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

Current Water Temperature

51.8°F

Measurement Time: Thursday, August 27, 2026, 11:40 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

52°F

Conditions: Areas Of Fog

Humidity: 100%

Wind: 0 mph

Dew Point: 52°F

Weather Forecast

Today
78°F - Areas Of Fog then Sunny

Tonight
48°F - Partly Cloudy then Areas Of Fog

Saturday
73°F - Areas Of Fog then Partly Sunny

Saturday Night
45°F - Mostly Clear then Patchy Fog

Sunday
76°F - Areas Of Fog then Sunny

Sunday Night
48°F - Mostly Clear

Monday
79°F - Mostly Sunny

Monday Night
50°F - Mostly Cloudy then Chance Light Rain

Tuesday
72°F - Chance Light Rain

Tuesday Night
50°F - Chance Light Rain

Wednesday
66°F - Chance Light Rain

Wednesday Night
49°F - Light Rain Likely

Thursday
67°F - Light Rain Likely

Thursday Night
47°F - Chance Light Rain

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

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 6:36 AM
Sun Transit: 1:10 PM
Sunset: 7:43 PM
Daylight: 13 hrs 7 mins

Moonrise: 10:50 PM
Moon Transit: 6:09 AM
Moonset: 2:25 PM
Moon Phase: Last Quarter
Moon Illumination: 49.2%

Best Times for Fishing or Hunting

Major Periods

5:39 AM - 8:09 AM
1:37 PM - 4:07 PM

Minor Periods

10:20 PM - 11:50 PM
1:55 PM - 3:25 PM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 6:36 AM
Sun Transit: 1:10 PM
Sunset: 7:43 PM
Daylight: 13 hrs 7 mins

Moonrise: 10:50 PM
Moon Transit: 6:09 AM
Moonset: 2:25 PM
Moon Phase: Last Quarter
Moon Illumination: 49.2%

Best Times for Fishing or Hunting

Major Periods

5:39 AM - 8:09 AM
1:37 PM - 4:07 PM

Minor Periods

10:20 PM - 11:50 PM
1:55 PM - 3:25 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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