:16 PM

Minor Periods

2:01 PM - 3:31 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Wednesday, July 22, 2026

Weather Forecast

Sunny
86.7°F
61.6°F
74°F
40%
0 in
2%
0%
5.1 mph
8


Air Quality

AQI: 1 - Good
PM2.5: 9.47 μg/m3
PM10: 9.87 μg/m3
Carbon Monoxide: 146.33 μg/m3
Nitrogen Dioxide: 8.58 μg/m3
Sulphur Dioxide: 1.2 μg/m3
Ozone: 89.17 μg/m3

Astronomical

Sunrise: 5:28 AM
Sun Transit: 1:12 PM
Sunset: 8:56 PM
Daylight: 15 hrs 28 mins
Moonrise: 3:42 PM
Moon Transit: 8:02 PM
Moonset: 12:52 AM
Moon Phase: First Quarter
Moon Illumination: 55.0%

Best Times for Fishing or Hunting

Major Periods

2:49 AM - 5:19 AM
7:32 PM - 10:02 PM

Minor Periods

3:12 PM - 4:42 PM
12:00 AM - 12:00 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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