Water Temperature of the South Santiam River in Sweet Home, OR

Current Water Temperature

43.3°F

Measurement Time: Wednesday, February 4, 2026, 5:50 PM PST

Temperature Locations

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Local Points of Interest

Foster Reservoir; Foster Dam; Andrew Wiley Park; Camp Koinonia

South Santiam River

Station Name: SOUTH SANTIAM RIVER NEAR FOSTER, OR
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 564 feet

Nearest Address:
42853 Green River Dr
Sweet Home, OR 97386
Linn County

GPS Coordinates: 44.4123468, -122.6886956

Nearby Water Temperatures

Middle Santiam River, Foster, OR (7.3 mi)
South Santiam River, Waterloo, OR (8.9 mi)
South Santiam River, Cascadia, OR (9.5 mi)
Quartzville Creek, Cascadia, OR (15.3 mi)
Middle Santiam River, Cascadia, OR (17.2 mi)
McKenzie River, Vida, OR (22.6 mi)
McKenzie River, Walterville, OR (24 mi)
North Fork Quartz Creek, Blue River, OR (24.3 mi)
Blue River Lake, Blue River, OR (24.5 mi)
Blue River, Blue River, OR (24.6 mi)
North Santiam River, Jefferson, OR (24.8 mi)
Blue River, Blue River, OR (24.9 mi)
North Santiam River, Mehama, OR (25.3 mi)
Camp Creek, Springfield, OR (25.5 mi)
Lookout Creek, Blue River, OR (25.5 mi)

Weather for Sweet Home, Oregon

Current Weather

34°F
Fog
Fog
30.8°F
45.4°F
100%
E 3.6 mph
7.5 mph
42.4°F
35.2°F
0 in
75%
0 mi
1022 mbar
0

Five Day Weather Forecast

Sunny
Thu
H: 69°F
L: 42°F
Partly Cloudy
Fri
H: 60°F
L: 44°F
Overcast
Sat
H: 57°F
L: 40°F
Heavy rain
Sun
H: 49°F
L: 43°F
Patchy rain nearby
Mon
H: 50°F
L: 33°F

Air Quality

AQI: 1 - Good
PM2.5: 13.85 μg/m3
PM10: 14.05 μg/m3
Carbon Monoxide: 202.85 μg/m3
Nitrogen Dioxide: 5.15 μg/m3
Sulphur Dioxide: 1.35 μg/m3
Ozone: 49 μg/m3

Astronomical

Sunrise: 7:24 AM
Sun Transit: 12:24 AM
Sunset: 5:26 PM
Daylight: 10 hrs 2 mins
Moonrise: 10:09 PM
Moon Transit: 3:08 AM
Moonset: 9:03 AM
Moon Phase: Waning Gibbous
Moon Illumination: 83.4%

Best Times for Fishing or Hunting

Major Periods

2:38 AM - 5:08 AM
10:30 AM - 1:00 PM

Minor Periods

9:39 PM - 11:09 PM
8:33 AM - 10:03 AM

Action Rating: 2 out of 5

Air Stagnation Advisory issued February 4 at 11:57AM PST until February 6 at 10:00PM PST by NWS Portland OR

Effective: Wed February 4, 2026, 11:57 AM
Expires: Thu February 5, 2026, 6:00 AM

* WHAT...Light winds and limited air movement will lead to a period of stagnant air conditions. * WHERE...Foothills of the Northern and Central Oregon Cascades, Lower Columbia River and Cowlitz River Valleys, East Central Willamette Valley, Lane County Lowlands, and North Clark County Lowlands. * WHEN...Until 10 PM PST Friday. * IMPACTS...Deteriorating air quality may cause issues for people with respiratory problems.

State air quality agencies highly recommend that no outdoor burning occur and that residential wood burning devices be limited as much as possible. According to state air quality agencies, prolonged periods of stagnant air can hold pollutants close to the ground where people live and breathe. Check with your local burn agency for any current restrictions in your area. People with respiratory illness should follow their physician's advice for dealing with high levels of air pollution during periods of stagnant air, especially if an Air Quality Alert is in effect for your area. To see if an Air Quality Alert is in effect for your area, go to www.weather.gov/pqr and left-click your location on the homepage map display. Alternatively, you could also type your location into the search bar found on the top-left hand side of the homepage. From there, you will see an Air Quality Alert listed at the top if one is in effect for your location; you can click the alert to read more details if applicable.


Air Stagnation Advisory issued February 4 at 11:57AM PST until February 6 at 10:00PM PST by NWS Portland OR

Effective: Wed February 4, 2026, 11:57 AM
Expires: Thu February 5, 2026, 6:00 AM

* WHAT...Light winds and limited air movement will lead to a period of stagnant air conditions. * WHERE...Benton County Lowlands and Linn County Lowlands. * WHEN...Until 10 PM PST Friday. * IMPACTS...Deteriorating air quality may cause issues for people with respiratory problems.

State air quality agencies highly recommend that no outdoor burning occur and that residential wood burning devices be limited as much as possible. According to state air quality agencies, prolonged periods of stagnant air can hold pollutants close to the ground where people live and breathe. Check with your local burn agency for any current restrictions in your area. People with respiratory illness should follow their physician's advice for dealing with high levels of air pollution during periods of stagnant air, especially if an Air Quality Alert is in effect for your area. To see if an Air Quality Alert is in effect for your area, go to www.weather.gov/pqr and left-click your location on the homepage map display. Alternatively, you could also type your location into the search bar found on the top-left hand side of the homepage. From there, you will see an Air Quality Alert listed at the top if one is in effect for your location; you can click the alert to read more details if applicable.


Beach Hazards Statement issued February 3 at 7:42AM PST until February 5 at 1:00AM PST by NWS Portland OR

Effective: Tue February 3, 2026, 7:42 AM
Expires: Thu February 5, 2026, 1:00 AM

* WHAT...Sneaker waves possible. * WHERE...North and Central Coast of Oregon, and South Washington Coast. * WHEN...From 4 AM PST Wednesday through 1 AM PST Thursday. * IMPACTS...Waves can run up significantly farther on a beach than normal, including over rocks and jetties. Sneaker waves can suddenly knock people off of their feet and quickly pull them into the frigid ocean which may lead to serious injury or drowning. * ADDITIONAL DETAILS...Caution should be used when in or near the water, especially those who will be razor clamming. Keep children and pets away from the surf zone. Keep off of jetties, rocks and logs near the surf zone. If you see someone swept into the sea do not swim in after them. Call 911 and keep an eye on them until help arrives.

Remain out of the water to avoid hazardous swimming conditions.


Thursday, February 5, 2026

Weather Forecast

Sunny
69.1°F
42.1°F
51.5°F
70%
0 in
0%
0%
4.5 mph
0.4


Air Quality

AQI: 1 - Good
PM2.5: 14.44 μg/m3
PM10: 14.99 μg/m3
Carbon Monoxide: 216.29 μg/m3
Nitrogen Dioxide: 8.47 μg/m3
Sulphur Dioxide: 1.56 μg/m3
Ozone: 51.08 μg/m3

Astronomical

Sunrise: 7:24 AM
Sun Transit: 12:24 AM
Sunset: 5:26 PM
Daylight: 10 hrs 2 mins
Moonrise: 10:09 PM
Moon Transit: 3:08 AM
Moonset: 9:03 AM
Moon Phase: Waning Gibbous
Moon Illumination: 83.4%

Best Times for Fishing or Hunting

Major Periods

2:38 AM - 5:08 AM
10:30 AM - 1:00 PM

Minor Periods

9:39 PM - 11:09 PM
8:33 AM - 10:03 AM

Action Rating: 2 out of 5

Friday, February 6, 2026

Weather Forecast

Partly Cloudy
60.4°F
43.7°F
50.9°F
68%
0 in
0%
0%
4.7 mph
0.4


Air Quality

AQI: 1 - Good
PM2.5: 11.92 μg/m3
PM10: 12.49 μg/m3
Carbon Monoxide: 225.41 μg/m3
Nitrogen Dioxide: 9.33 μg/m3
Sulphur Dioxide: 1.45 μg/m3
Ozone: 42.32 μg/m3

Astronomical

Sunrise: 7:23 AM
Sun Transit: 12:24 AM
Sunset: 5:27 PM
Daylight: 10 hrs 5 mins
Moonrise: 11:16 PM
Moon Transit: 3:50 AM
Moonset: 9:21 AM
Moon Phase: Waning Gibbous
Moon Illumination: 74.1%

Best Times for Fishing or Hunting

Major Periods

3:20 AM - 5:50 AM
11:12 AM - 1:42 PM

Minor Periods

12:00 AM - 12:00 AM
8:51 AM - 10:21 AM

Action Rating: 2 out of 5

Saturday, February 7, 2026

Weather Forecast

Overcast
57.4°F
40.1°F
51.2°F
79%
0 in
0%
0%
4.9 mph
0.1


Air Quality

AQI: 1 - Good
PM2.5: 12.34 μg/m3
PM10: 13.37 μg/m3
Carbon Monoxide: 218.65 μg/m3
Nitrogen Dioxide: 8.55 μg/m3
Sulphur Dioxide: 1.53 μg/m3
Ozone: 53.48 μg/m3

Astronomical

Sunrise: 7:21 AM
Sun Transit: 12:24 AM
Sunset: 5:29 PM
Daylight: 10 hrs 7 mins
Moonrise: 12:16 AM
Moon Transit: 4:33 AM
Moonset: 9:40 AM
Moon Phase: Waning Gibbous
Moon Illumination: 63.7%

Best Times for Fishing or Hunting

Major Periods

4:03 AM - 6:33 AM
11:55 AM - 2:25 PM

Minor Periods

9:10 AM - 10:40 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Sunday, February 8, 2026

Weather Forecast

Heavy rain
49.3°F
43°F
46.5°F
95%
1.7 in
79%
0%
7.6 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 10.79 μg/m3
PM10: 12.95 μg/m3
Carbon Monoxide: 155.95 μg/m3
Nitrogen Dioxide: 6.61 μg/m3
Sulphur Dioxide: 1.63 μg/m3
Ozone: 52.4 μg/m3

Astronomical

Sunrise: 7:20 AM
Sun Transit: 12:24 AM
Sunset: 5:30 PM
Daylight: 10 hrs 10 mins
Moonrise: 12:23 AM
Moon Transit: 5:16 AM
Moonset: 10:02 AM
Moon Phase: Last Quarter
Moon Illumination: 52.5%

Best Times for Fishing or Hunting

Major Periods

4:46 AM - 7:16 AM
12:39 AM - 3:09 PM

Minor Periods

9:32 AM - 11:02 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Monday, February 9, 2026

Weather Forecast

Patchy rain nearby
50.2°F
32.6°F
41.8°F
91%
0.11 in
87%
0%
6.3 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 4.51 μg/m3
PM10: 6.32 μg/m3
Carbon Monoxide: 143.2 μg/m3
Nitrogen Dioxide: 2.68 μg/m3
Sulphur Dioxide: 1.2 μg/m3
Ozone: 78.77 μg/m3

Astronomical

Sunrise: 7:19 AM
Sun Transit: 12:24 AM
Sunset: 5:31 PM
Daylight: 10 hrs 13 mins
Moonrise: 1:29 AM
Moon Transit: 6:02 AM
Moonset: 10:29 AM
Moon Phase: Last Quarter
Moon Illumination: 41.2%

Best Times for Fishing or Hunting

Major Periods

5:32 AM - 8:02 AM
1:25 PM - 3:55 PM

Minor Periods

9:59 AM - 11:29 AM
12:59 AM - 2:29 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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