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

Current Water Temperature

48.2°F

Measurement Time: Monday, March 30, 2026, 12:10 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

54°F
Sunny
Sunny
54.6°F
54.8°F
50%
NNW 2.5 mph
4.2 mph
54.1°F
44.4°F
0 in
0%
9 mi
1015 mbar
0

Five Day Weather Forecast

Sunny
Mon
H: 60°F
L: 38°F
Patchy rain nearby
Tue
H: 52°F
L: 44°F
Heavy rain
Wed
H: 49°F
L: 35°F
Heavy rain
Thu
H: 47°F
L: 35°F
Partly Cloudy
Fri
H: 57°F
L: 33°F

Air Quality

AQI: 1 - Good
PM2.5: 4.45 μg/m3
PM10: 5.45 μg/m3
Carbon Monoxide: 169.85 μg/m3
Nitrogen Dioxide: 10.35 μg/m3
Sulphur Dioxide: 1.55 μg/m3
Ozone: 50 μg/m3

Astronomical

Sunrise: 6:55 AM
Sun Transit: 1:15 PM
Sunset: 7:36 PM
Daylight: 12 hrs 40 mins
Moonrise: 5:25 PM
Moon Transit: 11:55 PM
Moonset: 5:54 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 93.0%

Best Times for Fishing or Hunting

Major Periods

6:33 AM - 9:03 AM
12:00 AM - 12:00 AM

Minor Periods

4:55 PM - 6:25 PM
5:24 AM - 6:54 AM

Action Rating: 4 out of 5

Winter Storm Watch issued March 30 at 9:21AM PDT until April 2 at 5:00PM PDT by NWS Portland OR

Effective: Mon March 30, 2026, 9:21 AM
Expires: Tue March 31, 2026, 2:15 AM

* WHAT...Heavy snow possible. Total snow accumulations between 10 to 18 inches possible. Winds could gust as high as 35 mph. * WHERE...Northern and Central Oregon Cascades. * WHEN...From late Tuesday night through Thursday afternoon. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. * ADDITIONAL DETAILS...Latest guidance suggests the heaviest snow accumulations are forecast over the Cascades from Marion to Lane Counties.

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 and warnings for updates on this situation.
Monday, March 30, 2026

Weather Forecast

Sunny
59.9°F
38.3°F
47.6°F
66%
0 in
0%
0%
5.1 mph
0.9


Air Quality

AQI: 1 - Good
PM2.5: 3.62 μg/m3
PM10: 4.59 μg/m3
Carbon Monoxide: 178.57 μg/m3
Nitrogen Dioxide: 4.04 μg/m3
Sulphur Dioxide: 1.71 μg/m3
Ozone: 74.28 μg/m3

Astronomical

Sunrise: 6:55 AM
Sun Transit: 1:15 PM
Sunset: 7:36 PM
Daylight: 12 hrs 40 mins
Moonrise: 5:25 PM
Moon Transit: 11:55 PM
Moonset: 5:54 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 93.0%

Best Times for Fishing or Hunting

Major Periods

6:33 AM - 9:03 AM
12:00 AM - 12:00 AM

Minor Periods

4:55 PM - 6:25 PM
5:24 AM - 6:54 AM

Action Rating: 4 out of 5

Tuesday, March 31, 2026

Weather Forecast

Patchy rain nearby
51.6°F
44°F
47.4°F
79%
0.03 in
85%
0%
4.7 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 3.96 μg/m3
PM10: 4.9 μg/m3
Carbon Monoxide: 187.77 μg/m3
Nitrogen Dioxide: 6.57 μg/m3
Sulphur Dioxide: 1.53 μg/m3
Ozone: 64.72 μg/m3

Astronomical

Sunrise: 6:53 AM
Sun Transit: 1:14 PM
Sunset: 7:37 PM
Daylight: 12 hrs 44 mins
Moonrise: 6:34 PM
Moon Transit: 12:00 AM
Moonset: 6:12 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
7:17 AM - 9:47 AM

Minor Periods

6:04 PM - 7:34 PM
5:42 AM - 7:12 AM

Action Rating: 5 out of 5

Wednesday, April 1, 2026

Weather Forecast

Heavy rain
48.6°F
35.1°F
43°F
89%
2.74 in
86%
0%
10.1 mph
0.1


Air Quality

AQI: 1 - Good
PM2.5: 4.02 μg/m3
PM10: 5.14 μg/m3
Carbon Monoxide: 157.25 μg/m3
Nitrogen Dioxide: 3.56 μg/m3
Sulphur Dioxide: 1.35 μg/m3
Ozone: 78.68 μg/m3

Astronomical

Sunrise: 6:52 AM
Sun Transit: 1:14 PM
Sunset: 7:38 PM
Daylight: 12 hrs 47 mins
Moonrise: 7:42 PM
Moon Transit: 12:37 AM
Moonset: 6:30 AM
Moon Phase: Full
Moon Illumination: 99.8%

Best Times for Fishing or Hunting

Major Periods

12:07 AM - 2:37 AM
7:59 AM - 10:29 AM

Minor Periods

7:12 PM - 8:42 PM
6:00 AM - 7:30 AM

Action Rating: 4 out of 5

Thursday, April 2, 2026

Weather Forecast

Heavy rain
47.1°F
34.5°F
41.2°F
92%
0.89 in
88%
0%
9.8 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 3.34 μg/m3
PM10: 4.6 μg/m3
Carbon Monoxide: 161.86 μg/m3
Nitrogen Dioxide: 2.08 μg/m3
Sulphur Dioxide: 1.19 μg/m3
Ozone: 77.12 μg/m3

Astronomical

Sunrise: 6:50 AM
Sun Transit: 1:14 PM
Sunset: 7:39 PM
Daylight: 12 hrs 50 mins
Moonrise: 8:49 PM
Moon Transit: 1:20 AM
Moonset: 6:48 AM
Moon Phase: Full
Moon Illumination: 99.5%

Best Times for Fishing or Hunting

Major Periods

12:50 AM - 3:20 AM
8:42 AM - 11:12 AM

Minor Periods

8:19 PM - 9:49 PM
6:18 AM - 7:48 AM

Action Rating: 3 out of 5

Friday, April 3, 2026

Weather Forecast

Partly Cloudy
57.2°F
33.4°F
43.4°F
81%
0 in
0%
0%
5.4 mph
1.3


Air Quality

AQI: 1 - Good
PM2.5: 5.14 μg/m3
PM10: 6.43 μg/m3
Carbon Monoxide: 258.25 μg/m3
Nitrogen Dioxide: 10.74 μg/m3
Sulphur Dioxide: 1.47 μg/m3
Ozone: 50.69 μg/m3

Astronomical

Sunrise: 6:48 AM
Sun Transit: 1:13 PM
Sunset: 7:41 PM
Daylight: 12 hrs 53 mins
Moonrise: 9:57 PM
Moon Transit: 2:03 AM
Moonset: 7:08 AM
Moon Phase: Full
Moon Illumination: 96.6%

Best Times for Fishing or Hunting

Major Periods

1:33 AM - 4:03 AM
9:26 AM - 11:56 AM

Minor Periods

9:27 PM - 10:57 PM
6:38 AM - 8:08 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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