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

Current Water Temperature

46.4°F

Measurement Time: Sunday, January 4, 2026, 11:00 AM PST

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

42.1°F
Light rain
Light rain
40.1°F
44.6°F
92%
SW 3.6 mph
6.4 mph
41.6°F
42.9°F
0.05 in
25%
9 mi
1005 mbar
0

Five Day Weather Forecast

Moderate rain
Sun
H: 52°F
L: 41°F
Patchy rain nearby
Mon
H: 43°F
L: 30°F
Heavy rain
Tue
H: 40°F
L: 33°F
Heavy rain
Wed
H: 42°F
L: 32°F
Patchy rain nearby
Thu
H: 41°F
L: 32°F

Air Quality

AQI: 1 - Good
PM2.5: 1.85 μg/m3
PM10: 2.35 μg/m3
Carbon Monoxide: 138.85 μg/m3
Nitrogen Dioxide: 2.75 μg/m3
Sulphur Dioxide: 1.25 μg/m3
Ozone: 70 μg/m3

Astronomical

Sunrise: 7:47 AM
Sun Transit: 12:15 AM
Sunset: 4:45 PM
Daylight: 8 hrs 58 mins
Moonrise: 6:28 PM
Moon Transit: 1:15 AM
Moonset: 9:10 AM
Moon Phase: Full
Moon Illumination: 98.1%

Best Times for Fishing or Hunting

Major Periods

12:45 AM - 3:15 AM
8:42 AM - 11:12 AM

Minor Periods

5:58 PM - 7:28 PM
8:40 AM - 10:10 AM

Action Rating: 3 out of 5

Winter Storm Watch issued January 4 at 12:29PM PST until January 8 at 4:00AM PST by NWS Portland OR

Effective: Sun January 4, 2026, 12:29 PM
Expires: Mon January 5, 2026, 6:00 AM

* WHAT...Heavy snow possible. Total snow accumulations up to one to two feet possible. Winds could gust as high as 40 mph. * WHERE...South Washington Cascades and the Northern and Central Cascades of Oregon. * WHEN...From late Monday night through late Wednesday night. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous.

Winterize your vehicle and have a winter emergency driving kit readily available. Make sure your emergency kit has the following items: flashlights, batteries, blankets, a shovel, water, non-perishable food items, tire chains, etc. Now is a good time to put snow tires on your vehicle. Check on friends and family to see if they need help preparing. Monitor the latest forecasts for updates on this situation. Persons should consider delaying all travel. If travel is absolutely necessary, drive with extreme caution.
Sunday, January 4, 2026

Weather Forecast

Moderate rain
52.3°F
41.2°F
46.6°F
85%
0.4 in
89%
0%
14.1 mph
0.1


Air Quality

AQI: 1 - Good
PM2.5: 1.59 μg/m3
PM10: 1.85 μg/m3
Carbon Monoxide: 151.41 μg/m3
Nitrogen Dioxide: 2.71 μg/m3
Sulphur Dioxide: 1.14 μg/m3
Ozone: 74.28 μg/m3

Astronomical

Sunrise: 7:47 AM
Sun Transit: 12:15 AM
Sunset: 4:45 PM
Daylight: 8 hrs 58 mins
Moonrise: 6:28 PM
Moon Transit: 1:15 AM
Moonset: 9:10 AM
Moon Phase: Full
Moon Illumination: 98.1%

Best Times for Fishing or Hunting

Major Periods

12:45 AM - 3:15 AM
8:42 AM - 11:12 AM

Minor Periods

5:58 PM - 7:28 PM
8:40 AM - 10:10 AM

Action Rating: 3 out of 5

Monday, January 5, 2026

Weather Forecast

Patchy rain nearby
43.2°F
30.3°F
39.4°F
90%
0.02 in
89%
0%
5.4 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 2.22 μg/m3
PM10: 2.59 μg/m3
Carbon Monoxide: 146.85 μg/m3
Nitrogen Dioxide: 4.05 μg/m3
Sulphur Dioxide: 1.46 μg/m3
Ozone: 67.88 μg/m3

Astronomical

Sunrise: 7:47 AM
Sun Transit: 12:16 AM
Sunset: 4:46 PM
Daylight: 9 hrs mins
Moonrise: 7:47 PM
Moon Transit: 2:12 AM
Moonset: 9:41 AM
Moon Phase: Full
Moon Illumination: 93.7%

Best Times for Fishing or Hunting

Major Periods

1:42 AM - 4:12 AM
9:37 AM - 12:07 AM

Minor Periods

7:17 PM - 8:47 PM
9:11 AM - 10:41 AM

Action Rating: 3 out of 5

Tuesday, January 6, 2026

Weather Forecast

Heavy rain
39.9°F
32.9°F
35.1°F
82%
0.84 in
82%
3%
12.3 mph
0.1


Air Quality

AQI: 1 - Good
PM2.5: 5.9 μg/m3
PM10: 6.59 μg/m3
Carbon Monoxide: 184.57 μg/m3
Nitrogen Dioxide: 11.85 μg/m3
Sulphur Dioxide: 2.42 μg/m3
Ozone: 41.76 μg/m3

Astronomical

Sunrise: 7:47 AM
Sun Transit: 12:16 AM
Sunset: 4:47 PM
Daylight: 9 hrs 1 mins
Moonrise: 9:02 PM
Moon Transit: 3:03 AM
Moonset: 10:05 AM
Moon Phase: Waning Gibbous
Moon Illumination: 87.1%

Best Times for Fishing or Hunting

Major Periods

2:33 AM - 5:03 AM
10:27 AM - 12:57 AM

Minor Periods

8:32 PM - 10:02 PM
9:35 AM - 11:05 AM

Action Rating: 2 out of 5

Wednesday, January 7, 2026

Weather Forecast

Heavy rain
42.1°F
32.3°F
36.9°F
95%
1.14 in
89%
17%
11.2 mph
0.1


Air Quality

AQI: 1 - Good
PM2.5: 3.27 μg/m3
PM10: 4.23 μg/m3
Carbon Monoxide: 147.5 μg/m3
Nitrogen Dioxide: 2.86 μg/m3
Sulphur Dioxide: 1.49 μg/m3
Ozone: 68.28 μg/m3

Astronomical

Sunrise: 7:46 AM
Sun Transit: 12:17 AM
Sunset: 4:48 PM
Daylight: 9 hrs 2 mins
Moonrise: 10:13 PM
Moon Transit: 3:50 AM
Moonset: 10:25 AM
Moon Phase: Waning Gibbous
Moon Illumination: 78.6%

Best Times for Fishing or Hunting

Major Periods

3:20 AM - 5:50 AM
11:13 AM - 1:43 PM

Minor Periods

9:43 PM - 11:13 PM
9:55 AM - 11:25 AM

Action Rating: 2 out of 5

Thursday, January 8, 2026

Weather Forecast

Patchy rain nearby
41°F
31.7°F
35.6°F
97%
0.19 in
89%
24%
5.8 mph
0.1


Air Quality

AQI: 1 - Good
PM2.5: 3.43 μg/m3
PM10: 4.7 μg/m3
Carbon Monoxide: 160.02 μg/m3
Nitrogen Dioxide: 2.98 μg/m3
Sulphur Dioxide: 1.41 μg/m3
Ozone: 69.69 μg/m3

Astronomical

Sunrise: 7:46 AM
Sun Transit: 12:17 AM
Sunset: 4:49 PM
Daylight: 9 hrs 3 mins
Moonrise: 11:20 PM
Moon Transit: 4:34 AM
Moonset: 10:43 AM
Moon Phase: Waning Gibbous
Moon Illumination: 68.7%

Best Times for Fishing or Hunting

Major Periods

4:04 AM - 6:34 AM
11:56 AM - 2:26 PM

Minor Periods

12:00 AM - 12:00 AM
10:13 AM - 11:43 AM

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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