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

Current Water Temperature

56.1°F

Measurement Time: Saturday, October 18, 2025, 8:40 AM 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

66°F
Sunny
Conditions: Sunny
Humidity: 54%
Feels Like: 66°F
Wind: WSW 3.1 mph
Wind Gusts: 5.1 mph
Pressure: 30.02 in
Precipitation: 0 in
Cloud Cover: 25%
Visibility: 9 mi
UV Index: 2.5

Five Day Weather Forecast

Sunny
Sat
H: 73°F
L: 38°F
Heavy rain
Sun
H: 53°F
L: 44°F
Partly Cloudy
Mon
H: 62°F
L: 46°F
Sunny
Tue
H: 64°F
L: 42°F
Patchy rain nearby
Wed
H: 62°F
L: 43°F

Air Quality

AQI: 1 - Good
PM2.5: 16.55 μg/m3
PM10: 18.15 μg/m3
Carbon Monoxide: 224.85 μg/m3
Nitrogen Dioxide: 22.75 μg/m3
Sulphur Dioxide: 4.35 μg/m3
Ozone: 32 μg/m3

Astronomical

Sunrise: 7:30 AM
Sun Transit: 12:55 AM
Sunset: 6:21 PM
Daylight: 10 hrs 51 mins
Moonrise: 4:40 AM
Moon Transit: 11:01 AM
Moonset: 5:10 PM
Moon Phase: Waning Crescent
Moon Illumination: 5.2%

Best Times for Fishing or Hunting

Major Periods

6:22 PM - 8:52 PM
10:31 AM - 1:01 PM

Minor Periods

4:40 PM - 6:10 PM
4:10 AM - 5:40 AM

Action Rating: 4 out of 5

Beach Hazards Statement issued October 17 at 8:34PM PDT until October 19 at 11:00PM PDT by NWS Portland OR

Effective: Fri October 17, 2025, 8:34 PM
Expires: Sun October 19, 2025, 11:00 PM

* WHAT...Sneaker waves possible. * WHERE...North and Central Coast of Oregon, and South Washington Coast. * WHEN...For the first Beach Hazards Statement, from this evening through Saturday evening. For the second Beach Hazards Statement, from Sunday afternoon through Sunday evening. * 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...A Beach Hazards Statement is issued when sneaker waves create potentially life-threatening conditions in the surf zone. Caution should be used when in or near the water. Always keep an eye on the waves, and be especially watchful of children and pets.

Remain out of the water to avoid hazardous swimming conditions.
Saturday, October 18, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 55°F
Average Humidity: 53%
Chance of Rain: 0%
Wind: 5.1 mph
UV Index: 0.7

Air Quality

AQI: 1 - Good
PM2.5: 7.16 μg/m3
PM10: 8.32 μg/m3
Carbon Monoxide: 163.73 μg/m3
Nitrogen Dioxide: 11.47 μg/m3
Sulphur Dioxide: 1.98 μg/m3
Ozone: 43 μg/m3

Astronomical

Sunrise: 7:30 AM
Sun Transit: 12:55 AM
Sunset: 6:21 PM
Daylight: 10 hrs 51 mins
Moonrise: 4:40 AM
Moon Transit: 11:01 AM
Moonset: 5:10 PM
Moon Phase: Waning Crescent
Moon Illumination: 5.2%

Best Times for Fishing or Hunting

Major Periods

6:22 PM - 8:52 PM
10:31 AM - 1:01 PM

Minor Periods

4:40 PM - 6:10 PM
4:10 AM - 5:40 AM

Action Rating: 4 out of 5

Sunday, October 19, 2025

Weather Forecast

Conditions: Heavy rain
Average Temperature: 49.5°F
Average Humidity: 89%
Chance of Rain: 88%
Wind: 10.1 mph
UV Index: 0.3

Air Quality

AQI: 1 - Good
PM2.5: 8.8 μg/m3
PM10: 10.42 μg/m3
Carbon Monoxide: 158.73 μg/m3
Nitrogen Dioxide: 8.09 μg/m3
Sulphur Dioxide: 3.51 μg/m3
Ozone: 58.24 μg/m3

Astronomical

Sunrise: 7:31 AM
Sun Transit: 12:55 AM
Sunset: 6:19 PM
Daylight: 10 hrs 48 mins
Moonrise: 5:44 AM
Moon Transit: 11:41 AM
Moonset: 5:26 PM
Moon Phase: Waning Crescent
Moon Illumination: 1.3%

Best Times for Fishing or Hunting

Major Periods

7:02 PM - 9:32 PM
11:11 AM - 1:41 PM

Minor Periods

4:56 PM - 6:26 PM
5:14 AM - 6:44 AM

Action Rating: 3 out of 5

Monday, October 20, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 51.6°F
Average Humidity: 79%
Chance of Rain: 0%
Wind: 6.9 mph
UV Index: 0.7

Air Quality

AQI: 1 - Good
PM2.5: 6.63 μg/m3
PM10: 8.97 μg/m3
Carbon Monoxide: 165.13 μg/m3
Nitrogen Dioxide: 4.9 μg/m3
Sulphur Dioxide: 2.4 μg/m3
Ozone: 58.2 μg/m3

Astronomical

Sunrise: 7:33 AM
Sun Transit: 12:55 AM
Sunset: 6:18 PM
Daylight: 10 hrs 45 mins
Moonrise: 6:49 AM
Moon Transit: 12:21 AM
Moonset: 5:44 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.0%

Best Times for Fishing or Hunting

Major Periods

7:43 PM - 10:13 PM
11:51 AM - 2:21 PM

Minor Periods

5:14 PM - 6:44 PM
6:19 AM - 7:49 AM

Action Rating: 4 out of 5

Tuesday, October 21, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 50.1°F
Average Humidity: 62%
Chance of Rain: 0%
Wind: 4.3 mph
UV Index: 0

Air Quality

AQI: 1 - Good
PM2.5: 9.73 μg/m3
PM10: 11.63 μg/m3
Carbon Monoxide: 210.13 μg/m3
Nitrogen Dioxide: 14.22 μg/m3
Sulphur Dioxide: 3.07 μg/m3
Ozone: 37.08 μg/m3

Astronomical

Sunrise: 7:34 AM
Sun Transit: 12:55 AM
Sunset: 6:16 PM
Daylight: 10 hrs 42 mins
Moonrise: 7:54 AM
Moon Transit: 1:03 PM
Moonset: 6:03 PM
Moon Phase: New
Moon Illumination: 1.2%

Best Times for Fishing or Hunting

Major Periods

8:25 PM - 10:55 PM
12:33 AM - 3:03 PM

Minor Periods

5:33 PM - 7:03 PM
7:24 AM - 8:54 AM

Action Rating: 4 out of 5

Wednesday, October 22, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 52.3°F
Average Humidity: 62%
Chance of Rain: 85%
Wind: 6.5 mph
UV Index: 3

Air Quality

AQI: 1 - Good
PM2.5: 11.06 μg/m3
PM10: 13.28 μg/m3
Carbon Monoxide: 252.23 μg/m3
Nitrogen Dioxide: 16.74 μg/m3
Sulphur Dioxide: 2.8 μg/m3
Ozone: 31.92 μg/m3

Astronomical

Sunrise: 7:35 AM
Sun Transit: 12:55 AM
Sunset: 6:14 PM
Daylight: 10 hrs 39 mins
Moonrise: 9:00 AM
Moon Transit: 1:46 PM
Moonset: 6:26 PM
Moon Phase: New
Moon Illumination: 0.0%

Best Times for Fishing or Hunting

Major Periods

9:09 PM - 11:39 PM
1:16 PM - 3:46 PM

Minor Periods

5:56 PM - 7:26 PM
8:30 AM - 10:00 AM

Action Rating: 4 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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