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

Current Water Temperature

39.2°F

Measurement Time: Thursday, April 16, 2026, 9:00 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°F
Overcast
Overcast
40.5°F
42.4°F
96%
NNE 2.2 mph
6.7 mph
41.8°F
36.5°F
0 in
100%
9 mi
1027 mbar
0

Five Day Weather Forecast

Partly Cloudy
Fri
H: 56°F
L: 34°F
Overcast
Sat
H: 67°F
L: 46°F
Cloudy
Sun
H: 75°F
L: 55°F
Sunny
Mon
H: 74°F
L: 43°F
Sunny
Tue
H: 76°F
L: 43°F

Air Quality

AQI: 1 - Good
PM2.5: 4.35 μg/m3
PM10: 5.95 μg/m3
Carbon Monoxide: 155.85 μg/m3
Nitrogen Dioxide: 1.55 μg/m3
Sulphur Dioxide: 1.35 μg/m3
Ozone: 96 μg/m3

Astronomical

Sunrise: 6:13 AM
Sun Transit: 1:06 PM
Sunset: 8:00 PM
Daylight: 13 hrs 47 mins
Moonrise: 5:57 AM
Moon Transit: 1:18 PM
Moonset: 9:00 PM
Moon Phase: New
Moon Illumination: 4.1%

Best Times for Fishing or Hunting

Major Periods

8:53 PM - 11:23 PM
12:48 AM - 3:18 PM

Minor Periods

8:30 PM - 10:00 PM
5:27 AM - 6:57 AM

Action Rating: 4 out of 5

Frost Advisory issued April 16 at 9:58PM PDT until April 17 at 9:00AM PDT by NWS Seattle WA

Effective: Thu April 16, 2026, 9:58 PM
Expires: Fri April 17, 2026, 9:00 AM

* WHAT...Temperatures as low as 31 will result in frost formation. * WHERE...Middle Chehalis River Valley, Foothills and Valleys of Pierce and Southern King Counties, Foothills and Valleys of Thurston and Lewis Counties, Lowlands of Lewis and Southern Thurston Counties, and Willapa and Black Hills. * WHEN...From 1 AM to 9 AM PDT Friday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.

Take steps now to protect tender plants from the cold.
Friday, April 17, 2026

Weather Forecast

Partly Cloudy
55.9°F
33.7°F
47.7°F
73%
0 in
0%
0%
3.8 mph
1


Air Quality

AQI: 1 - Good
PM2.5: 5.5 μg/m3
PM10: 7.23 μg/m3
Carbon Monoxide: 176.01 μg/m3
Nitrogen Dioxide: 4.98 μg/m3
Sulphur Dioxide: 1.59 μg/m3
Ozone: 87.24 μg/m3

Astronomical

Sunrise: 6:13 AM
Sun Transit: 1:06 PM
Sunset: 8:00 PM
Daylight: 13 hrs 47 mins
Moonrise: 5:57 AM
Moon Transit: 1:18 PM
Moonset: 9:00 PM
Moon Phase: New
Moon Illumination: 4.1%

Best Times for Fishing or Hunting

Major Periods

8:53 PM - 11:23 PM
12:48 AM - 3:18 PM

Minor Periods

8:30 PM - 10:00 PM
5:27 AM - 6:57 AM

Action Rating: 4 out of 5

Saturday, April 18, 2026

Weather Forecast

Overcast
67.1°F
45.7°F
56.4°F
50%
0 in
0%
0%
4.9 mph
1.4


Air Quality

AQI: 1 - Good
PM2.5: 5.11 μg/m3
PM10: 7.04 μg/m3
Carbon Monoxide: 161.05 μg/m3
Nitrogen Dioxide: 5.21 μg/m3
Sulphur Dioxide: 1.37 μg/m3
Ozone: 93 μg/m3

Astronomical

Sunrise: 6:11 AM
Sun Transit: 1:05 PM
Sunset: 8:01 PM
Daylight: 13 hrs 50 mins
Moonrise: 6:22 AM
Moon Transit: 2:15 PM
Moonset: 10:29 PM
Moon Phase: New
Moon Illumination: 1.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
1:45 PM - 4:15 PM

Minor Periods

9:59 PM - 11:29 PM
5:52 AM - 7:22 AM

Action Rating: 4 out of 5

Sunday, April 19, 2026

Weather Forecast

Cloudy
75.2°F
54.5°F
63.8°F
47%
0 in
0%
0%
6 mph
1.3


Air Quality

AQI: 1 - Good
PM2.5: 4.56 μg/m3
PM10: 7.91 μg/m3
Carbon Monoxide: 157.37 μg/m3
Nitrogen Dioxide: 4.06 μg/m3
Sulphur Dioxide: 1.27 μg/m3
Ozone: 102.92 μg/m3

Astronomical

Sunrise: 6:09 AM
Sun Transit: 1:05 PM
Sunset: 8:03 PM
Daylight: 13 hrs 54 mins
Moonrise: 6:54 AM
Moon Transit: 3:16 PM
Moonset: 11:54 PM
Moon Phase: Waxing Crescent
Moon Illumination: 4.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:46 PM - 5:16 PM

Minor Periods

12:00 AM - 12:00 AM
6:24 AM - 7:54 AM

Action Rating: 3 out of 5

Monday, April 20, 2026

Weather Forecast

Sunny
74.3°F
42.6°F
57.6°F
70%
0 in
0%
0%
5.1 mph
1.5


Air Quality

AQI: 1 - Good
PM2.5: 5.82 μg/m3
PM10: 11.6 μg/m3
Carbon Monoxide: 159.29 μg/m3
Nitrogen Dioxide: 5.85 μg/m3
Sulphur Dioxide: 1.59 μg/m3
Ozone: 98.84 μg/m3

Astronomical

Sunrise: 6:07 AM
Sun Transit: 1:05 PM
Sunset: 8:04 PM
Daylight: 13 hrs 57 mins
Moonrise: 7:39 AM
Moon Transit: 4:21 PM
Moonset: 12:54 AM
Moon Phase: Waxing Crescent
Moon Illumination: 10.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
3:51 PM - 6:21 PM

Minor Periods

7:09 AM - 8:39 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Tuesday, April 21, 2026

Weather Forecast

Sunny
76.2°F
42.7°F
54.9°F
75%
0 in
0%
0%
4.9 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 12.44 μg/m3
PM10: 17.19 μg/m3
Carbon Monoxide: 220.64 μg/m3
Nitrogen Dioxide: 11.69 μg/m3
Sulphur Dioxide: 3.01 μg/m3
Ozone: 80.08 μg/m3

Astronomical

Sunrise: 6:06 AM
Sun Transit: 1:05 PM
Sunset: 8:06 PM
Daylight: 14 hrs mins
Moonrise: 8:39 AM
Moon Transit: 5:26 PM
Moonset: 1:09 AM
Moon Phase: Waxing Crescent
Moon Illumination: 18.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
4:56 PM - 7:26 PM

Minor Periods

8:09 AM - 9:39 AM
12:39 AM - 2:09 AM

Action Rating: 2 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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