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

Humidity: 54%
Feels Like: 66°F
Wind: WSW 3.1 mph
Wind Gusts: 5.1 mph
Precipitation: 0 in
Cloud Cover: 25%
Visibility: 9 mi
UV Index: 2.5
Five Day Weather Forecast

Sat
H: 73°F
L: 38°F

Sun
H: 53°F
L: 44°F

Mon
H: 62°F
L: 46°F

Tue
H: 64°F
L: 42°F

Wed
H: 62°F
L: 43°F
Air Quality
Nitrogen Dioxide: 22.75 μg/m3
Sulphur Dioxide: 4.35 μg/m3
Ozone: 32 μg/m3
Astronomical
Sun Transit: 12:55 AM
Sunset: 6:21 PM
Daylight: 10 hrs 51 mins
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 PM10:31 AM - 1:01 PM
Minor Periods
4:40 PM - 6:10 PM4:10 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.
Weather Forecast
Average Temperature: 55°F
Average Humidity: 53%
Wind: 5.1 mph
UV Index: 0.7
Air Quality
Nitrogen Dioxide: 11.47 μg/m3
Sulphur Dioxide: 1.98 μg/m3
Ozone: 43 μg/m3
Astronomical
Sun Transit: 12:55 AM
Sunset: 6:21 PM
Daylight: 10 hrs 51 mins
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 PM10:31 AM - 1:01 PM
Minor Periods
4:40 PM - 6:10 PM4:10 AM - 5:40 AM
Action Rating: 4 out of 5
Weather Forecast
Average Temperature: 49.5°F
Average Humidity: 89%
Wind: 10.1 mph
UV Index: 0.3
Air Quality
Nitrogen Dioxide: 8.09 μg/m3
Sulphur Dioxide: 3.51 μg/m3
Ozone: 58.24 μg/m3
Astronomical
Sun Transit: 12:55 AM
Sunset: 6:19 PM
Daylight: 10 hrs 48 mins
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 PM11:11 AM - 1:41 PM
Minor Periods
4:56 PM - 6:26 PM5:14 AM - 6:44 AM
Action Rating: 3 out of 5
Weather Forecast
Average Temperature: 51.6°F
Average Humidity: 79%
Wind: 6.9 mph
UV Index: 0.7
Air Quality
Nitrogen Dioxide: 4.9 μg/m3
Sulphur Dioxide: 2.4 μg/m3
Ozone: 58.2 μg/m3
Astronomical
Sun Transit: 12:55 AM
Sunset: 6:18 PM
Daylight: 10 hrs 45 mins
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 PM11:51 AM - 2:21 PM
Minor Periods
5:14 PM - 6:44 PM6:19 AM - 7:49 AM
Action Rating: 4 out of 5
Weather Forecast
Average Temperature: 50.1°F
Average Humidity: 62%
Wind: 4.3 mph
UV Index: 0
Air Quality
Nitrogen Dioxide: 14.22 μg/m3
Sulphur Dioxide: 3.07 μg/m3
Ozone: 37.08 μg/m3
Astronomical
Sun Transit: 12:55 AM
Sunset: 6:16 PM
Daylight: 10 hrs 42 mins
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 PM12:33 AM - 3:03 PM
Minor Periods
5:33 PM - 7:03 PM7:24 AM - 8:54 AM
Action Rating: 4 out of 5
Weather Forecast
Average Temperature: 52.3°F
Average Humidity: 62%
Wind: 6.5 mph
UV Index: 3
Air Quality
Nitrogen Dioxide: 16.74 μg/m3
Sulphur Dioxide: 2.8 μg/m3
Ozone: 31.92 μg/m3
Astronomical
Sun Transit: 12:55 AM
Sunset: 6:14 PM
Daylight: 10 hrs 39 mins
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 PM1:16 PM - 3:46 PM
Minor Periods
5:56 PM - 7:26 PM8:30 AM - 10:00 AM
Action Rating: 4 out of 5