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

Current Water Temperature

55.8°F 13.2°C
Cold Thermal Gear Required
55.8°F
Frigid < 50°F
Cold 50°–60°
Cool 60°–70°
Comfortable 70°–80°
Warm 80°+

Cold shock risk with rapid dexterity loss (10–15 mins). Wetsuit or drysuit strongly advised for any immersion.

Measurement Time: Tuesday, November 10, 2026, 1:30 AM PST

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

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

63.3°F
Overcast
Conditions: Overcast
Humidity: 73%
Feels Like: 63.9°F
Wind: SSE 2.2 mph
Wind Gusts: 14.5 mph
Pressure: 30.12 in
Precipitation: 0 in
Cloud Cover: 100%
Visibility: 13.9 mi
UV Index: 1

Weather Forecast

Fog
Tue
H: 69°F
L: 55°F
Overcast
Wed
H: 66°F
L: 50°F
Overcast
Thu
H: 60°F
L: 49°F
Moderate Rain
Fri
H: 55°F
L: 47°F
Light Drizzle
Sat
H: 54°F
L: 46°F

Air Quality

EPA Index 1 • Good

Air quality is satisfactory, and air pollution poses little or no risk.

PM2.5
2.7 μg/m³
Good
PM10
3 μg/m³
Good
Ozone (O3)
55 μg/m³
Photochemical
NO2
2.6 μg/m³
Nitrogen Dioxide
SO2
0.3 μg/m³
Sulfur Dioxide
CO
129 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 48m daylight
Sunrise 7:00 AM
Solar Noon 11:54 AM
Sunset 4:49 PM
Moon
New • 0%
Moonrise 8:50 AM
Transit 1:04 PM
Moonset 5:15 PM

Best Times for Fishing or Hunting

Major Periods

12:09 AM - 2:39 AM
12:34 PM - 3:04 PM

Minor Periods

8:20 AM - 9:50 AM
4:45 PM - 6:15 PM
Action Rating:
Very Good 4/5
Tuesday, November 10, 2026

Weather Forecast

Conditions: Fog
Average Temperature: 61.2°F
Average Humidity: 76%
Chance of Rain: 19%
Wind: 6.5 mph
UV Index: 2.6

Air Quality

EPA Index 1 • Good
PM2.5
4.4 μg/m³
Good
PM10
4.9 μg/m³
Good
Ozone (O3)
53.7 μg/m³
Photochemical
NO2
5.3 μg/m³
Nitrogen Dioxide
SO2
0.4 μg/m³
Sulfur Dioxide
CO
141.3 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 48m daylight
Sunrise 7:00 AM
Solar Noon 11:54 AM
Sunset 4:49 PM
Moon
New • 0%
Moonrise 8:50 AM
Transit 1:04 PM
Moonset 5:15 PM

Best Times for Fishing or Hunting

Major Periods

12:09 AM - 2:39 AM
12:34 PM - 3:04 PM

Minor Periods

8:20 AM - 9:50 AM
4:45 PM - 6:15 PM
Action Rating:
Very Good 4/5
Wednesday, November 11, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 57.4°F
Average Humidity: 68%
Chance of Rain: 2%
Wind: 6 mph
UV Index: 2.6

Air Quality

EPA Index 2 • Moderate
PM2.5
9.8 μg/m³
Good
PM10
10.8 μg/m³
Good
Ozone (O3)
31.6 μg/m³
Photochemical
NO2
10.6 μg/m³
Nitrogen Dioxide
SO2
0.6 μg/m³
Sulfur Dioxide
CO
168.1 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 46m daylight
Sunrise 7:02 AM
Solar Noon 11:54 AM
Sunset 4:48 PM
Moon
New • 2%
Moonrise 9:51 AM
Transit 1:56 PM
Moonset 6:00 PM

Best Times for Fishing or Hunting

Major Periods

1:00 AM - 3:30 AM
1:26 PM - 3:56 PM

Minor Periods

9:21 AM - 10:51 AM
5:30 PM - 7:00 PM
Action Rating:
Good Action 3/5
Thursday, November 12, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 54°F
Average Humidity: 68%
Chance of Rain: 5%
Wind: 5.7 mph
UV Index: 1.5

Air Quality

EPA Index 2 • Moderate
PM2.5
10.3 μg/m³
Good
PM10
11.4 μg/m³
Good
Ozone (O3)
35.7 μg/m³
Photochemical
NO2
9.2 μg/m³
Nitrogen Dioxide
SO2
0.5 μg/m³
Sulfur Dioxide
CO
172.8 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 43m daylight
Sunrise 7:03 AM
Solar Noon 11:54 AM
Sunset 4:46 PM
Moon
Waxing Crescent • 6%
Moonrise 10:44 AM
Transit 2:47 PM
Moonset 6:53 PM

Best Times for Fishing or Hunting

Major Periods

1:51 AM - 4:21 AM
2:17 PM - 4:47 PM

Minor Periods

10:14 AM - 11:44 AM
6:23 PM - 7:53 PM
Action Rating:
Good Action 3/5
Friday, November 13, 2026

Weather Forecast

Conditions: Moderate Rain
Average Temperature: 50.2°F
Average Humidity: 80%
Chance of Rain: 87%
Wind: 6.2 mph
UV Index: 0.8

Air Quality

EPA Index 2 • Moderate
PM2.5
5.6 μg/m³
Good
PM10
6.3 μg/m³
Good
Ozone (O3)
55.9 μg/m³
Photochemical
NO2
4.6 μg/m³
Nitrogen Dioxide
SO2
0.3 μg/m³
Sulfur Dioxide
CO
132 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 41m daylight
Sunrise 7:04 AM
Solar Noon 11:55 AM
Sunset 4:45 PM
Moon
Waxing Crescent • 13%
Moonrise 11:27 AM
Transit 3:38 PM
Moonset 7:53 PM

Best Times for Fishing or Hunting

Major Periods

2:43 AM - 5:13 AM
3:08 PM - 5:38 PM

Minor Periods

10:57 AM - 12:27 PM
7:23 PM - 8:53 PM
Action Rating:
Fair Action 2/5
Saturday, November 14, 2026

Weather Forecast

Conditions: Light Drizzle
Average Temperature: 49.1°F
Average Humidity: 85%
Chance of Rain: 74%
Wind: 8.7 mph
UV Index: 1.5

Air Quality

EPA Index 1 • Good
PM2.5
2.1 μg/m³
Good
PM10
2.8 μg/m³
Good
Ozone (O3)
70.8 μg/m³
Photochemical
NO2
1.3 μg/m³
Nitrogen Dioxide
SO2
0.4 μg/m³
Sulfur Dioxide
CO
121.2 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 39m daylight
Sunrise 7:06 AM
Solar Noon 11:55 AM
Sunset 4:44 PM
Moon
Waxing Crescent • 21%
Moonrise 12:03 PM
Transit 4:26 PM
Moonset 8:57 PM

Best Times for Fishing or Hunting

Major Periods

3:32 AM - 6:02 AM
3:56 PM - 6:26 PM

Minor Periods

11:33 AM - 1:03 PM
8:27 PM - 9:57 PM
Action Rating:
Fair Action 2/5
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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