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

Current Water Temperature

56.3°F

Measurement Time: Sunday, October 5, 2025, 8:50 PM PDT

Temperature Locations

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Local Points of Interest

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

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South Santiam River

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

Elevation Above Sea Level: 564 feet / 172 meters

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 (24.0 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

48.9°F
Clear
Conditions: Clear
Humidity: 80%
Feels Like: 47.1°F
Wind: E 4.7 mph
Wind Gusts: 9.9 mph
Pressure: 30.06 in
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 9 mi
UV Index: 0

Five Day Weather Forecast

Sunny
Mon
H: 80°F
L: 49°F
Sunny
Tue
H: 82°F
L: 56°F
Mist
Wed
H: 53°F
L: 45°F
Partly Cloudy
Thu
H: 63°F
L: 41°F
Moderate rain
Fri
H: 67°F
L: 44°F

Air Quality

PM2.5: 2.25 μg/m3
PM10: 2.25 μg/m3
Carbon Monoxide: 153.85 μg/m3
Nitrogen Dioxide: 3.95 μg/m3
Sulphur Dioxide: 1.25 μg/m3
Ozone: 52 μg/m3

Astronomical

Sunrise: 7:15 AM
Sun Transit: 12:58 AM
Sunset: 6:42 PM
Daylight: 11 hrs 27 mins
Moonrise: 6:23 PM
Moon Transit: 12:00 AM
Moonset: 6:40 AM
Moon Phase: Full
Moon Illumination: 100.0%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
7:37 AM - 10:07 AM

Minor Periods

5:53 PM - 7:23 PM
6:10 AM - 7:40 AM

Action Rating: 5 out of 5

Monday, October 6, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 63.5°F
Average Humidity: 30%
Chance of Rain: 0%
Wind: 5.8 mph
UV Index: 0.9

Air Quality

AQI: 1 - Good
PM2.5: 2.71 μg/m3
PM10: 2.77 μg/m3
Carbon Monoxide: 152.77 μg/m3
Nitrogen Dioxide: 5.27 μg/m3
Sulphur Dioxide: 1.39 μg/m3
Ozone: 59 μg/m3

Astronomical

Sunrise: 7:15 AM
Sun Transit: 12:58 AM
Sunset: 6:42 PM
Daylight: 11 hrs 27 mins
Moonrise: 6:23 PM
Moon Transit: 12:00 AM
Moonset: 6:40 AM
Moon Phase: Full
Moon Illumination: 100.0%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
7:37 AM - 10:07 AM

Minor Periods

5:53 PM - 7:23 PM
6:10 AM - 7:40 AM

Action Rating: 5 out of 5

Tuesday, October 7, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 67.6°F
Average Humidity: 33%
Chance of Rain: 0%
Wind: 5.4 mph
UV Index: 0.9

Air Quality

AQI: 1 - Good
PM2.5: 2.86 μg/m3
PM10: 3.06 μg/m3
Carbon Monoxide: 158.21 μg/m3
Nitrogen Dioxide: 5.67 μg/m3
Sulphur Dioxide: 1.28 μg/m3
Ozone: 61.12 μg/m3

Astronomical

Sunrise: 7:16 AM
Sun Transit: 12:58 AM
Sunset: 6:40 PM
Daylight: 11 hrs 24 mins
Moonrise: 6:47 PM
Moon Transit: 1:03 AM
Moonset: 8:01 AM
Moon Phase: Full
Moon Illumination: 99.1%

Best Times for Fishing or Hunting

Major Periods

12:33 AM - 3:03 AM
8:28 AM - 10:58 AM

Minor Periods

6:17 PM - 7:47 PM
7:31 AM - 9:01 AM

Action Rating: 5 out of 5

Wednesday, October 8, 2025

Weather Forecast

Conditions: Mist
Average Temperature: 51.8°F
Average Humidity: 82%
Chance of Rain: 0%
Wind: 6.3 mph
UV Index: 0.9

Air Quality

AQI: 1 - Good
PM2.5: 5.8 μg/m3
PM10: 7.96 μg/m3
Carbon Monoxide: 152.77 μg/m3
Nitrogen Dioxide: 4.13 μg/m3
Sulphur Dioxide: 1.84 μg/m3
Ozone: 65.2 μg/m3

Astronomical

Sunrise: 7:17 AM
Sun Transit: 12:58 AM
Sunset: 6:38 PM
Daylight: 11 hrs 21 mins
Moonrise: 7:14 PM
Moon Transit: 1:57 AM
Moonset: 9:25 AM
Moon Phase: Full
Moon Illumination: 95.8%

Best Times for Fishing or Hunting

Major Periods

1:27 AM - 3:57 AM
9:23 AM - 11:53 AM

Minor Periods

6:44 PM - 8:14 PM
8:55 AM - 10:25 AM

Action Rating: 4 out of 5

Thursday, October 9, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 49.7°F
Average Humidity: 79%
Chance of Rain: 0%
Wind: 4.5 mph
UV Index: 0.7

Air Quality

AQI: 1 - Good
PM2.5: 8.24 μg/m3
PM10: 11.72 μg/m3
Carbon Monoxide: 173.62 μg/m3
Nitrogen Dioxide: 7.48 μg/m3
Sulphur Dioxide: 1.72 μg/m3
Ozone: 54.08 μg/m3

Astronomical

Sunrise: 7:19 AM
Sun Transit: 12:57 AM
Sunset: 6:36 PM
Daylight: 11 hrs 18 mins
Moonrise: 7:49 PM
Moon Transit: 2:54 AM
Moonset: 10:51 AM
Moon Phase: Waning Gibbous
Moon Illumination: 90.1%

Best Times for Fishing or Hunting

Major Periods

2:24 AM - 4:54 AM
10:21 AM - 12:51 AM

Minor Periods

7:19 PM - 8:49 PM
10:21 AM - 11:51 AM

Action Rating: 2 out of 5

Friday, October 10, 2025

Weather Forecast

Conditions: Moderate rain
Average Temperature: 49.8°F
Average Humidity: 81%
Chance of Rain: 79%
Wind: 6.7 mph
UV Index: 0

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: 7:20 AM
Sun Transit: 12:57 AM
Sunset: 6:35 PM
Daylight: 11 hrs 15 mins
Moonrise: 8:35 PM
Moon Transit: 3:55 AM
Moonset: 12:14 AM
Moon Phase: Waning Gibbous
Moon Illumination: 82.3%

Best Times for Fishing or Hunting

Major Periods

3:25 AM - 5:55 AM
11:23 AM - 1:53 PM

Minor Periods

8:05 PM - 9:35 PM
11:44 AM - 1:14 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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