Water Temperature of the South Fork Sultan River in Sultan, WA

Current Water Temperature

37.4°F

Measurement Time: Sunday, March 15, 2026, 10:00 PM PDT

Temperature Locations

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Local Points of Interest

Spada Lake; Henry M. Jackson Hydro Electric Project

South Fork Sultan River

Station Name: SOUTH FORK SULTAN RIVER NEAR SULTAN, WA
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 1,486 feet

Nearest Address:
NFS Rd 6129
Sultan, WA 98294
Snohomish County

GPS Coordinates: 47.94732637, -121.6267826

Nearby Water Temperatures

Skykomish River, Gold Bar, WA (7.8 mi)
Sultan River, Lake Roesiger, WA (7.9 mi)
Sultan River, Sultan, WA (9.2 mi)
North Fork Tolt River, Carnation, WA (16.6 mi)
South Fork Tolt River, Baring, WA (16.7 mi)
Sauk River, Darrington, WA (16.9 mi)
North Fork Tolt River, Carnation, WA (17.9 mi)
South Fork Tolt River, Carnation, WA (18.3 mi)
South Fork Tolt River, Stillwater, WA (18.8 mi)
Tolt River, Carnation, WA (19.6 mi)
Sauk River, Darrington, WA (21 mi)
Sauk River, Concrete, WA (33.1 mi)
Canyon Creek, Cedar Falls, WA (37 mi)
Cedar River, Cedar Falls, WA (37.2 mi)
Cedar River, Cedar Falls, WA (37.4 mi)

Weather for Sultan, Washington

Current Weather

41.2°F
Overcast
Overcast
37.6°F
46.8°F
100%
ESE 5.4 mph
11.3 mph
44.5°F
44.3°F
0.1 in
100%
9 mi
1022 mbar
0

Five Day Weather Forecast

Heavy rain
Mon
H: 55°F
L: 40°F
Heavy rain
Tue
H: 50°F
L: 37°F
Heavy rain
Wed
H: 50°F
L: 38°F
Heavy rain
Thu
H: 51°F
L: 42°F
Heavy rain
Fri
H: 52°F
L: 42°F

Air Quality

AQI: 1 - Good
PM2.5: 5.65 μg/m3
PM10: 6.45 μg/m3
Carbon Monoxide: 155.85 μg/m3
Nitrogen Dioxide: 5.25 μg/m3
Sulphur Dioxide: 1.75 μg/m3
Ozone: 75 μg/m3

Astronomical

Sunrise: 7:17 AM
Sun Transit: 12:00 AM
Sunset: 7:14 PM
Daylight: 11 hrs 57 mins
Moonrise: 6:27 AM
Moon Transit: 11:28 AM
Moonset: 4:43 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.6%

Best Times for Fishing or Hunting

Major Periods

7:00 PM - 9:30 PM
10:58 AM - 1:28 PM

Minor Periods

4:13 PM - 5:43 PM
5:57 AM - 7:27 AM

Action Rating: 4 out of 5

Hydrologic Outlook issued March 15 at 3:29PM PDT by NWS Seattle WA

Effective: Sun March 15, 2026, 3:29 PM
Expires: Mon March 16, 2026, 5:00 AM

ESFSEW Moderate to heavy rainfall combined with higher snow levels will lead to rises on the rivers flowing off the central and northern Cascades. Several rivers are forecast to reach Action Stage and a few rivers will be close to flood stage. Rivers will continue to run high through the end of the week then recede over the weekend. Please monitor the latest river forecasts from the National Weather Service for additional information.


Winter Weather Advisory issued March 15 at 8:15PM PDT until March 16 at 2:00AM PDT by NWS Seattle WA

Effective: Sun March 15, 2026, 8:15 PM
Expires: Mon March 16, 2026, 2:00 AM

* WHAT...Snow. Additional snow accumulations up to 3 inches. * WHERE...Cascades of Snohomish and Northern King Counties. * WHEN...Until 2 AM PDT Monday. * IMPACTS...Plan on slippery road conditions. * ADDITIONAL DETAILS...Snow rates may approach up to 1 inch an hour this evening at Stevens Pass. Snow levels will rise overnight which may allow for a brief period of freezing rain.

Slow down and use caution while traveling. Prepare for possible power outages.


Winter Weather Advisory issued March 15 at 8:15PM PDT until March 16 at 2:00AM PDT by NWS Seattle WA

Effective: Sun March 15, 2026, 8:15 PM
Expires: Mon March 16, 2026, 2:00 AM

* WHAT...Wet snow and light freezing rain. Additional snow accumulations up to one inch and total ice accumulations up to 0.05 inches. * WHERE...Cascades of Southern King County. * WHEN...Until 2 AM PDT Monday. * IMPACTS...Plan on slippery road conditions.

Slow down and use caution while traveling. Prepare for possible power outages.


Winter Weather Advisory issued March 15 at 8:15PM PDT until March 16 at 9:00AM PDT by NWS Seattle WA

Effective: Sun March 15, 2026, 8:15 PM
Expires: Mon March 16, 2026, 4:15 AM

* WHAT...Snow. Additional snow accumulations up to 6 inches. * WHERE...Cascades of Whatcom and Skagit Counties. * WHEN...Until 9 AM PDT Monday. * IMPACTS...Plan on slippery road conditions.

Slow down and use caution while traveling. Prepare for possible power outages.
Monday, March 16, 2026

Weather Forecast

Heavy rain
54.9°F
40.2°F
49.4°F
87%
1.16 in
89%
0%
6.5 mph
0.1


Air Quality

AQI: 1 - Good
PM2.5: 5.05 μg/m3
PM10: 6.63 μg/m3
Carbon Monoxide: 154.41 μg/m3
Nitrogen Dioxide: 4.28 μg/m3
Sulphur Dioxide: 1.43 μg/m3
Ozone: 89.72 μg/m3

Astronomical

Sunrise: 7:17 AM
Sun Transit: 12:00 AM
Sunset: 7:14 PM
Daylight: 11 hrs 57 mins
Moonrise: 6:27 AM
Moon Transit: 11:28 AM
Moonset: 4:43 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.6%

Best Times for Fishing or Hunting

Major Periods

7:00 PM - 9:30 PM
10:58 AM - 1:28 PM

Minor Periods

4:13 PM - 5:43 PM
5:57 AM - 7:27 AM

Action Rating: 4 out of 5

Tuesday, March 17, 2026

Weather Forecast

Heavy rain
50°F
36.5°F
46.2°F
93%
2.78 in
87%
0%
6.7 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 5.41 μg/m3
PM10: 6.34 μg/m3
Carbon Monoxide: 154.69 μg/m3
Nitrogen Dioxide: 6.13 μg/m3
Sulphur Dioxide: 1.75 μg/m3
Ozone: 77.56 μg/m3

Astronomical

Sunrise: 7:15 AM
Sun Transit: 12:00 AM
Sunset: 7:15 PM
Daylight: 12 hrs mins
Moonrise: 6:45 AM
Moon Transit: 12:15 AM
Moonset: 6:00 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

7:47 PM - 10:17 PM
11:45 AM - 2:15 PM

Minor Periods

5:30 PM - 7:00 PM
6:15 AM - 7:45 AM

Action Rating: 5 out of 5

Wednesday, March 18, 2026

Weather Forecast

Heavy rain
49.8°F
37.8°F
45.2°F
93%
2.84 in
87%
0%
6.7 mph
2


Air Quality

AQI: 1 - Good
PM2.5: 2.49 μg/m3
PM10: 2.57 μg/m3
Carbon Monoxide: 144.97 μg/m3
Nitrogen Dioxide: 7.7 μg/m3
Sulphur Dioxide: 1.82 μg/m3
Ozone: 63.6 μg/m3

Astronomical

Sunrise: 7:13 AM
Sun Transit: 12:00 AM
Sunset: 7:17 PM
Daylight: 12 hrs 4 mins
Moonrise: 7:00 AM
Moon Transit: 10:31 PM
Moonset: 7:18 PM
Moon Phase: New
Moon Illumination: 2.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:00 AM - 12:00 AM

Minor Periods

6:48 PM - 8:18 PM
6:30 AM - 8:00 AM

Action Rating: 4 out of 5

Thursday, March 19, 2026

Weather Forecast

Heavy rain
50.8°F
41.5°F
47.2°F
98%
1.87 in
72%
0%
6 mph
2


Air Quality

AQI: 1 - Good
PM2.5: 4.58 μg/m3
PM10: 5.17 μg/m3
Carbon Monoxide: 146.31 μg/m3
Nitrogen Dioxide: 6.62 μg/m3
Sulphur Dioxide: 1.68 μg/m3
Ozone: 75.24 μg/m3

Astronomical

Sunrise: 7:11 AM
Sun Transit: 12:00 AM
Sunset: 7:18 PM
Daylight: 12 hrs 7 mins
Moonrise: 7:16 AM
Moon Transit: 12:00 AM
Moonset: 8:39 PM
Moon Phase: New
Moon Illumination: 0.3%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:00 AM - 12:00 AM

Minor Periods

8:09 PM - 9:39 PM
6:46 AM - 8:16 AM

Action Rating: 4 out of 5

Friday, March 20, 2026

Weather Forecast

Heavy rain
51.9°F
42.4°F
50.4°F
99%
0.99 in
82%
0%
5.8 mph
3


Air Quality

AQI: 1 - Good
PM2.5: 2.52 μg/m3
PM10: 2.66 μg/m3
Carbon Monoxide: 148.35 μg/m3
Nitrogen Dioxide: 7.42 μg/m3
Sulphur Dioxide: 1.87 μg/m3
Ozone: 55.62 μg/m3

Astronomical

Sunrise: 7:09 AM
Sun Transit: 7:27 AM
Sunset: 7:19 PM
Daylight: 12 hrs 11 mins
Moonrise: 7:34 AM
Moon Transit: 2:38 PM
Moonset: 10:02 PM
Moon Phase: New
Moon Illumination: 2.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:08 PM - 4:38 PM

Minor Periods

9:32 PM - 11:02 PM
7:04 AM - 8:34 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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