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

Current Water Temperature

38.5°F

Measurement Time: Thursday, March 19, 2026, 1:00 AM 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

51.1°F
Light rain
Light rain
51.6°F
52.7°F
100%
SSE 2.2 mph
2.4 mph
52.2°F
51°F
0.03 in
100%
8 mi
1020 mbar
0

Five Day Weather Forecast

Heavy rain
Thu
H: 54°F
L: 48°F
Heavy rain
Fri
H: 52°F
L: 41°F
Mist
Sat
H: 43°F
L: 36°F
Partly Cloudy
Sun
H: 50°F
L: 32°F
Partly Cloudy
Mon
H: 50°F
L: 30°F

Air Quality

AQI: 1 - Good
PM2.5: 6.15 μg/m3
PM10: 8.05 μg/m3
Carbon Monoxide: 140.85 μg/m3
Nitrogen Dioxide: 7.15 μg/m3
Sulphur Dioxide: 1.85 μg/m3
Ozone: 68 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

Flood Watch issued March 18 at 3:54PM PDT until March 20 at 5:00PM PDT by NWS Seattle WA

Effective: Wed March 18, 2026, 3:54 PM
Expires: Thu March 19, 2026, 5:00 AM

* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of northwest and west central Washington, including the following counties, in northwest Washington, Skagit and Whatcom. In west central Washington, King and Snohomish. * WHEN...Through Friday afternoon. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS... - High snow levels, heavy rainfall, and snowmelt runoff will lead to continued rises on area rivers with additional flooding possible at times this week. - http://www.weather.gov/safety/flood

You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.


Flood Warning issued March 18 at 7:53PM PDT until March 19 at 11:25PM PDT by NWS Seattle WA

Effective: Wed March 18, 2026, 7:53 PM
Expires: Thu March 19, 2026, 4:00 AM

...The Flood Warning continues for the following rivers in Washington... Snohomish River Near Monroe affecting Snohomish County. .Heavy rain over the Central Cascades combined with high snow levels will push the Snohomish River near Monroe above flood stage this evening. * WHAT...Minor flooding is forecast. * WHERE...Snohomish River near Monroe. * WHEN...Until late tomorrow evening. * IMPACTS...At 15.0 feet, the Snohomish River will cause minor flooding of low pasture lands and several roads near the river. A stage of 15 feet at this location corresponds to Phase 2 in the Snohomish County Flood Warning System. * ADDITIONAL DETAILS... - At 7:15 PM PDT Wednesday the stage was 14.6 feet. - Flood stage is 15.0 feet. - Forecast...The river will rise above flood stage late this evening to a crest of 15.4 feet by early Thursday morning. It will then fall below flood stage by Thursday afternoon, reaching its lowest point at 12.8 feet Friday afternoon. It will rise again, but at this secondary crest it is expected to remain below flood stage. - http://www.weather.gov/safety/flood

Motorists should not attempt to drive around barricades or drive cars through flooded areas. Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Additional information is available at www.weather.gov. The next statement will be issued by late tonight at 400 AM PDT.


Flood Warning issued March 18 at 5:58PM PDT until March 22 at 10:39AM PDT by NWS Seattle WA

Effective: Wed March 18, 2026, 5:58 PM
Expires: Thu March 19, 2026, 2:00 AM

...The Flood Warning continues for the following rivers in Washington... Snohomish River At Snohomish affecting Snohomish County. .Heavy rain over the Central Cascades combined with higher snow levels will push the Snohomish River at Snohomish above flood stage this evening. * WHAT...Moderate flooding is forecast. * WHERE...Snohomish River at Snohomish. * WHEN...Until late Sunday morning. * IMPACTS...At 27.0 feet, the Snohomish River will flood several roads...including the Snohomish-Monroe highway...and low areas of the lower Snohomish valley that are not protected by levees. A stage of 27 feet on the Snohomish River corresponds roughly to a Phase 2 in the Snohomish County flood program. * ADDITIONAL DETAILS... - At 5:00 PM PDT Wednesday the stage was 24.9 feet. - Flood stage is 25.0 feet. - Forecast...The river will rise above flood stage this evening and is expected to crest at 27.1 feet by early Thursday afternoon. It will fall below flood stage Friday morning to 24.4 feet Friday afternoon. It will then rise above flood stage again early Saturday morning, cresting at 26.0 feet by late Saturday morning. It will fall below flood stage again Saturday evening. - http://www.weather.gov/safety/flood

Motorists should not attempt to drive around barricades or drive cars through flooded areas. Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Additional information is available at www.weather.gov. The next statement will be issued by late tonight at 200 AM PDT.


Flood Watch issued March 19 at 3:31AM PDT until March 20 at 5:00PM PDT by NWS Seattle WA

Effective: Thu March 19, 2026, 3:31 AM
Expires: Thu March 19, 2026, 5:00 PM

* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of northwest and west central Washington, including the following counties, in northwest Washington, Skagit and Whatcom. In west central Washington, King and Snohomish. * WHEN...Through Friday afternoon. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS... - High snow levels, heavy rainfall, and snowmelt runoff will lead to continued rises on area rivers with additional flooding possible at times this week. - http://www.weather.gov/safety/flood

You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.


Flood Warning issued March 19 at 3:29AM PDT until March 19 at 5:18PM PDT by NWS Seattle WA

Effective: Thu March 19, 2026, 3:29 AM
Expires: Thu March 19, 2026, 11:30 AM

...The Flood Warning continues for the following rivers in Washington... Snohomish River Near Monroe affecting Snohomish County. Snoqualmie River Near Snoqualmie Falls affecting King County. ...The Flood Warning is extended for the following rivers in Washington... Tolt River Above Carnation affecting King County. Snoqualmie River Near Carnation affecting King County. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Snohomish River near Monroe. * WHEN...Until late this afternoon. * IMPACTS...At 15.0 feet, the Snohomish River will cause minor flooding of low pasture lands and several roads near the river. A stage of 15 feet at this location corresponds to Phase 2 in the Snohomish County Flood Warning System. * ADDITIONAL DETAILS... - At 2:15 AM PDT Thursday the stage was 15.0 feet. - Flood stage is 15.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 2:15 AM PDT Thursday was 15.0 feet. - Forecast...The river is cresting around 15.0 feet early this morning. The river will begin receding later this morning and continue to recede overnight. - http://www.weather.gov/safety/flood

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Motorists should not attempt to drive around barricades or drive cars through flooded areas. Additional information is available at www.weather.gov. The next statement will be issued by this morning at 1130 AM PDT.


Thursday, March 19, 2026

Weather Forecast

Heavy rain
54.3°F
47.5°F
53.2°F
92%
0.97 in
89%
0%
5.6 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 5.94 μg/m3
PM10: 7 μg/m3
Carbon Monoxide: 150.41 μg/m3
Nitrogen Dioxide: 6.53 μg/m3
Sulphur Dioxide: 1.78 μg/m3
Ozone: 76.4 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
51.8°F
40.8°F
47.3°F
98%
3.87 in
89%
0%
6 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 3.77 μg/m3
PM10: 4.36 μg/m3
Carbon Monoxide: 157.17 μg/m3
Nitrogen Dioxide: 7.93 μg/m3
Sulphur Dioxide: 1.66 μg/m3
Ozone: 55 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

Saturday, March 21, 2026

Weather Forecast

Mist
43.3°F
36°F
39.2°F
85%
0 in
0%
0%
4 mph
0.5


Air Quality

AQI: 1 - Good
PM2.5: 2.74 μg/m3
PM10: 3.58 μg/m3
Carbon Monoxide: 154.65 μg/m3
Nitrogen Dioxide: 4.51 μg/m3
Sulphur Dioxide: 1.38 μg/m3
Ozone: 82.04 μg/m3

Astronomical

Sunrise: 7:07 AM
Sun Transit: 12:00 AM
Sunset: 7:21 PM
Daylight: 12 hrs 14 mins
Moonrise: 7:55 AM
Moon Transit: 3:31 PM
Moonset: 11:27 PM
Moon Phase: Waxing Crescent
Moon Illumination: 7.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
3:01 PM - 5:31 PM

Minor Periods

12:00 AM - 12:00 AM
7:25 AM - 8:55 AM

Action Rating: 3 out of 5

Sunday, March 22, 2026

Weather Forecast

Partly Cloudy
50.1°F
32.3°F
39.9°F
73%
0 in
0%
0%
4.7 mph
0.8


Air Quality

AQI: 1 - Good
PM2.5: 3.92 μg/m3
PM10: 5.21 μg/m3
Carbon Monoxide: 156.46 μg/m3
Nitrogen Dioxide: 4.67 μg/m3
Sulphur Dioxide: 1.36 μg/m3
Ozone: 92.6 μg/m3

Astronomical

Sunrise: 7:05 AM
Sun Transit: 12:00 AM
Sunset: 7:22 PM
Daylight: 12 hrs 17 mins
Moonrise: 8:22 AM
Moon Transit: 4:28 PM
Moonset: 12:27 AM
Moon Phase: Waxing Crescent
Moon Illumination: 14.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
3:58 PM - 6:28 PM

Minor Periods

7:52 AM - 9:22 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Monday, March 23, 2026

Weather Forecast

Partly Cloudy
50.2°F
29.5°F
38.6°F
80%
0 in
0%
0%
4.7 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 5.27 μg/m3
PM10: 6.5 μg/m3
Carbon Monoxide: 192.27 μg/m3
Nitrogen Dioxide: 8.87 μg/m3
Sulphur Dioxide: 1.6 μg/m3
Ozone: 78.31 μg/m3

Astronomical

Sunrise: 7:03 AM
Sun Transit: 12:00 AM
Sunset: 7:24 PM
Daylight: 12 hrs 21 mins
Moonrise: 8:57 AM
Moon Transit: 5:29 PM
Moonset: 12:53 AM
Moon Phase: Waxing Crescent
Moon Illumination: 23.8%

Best Times for Fishing or Hunting

Major Periods

12:04 AM - 2:34 AM
4:59 PM - 7:29 PM

Minor Periods

8:27 AM - 9:57 AM
12:23 AM - 1:53 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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