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

Current Water Temperature

51.8°F

Measurement Time: Wednesday, August 26, 2026, 11:00 PM PDT

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

56°F
Patchy Fog
Patchy Fog
96%
N 1 mph
55°F

Weather Forecast

Patchy Fog then Mostly Sunny
Today
78°F - Patchy Fog then Mostly Sunny
Mostly Clear then Areas Of Fog
Tonight
51°F - Mostly Clear then Areas Of Fog
Areas Of Fog then Mostly Sunny
Friday
77°F - Areas Of Fog then Mostly Sunny
Partly Cloudy then Areas Of Fog
Friday Night
49°F - Partly Cloudy then Areas Of Fog
Areas Of Fog then Mostly Sunny
Saturday
73°F - Areas Of Fog then Mostly Sunny
Mostly Clear then Areas Of Fog
Saturday Night
47°F - Mostly Clear then Areas Of Fog
Areas Of Fog then Sunny
Sunday
76°F - Areas Of Fog then Sunny
Mostly Clear
Sunday Night
48°F - Mostly Clear
Mostly Sunny
Monday
76°F - Mostly Sunny
Mostly Cloudy then Slight Chance Light Rain
Monday Night
49°F - Mostly Cloudy then Slight Chance Light Rain
Chance Light Rain
Tuesday
70°F - Chance Light Rain
Chance Light Rain
Tuesday Night
49°F - Chance Light Rain
Chance Light Rain
Wednesday
71°F - Chance Light Rain
Chance Light Rain
Wednesday Night
50°F - Chance Light Rain

Astronomical

Sunrise: 6:28 AM
Sun Transit: 1:12 PM
Sunset: 7:56 PM
Daylight: 13 hrs 27 mins
Moonrise: 7:48 PM
Moon Transit: 12:34 AM
Moonset: 5:51 AM
Moon Phase: Full
Moon Illumination: 100.0%

Best Times for Fishing or Hunting

Major Periods

12:04 AM - 2:34 AM
7:56 AM - 10:26 AM

Minor Periods

7:18 PM - 8:48 PM
5:21 AM - 6:51 AM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:28 AM
Sun Transit: 1:12 PM
Sunset: 7:56 PM
Daylight: 13 hrs 27 mins
Moonrise: 7:48 PM
Moon Transit: 12:34 AM
Moonset: 5:51 AM
Moon Phase: Full
Moon Illumination: 100.0%

Best Times for Fishing or Hunting

Major Periods

12:04 AM - 2:34 AM
7:56 AM - 10:26 AM

Minor Periods

7:18 PM - 8:48 PM
5:21 AM - 6:51 AM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:28 AM
Sun Transit: 1:12 PM
Sunset: 7:56 PM
Daylight: 13 hrs 27 mins
Moonrise: 7:48 PM
Moon Transit: 12:34 AM
Moonset: 5:51 AM
Moon Phase: Full
Moon Illumination: 100.0%

Best Times for Fishing or Hunting

Major Periods

12:04 AM - 2:34 AM
7:56 AM - 10:26 AM

Minor Periods

7:18 PM - 8:48 PM
5:21 AM - 6:51 AM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:29 AM
Sun Transit: 1:11 PM
Sunset: 7:54 PM
Daylight: 13 hrs 24 mins
Moonrise: 8:07 PM
Moon Transit: 1:18 AM
Moonset: 7:00 AM
Moon Phase: Full
Moon Illumination: 98.7%

Best Times for Fishing or Hunting

Major Periods

12:48 AM - 3:18 AM
8:40 AM - 11:10 AM

Minor Periods

7:37 PM - 9:07 PM
6:30 AM - 8:00 AM

Action Rating: 5 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:29 AM
Sun Transit: 1:11 PM
Sunset: 7:54 PM
Daylight: 13 hrs 24 mins
Moonrise: 8:07 PM
Moon Transit: 1:18 AM
Moonset: 7:00 AM
Moon Phase: Full
Moon Illumination: 98.7%

Best Times for Fishing or Hunting

Major Periods

12:48 AM - 3:18 AM
8:40 AM - 11:10 AM

Minor Periods

7:37 PM - 9:07 PM
6:30 AM - 8:00 AM

Action Rating: 5 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:31 AM
Sun Transit: 1:11 PM
Sunset: 7:52 PM
Daylight: 13 hrs 21 mins
Moonrise: 8:25 PM
Moon Transit: 9:49 PM
Moonset: 8:10 AM
Moon Phase: Full
Moon Illumination: 95.0%

Best Times for Fishing or Hunting

Major Periods

9:24 AM - 11:54 AM
9:19 PM - 11:49 PM

Minor Periods

7:55 PM - 9:25 PM
7:40 AM - 9:10 AM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:31 AM
Sun Transit: 1:11 PM
Sunset: 7:52 PM
Daylight: 13 hrs 21 mins
Moonrise: 8:25 PM
Moon Transit: 9:49 PM
Moonset: 8:10 AM
Moon Phase: Full
Moon Illumination: 95.0%

Best Times for Fishing or Hunting

Major Periods

9:24 AM - 11:54 AM
9:19 PM - 11:49 PM

Minor Periods

7:55 PM - 9:25 PM
7:40 AM - 9:10 AM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:32 AM
Sun Transit: 1:11 PM
Sunset: 7:50 PM
Daylight: 13 hrs 19 mins
Moonrise: 8:45 PM
Moon Transit: 12:00 AM
Moonset: 9:21 AM
Moon Phase: Waning Gibbous
Moon Illumination: 88.9%

Best Times for Fishing or Hunting

Major Periods

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

Minor Periods

8:15 PM - 9:45 PM
8:51 AM - 10:21 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:32 AM
Sun Transit: 1:11 PM
Sunset: 7:50 PM
Daylight: 13 hrs 19 mins
Moonrise: 8:45 PM
Moon Transit: 12:00 AM
Moonset: 9:21 AM
Moon Phase: Waning Gibbous
Moon Illumination: 88.9%

Best Times for Fishing or Hunting

Major Periods

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

Minor Periods

8:15 PM - 9:45 PM
8:51 AM - 10:21 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:33 AM
Sun Transit: 1:10 PM
Sunset: 7:48 PM
Daylight: 13 hrs 16 mins
Moonrise: 9:06 PM
Moon Transit: 3:31 AM
Moonset: 10:34 AM
Moon Phase: Waning Gibbous
Moon Illumination: 80.9%

Best Times for Fishing or Hunting

Major Periods

3:01 AM - 5:31 AM
10:55 AM - 1:25 PM

Minor Periods

8:36 PM - 10:06 PM
10:04 AM - 11:34 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:33 AM
Sun Transit: 1:10 PM
Sunset: 7:48 PM
Daylight: 13 hrs 16 mins
Moonrise: 9:06 PM
Moon Transit: 3:31 AM
Moonset: 10:34 AM
Moon Phase: Waning Gibbous
Moon Illumination: 80.9%

Best Times for Fishing or Hunting

Major Periods

3:01 AM - 5:31 AM
10:55 AM - 1:25 PM

Minor Periods

8:36 PM - 10:06 PM
10:04 AM - 11:34 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:34 AM
Sun Transit: 1:10 PM
Sunset: 7:47 PM
Daylight: 13 hrs 13 mins
Moonrise: 9:33 PM
Moon Transit: 4:20 AM
Moonset: 11:50 AM
Moon Phase: Waning Gibbous
Moon Illumination: 71.2%

Best Times for Fishing or Hunting

Major Periods

3:50 AM - 6:20 AM
11:45 AM - 2:15 PM

Minor Periods

9:03 PM - 10:33 PM
11:20 AM - 12:50 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:34 AM
Sun Transit: 1:10 PM
Sunset: 7:47 PM
Daylight: 13 hrs 13 mins
Moonrise: 9:33 PM
Moon Transit: 4:20 AM
Moonset: 11:50 AM
Moon Phase: Waning Gibbous
Moon Illumination: 71.2%

Best Times for Fishing or Hunting

Major Periods

3:50 AM - 6:20 AM
11:45 AM - 2:15 PM

Minor Periods

9:03 PM - 10:33 PM
11:20 AM - 12:50 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:35 AM
Sun Transit: 1:10 PM
Sunset: 7:45 PM
Daylight: 13 hrs 10 mins
Moonrise: 10:06 PM
Moon Transit: 5:12 AM
Moonset: 1:08 PM
Moon Phase: Waning Gibbous
Moon Illumination: 60.5%

Best Times for Fishing or Hunting

Major Periods

4:42 AM - 7:12 AM
12:39 AM - 3:09 PM

Minor Periods

9:36 PM - 11:06 PM
12:38 AM - 2:08 PM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:35 AM
Sun Transit: 1:10 PM
Sunset: 7:45 PM
Daylight: 13 hrs 10 mins
Moonrise: 10:06 PM
Moon Transit: 5:12 AM
Moonset: 1:08 PM
Moon Phase: Waning Gibbous
Moon Illumination: 60.5%

Best Times for Fishing or Hunting

Major Periods

4:42 AM - 7:12 AM
12:39 AM - 3:09 PM

Minor Periods

9:36 PM - 11:06 PM
12:38 AM - 2:08 PM

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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