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

Current Water Temperature

56.8°F

Measurement Time: Thursday, July 31, 2025, 10:00 PM PDT

Temperature Locations

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Local Points of Interest

Spada Lake; Henry M. Jackson Hydro Electric Project

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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 / 453 meters

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 (21.0 mi)
Sauk River, Concrete, WA (33.1 mi)
Canyon Creek, Cedar Falls, WA (37.0 mi)
Cedar River, Cedar Falls, WA (37.2 mi)
Cedar River, Cedar Falls, WA (37.4 mi)

Weather for Sultan, Washington

Current Weather

57.9°F
Light rain
Conditions: Light rain
Humidity: 87%
Feels Like: 59.2°F
Wind: ESE 2.2 mph
Wind Gusts: 3.5 mph
Pressure: 30.12 in
Precipitation: 0.1 in
Cloud Cover: 0%
Visibility: 9 mi
UV Index: 0

Five Day Weather Forecast

Moderate rain
Fri
H: 73°F
L: 59°F
Cloudy
Sat
H: 70°F
L: 63°F
Mist
Sun
H: 59°F
L: 57°F
Cloudy
Mon
H: 71°F
L: 50°F
Partly Cloudy
Tue
H: 77°F
L: 51°F

Air Quality

AQI: 1 - Good
PM2.5: 9.07 μg/m3
PM10: 10.36 μg/m3
Carbon Monoxide: 205.35 μg/m3
Nitrogen Dioxide: 5.55 μg/m3
Sulphur Dioxide: 3.33 μg/m3
Ozone: 63 μg/m3

Astronomical

Sunrise: 5:43 AM
Sun Transit: 1:12 PM
Sunset: 8:42 PM
Daylight: 14 hrs 58 mins
Moonrise: 2:41 PM
Moon Transit: 7:12 PM
Moonset: 12:15 AM
Moon Phase: First Quarter
Moon Illumination: 47.9%

Best Times for Fishing or Hunting

Major Periods

1:59 AM - 4:29 AM
6:42 PM - 9:12 PM

Minor Periods

2:11 PM - 3:41 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Flash Flood Watch issued July 31 at 10:07AM PDT until August 1 at 5:00AM PDT by NWS Seattle WA

Effective: Thu July 31, 2025, 10:07 AM
Expires: Thu July 31, 2025, 11:15 PM

Thunderstorms will develop over the Cascades this afternoon and tonight. Storms will be slow-moving and produce high rain rates, allowing for potential flash flooding over area burn scars. * WHAT...Flash flooding and debris flows caused by excessive rainfall continue to be possible over the Bolt Creek and Goat Rocks burn scars. * WHERE...Portions of northwest and west central Washington, including the following areas, in northwest Washington, Cascades of Snohomish and Northern King Counties. In west central Washington, Cascades of Pierce and Lewis Counties and Foothills and Valleys of Snohomish and Northern King Counties. * WHEN...Through late tonight. * IMPACTS...Heavy rainfall over the Bolt Creek and Goat Rocks burn scar is expected up to and during the period of the watch. Residents and travelers near the Bolt Creek and Goat Rocks burn scar should prepare for potential flooding impacts. Be sure to stay up to date with information from local authorities. Heavy rainfall could trigger flash flooding of low-lying areas, urbanized street flooding, and debris flows in and near recent wildfire burn scars. * ADDITIONAL DETAILS... - National Weather Service Meteorologists are forecasting heavy rainfall over the burn scar, which may lead to flash flooding and debris flows. - http://www.weather.gov/safety/flood

You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.


Flash Flood Watch issued July 31 at 10:07AM PDT until August 1 at 5:00AM PDT by NWS Seattle WA

Effective: Thu July 31, 2025, 10:07 AM
Expires: Thu July 31, 2025, 11:15 PM

Thunderstorms will develop over the Cascades this afternoon and tonight. Storms will be slow-moving and produce high rain rates, allowing for potential flash flooding over area burn scars. * WHAT...Flash flooding and debris flows caused by excessive rainfall continue to be possible over the Sourdough, Easy, Chilliwack, and Suiattle-Boulder-Toketie burn scar. * WHERE...A portion of northwest Washington, including the following areas, Cascades of Whatcom and Skagit Counties and Foothills and Valleys of the North Cascades. * WHEN...Through late tonight. * IMPACTS...Heavy rainfall over the Sourdough, Easy, Chilliwack, and Suiattle-Boulder-Toketie burn scars is expected up to and during the period of the watch. Residents and travelers near the Sourdough, Easy, Chilliwack, and Suiattle-Boulder-Toketie burn scar should prepare for potential flooding impacts. Be sure to stay up to date with information from local authorities. Heavy rainfall could trigger flash flooding of low-lying areas, urbanized street flooding, and debris flows in and near recent wildfire burn scars. * ADDITIONAL DETAILS... - National Weather Service Meteorologists are forecasting heavy rainfall over the burn scar, which may lead to flash flooding and debris flows. - http://www.weather.gov/safety/flood

You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.


Flash Flood Watch issued July 31 at 10:07AM PDT until August 1 at 5:00AM PDT by NWS Seattle WA

Effective: Thu July 31, 2025, 10:07 AM
Expires: Thu July 31, 2025, 11:15 PM

Thunderstorms will develop over the Cascades this afternoon and tonight. Storms will be slow-moving and produce high rain rates, allowing for potential flash flooding over area burn scars. * WHAT...Flash flooding and debris flows caused by excessive rainfall continue to be possible over the Bolt Creek and Goat Rocks burn scars. * WHERE...Portions of northwest and west central Washington, including the following areas, in northwest Washington, Cascades of Snohomish and Northern King Counties. In west central Washington, Cascades of Pierce and Lewis Counties and Foothills and Valleys of Snohomish and Northern King Counties. * WHEN...Through late tonight. * IMPACTS...Heavy rainfall over the Bolt Creek and Goat Rocks burn scar is expected up to and during the period of the watch. Residents and travelers near the Bolt Creek and Goat Rocks burn scar should prepare for potential flooding impacts. Be sure to stay up to date with information from local authorities. Heavy rainfall could trigger flash flooding of low-lying areas, urbanized street flooding, and debris flows in and near recent wildfire burn scars. * ADDITIONAL DETAILS... - National Weather Service Meteorologists are forecasting heavy rainfall over the burn scar, which may lead to flash flooding and debris flows. - http://www.weather.gov/safety/flood

You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.


Flash Flood Watch issued July 31 at 10:07AM PDT until August 1 at 5:00AM PDT by NWS Seattle WA

Effective: Thu July 31, 2025, 10:07 AM
Expires: Thu July 31, 2025, 11:15 PM

Thunderstorms will develop over the Cascades this afternoon and tonight. Storms will be slow-moving and produce high rain rates, allowing for potential flash flooding over area burn scars. * WHAT...Flash flooding and debris flows caused by excessive rainfall continue to be possible over the Sourdough, Easy, Chilliwack, and Suiattle-Boulder-Toketie burn scar. * WHERE...A portion of northwest Washington, including the following areas, Cascades of Whatcom and Skagit Counties and Foothills and Valleys of the North Cascades. * WHEN...Through late tonight. * IMPACTS...Heavy rainfall over the Sourdough, Easy, Chilliwack, and Suiattle-Boulder-Toketie burn scars is expected up to and during the period of the watch. Residents and travelers near the Sourdough, Easy, Chilliwack, and Suiattle-Boulder-Toketie burn scar should prepare for potential flooding impacts. Be sure to stay up to date with information from local authorities. Heavy rainfall could trigger flash flooding of low-lying areas, urbanized street flooding, and debris flows in and near recent wildfire burn scars. * ADDITIONAL DETAILS... - National Weather Service Meteorologists are forecasting heavy rainfall over the burn scar, which may lead to flash flooding and debris flows. - http://www.weather.gov/safety/flood

You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.


Friday, August 1, 2025

Weather Forecast

Conditions: Moderate rain
Average Temperature: 66.8°F
Average Humidity: 84%
Chance of Rain: 88%
Wind: 5.8 mph
UV Index: 2

Air Quality

AQI: 1 - Good
PM2.5: 10.69 μg/m3
PM10: 11.72 μg/m3
Carbon Monoxide: 216.23 μg/m3
Nitrogen Dioxide: 13.02 μg/m3
Sulphur Dioxide: 2.45 μg/m3
Ozone: 64.44 μg/m3

Astronomical

Sunrise: 5:43 AM
Sun Transit: 1:12 PM
Sunset: 8:42 PM
Daylight: 14 hrs 58 mins
Moonrise: 2:41 PM
Moon Transit: 7:12 PM
Moonset: 12:15 AM
Moon Phase: First Quarter
Moon Illumination: 47.9%

Best Times for Fishing or Hunting

Major Periods

1:59 AM - 4:29 AM
6:42 PM - 9:12 PM

Minor Periods

2:11 PM - 3:41 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Saturday, August 2, 2025

Weather Forecast

Conditions: Cloudy
Average Temperature: 65.7°F
Average Humidity: 86%
Chance of Rain: 0%
Wind: 6.7 mph
UV Index: 2.1

Air Quality

AQI: 2 - Moderate
PM2.5: 26.04 μg/m3
PM10: 26.75 μg/m3
Carbon Monoxide: 223.85 μg/m3
Nitrogen Dioxide: 12.88 μg/m3
Sulphur Dioxide: 2.34 μg/m3
Ozone: 70.92 μg/m3

Astronomical

Sunrise: 5:45 AM
Sun Transit: 1:12 PM
Sunset: 8:40 PM
Daylight: 14 hrs 56 mins
Moonrise: 3:50 PM
Moon Transit: 7:58 PM
Moonset: 12:35 AM
Moon Phase: First Quarter
Moon Illumination: 59.1%

Best Times for Fishing or Hunting

Major Periods

2:44 AM - 5:14 AM
7:28 PM - 9:58 PM

Minor Periods

3:20 PM - 4:50 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Sunday, August 3, 2025

Weather Forecast

Conditions: Mist
Average Temperature: 58.9°F
Average Humidity: 95%
Chance of Rain: 0%
Wind: 6.5 mph
UV Index: 1.8

Air Quality

AQI: 2 - Moderate
PM2.5: 19.97 μg/m3
PM10: 20.7 μg/m3
Carbon Monoxide: 240.72 μg/m3
Nitrogen Dioxide: 9.44 μg/m3
Sulphur Dioxide: 1.27 μg/m3
Ozone: 65.64 μg/m3

Astronomical

Sunrise: 5:46 AM
Sun Transit: 1:12 PM
Sunset: 8:39 PM
Daylight: 14 hrs 53 mins
Moonrise: 4:58 PM
Moon Transit: 8:48 PM
Moonset: 12:01 AM
Moon Phase: First Quarter
Moon Illumination: 70.0%

Best Times for Fishing or Hunting

Major Periods

3:31 AM - 6:01 AM
8:18 PM - 10:48 PM

Minor Periods

4:28 PM - 5:58 PM
12:00 AM - 12:00 AM

Action Rating: 4 out of 5

Monday, August 4, 2025

Weather Forecast

Conditions: Cloudy
Average Temperature: 60.5°F
Average Humidity: 74%
Chance of Rain: 0%
Wind: 6 mph
UV Index: 1.8

Air Quality

AQI: 1 - Good
PM2.5: 12.45 μg/m3
PM10: 13.7 μg/m3
Carbon Monoxide: 251.75 μg/m3
Nitrogen Dioxide: 7.41 μg/m3
Sulphur Dioxide: 1.07 μg/m3
Ozone: 57.12 μg/m3

Astronomical

Sunrise: 5:47 AM
Sun Transit: 1:12 PM
Sunset: 8:37 PM
Daylight: 14 hrs 50 mins
Moonrise: 6:02 PM
Moon Transit: 9:41 PM
Moonset: 12:35 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 79.8%

Best Times for Fishing or Hunting

Major Periods

4:22 AM - 6:52 AM
9:11 PM - 11:41 PM

Minor Periods

5:32 PM - 7:02 PM
12:05 AM - 1:35 AM

Action Rating: 2 out of 5

Tuesday, August 5, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 63.9°F
Average Humidity: 65%
Chance of Rain: 0%
Wind: 5.8 mph
UV Index: 0

Air Quality

AQI: 1 - Good
PM2.5: 12.45 μg/m3
PM10: 13.19 μg/m3
Carbon Monoxide: 268.68 μg/m3
Nitrogen Dioxide: 15.65 μg/m3
Sulphur Dioxide: 1.62 μg/m3
Ozone: 59.15 μg/m3

Astronomical

Sunrise: 5:49 AM
Sun Transit: 1:12 PM
Sunset: 8:36 PM
Daylight: 14 hrs 47 mins
Moonrise: 6:56 PM
Moon Transit: 10:36 PM
Moonset: 1:20 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 88.0%

Best Times for Fishing or Hunting

Major Periods

5:16 AM - 7:46 AM
12:00 AM - 12:00 AM

Minor Periods

6:26 PM - 7:56 PM
12:50 AM - 2:20 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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