Water Temperature of the South Santiam River in Waterloo, OR

Current Water Temperature

58.5°F

Measurement Time: Tuesday, September 23, 2025, 2:40 PM PDT

Temperature Locations

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Local Points of Interest

Waterloo Falls; Lebanon, OR

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South Santiam River

Station Name: SOUTH SANTIAM RIVER AT WATERLOO, OR
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 472 feet / 144 meters

Nearest Address:
31187 1st St
Waterloo, OR 97355
Linn County

GPS Coordinates: 44.4984564, -122.8234214

Nearby Water Temperatures

South Santiam River, Sweet Home, OR (8.9 mi)
Middle Santiam River, Foster, OR (13.9 mi)
North Santiam River, Jefferson, OR (16.2 mi)
Willamette River , Albany, OR (17.0 mi)
South Santiam River, Cascadia, OR (17.7 mi)
Quartzville Creek, Cascadia, OR (19.3 mi)
Santiam River, Jefferson, OR (20.0 mi)
North Santiam River, Mehama, OR (20.6 mi)
Middle Santiam River, Cascadia, OR (22.3 mi)
Willamette River , Harrisburg, OR (23.4 mi)
Little North Santiam River, Lyons, OR (23.5 mi)
Long Tom River, Monroe, OR (26.6 mi)
McKenzie River, Eugene, OR (28.8 mi)
Camp Creek, Springfield, OR (29.7 mi)
McKenzie River, Walterville, OR (29.7 mi)

Weather for Waterloo, Oregon

Current Weather

72°F
Clear
Conditions: Clear
Humidity: 46%
Feels Like: 75°F
Wind: E 2.9 mph
Wind Gusts: 6.1 mph
Pressure: 29.93 in
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 9 mi
UV Index: 0

Five Day Weather Forecast

Sunny
Tue
H: 88°F
L: 48°F
Sunny
Wed
H: 91°F
L: 55°F
Partly Cloudy
Thu
H: 76°F
L: 49°F
Sunny
Fri
H: 77°F
L: 45°F
Sunny
Sat
H: 80°F
L: 49°F

Air Quality

AQI: 1 - Good
PM2.5: 6.48 μg/m3
PM10: 6.66 μg/m3
Carbon Monoxide: 419.95 μg/m3
Nitrogen Dioxide: 24.05 μg/m3
Sulphur Dioxide: 0.56 μg/m3
Ozone: 27 μg/m3

Astronomical

Sunrise: 7:00 AM
Sun Transit: 1:03 PM
Sunset: 7:06 PM
Daylight: 12 hrs 6 mins
Moonrise: 9:00 AM
Moon Transit: 2:24 PM
Moonset: 7:38 PM
Moon Phase: New
Moon Illumination: 0.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
1:54 PM - 4:24 PM

Minor Periods

7:08 PM - 8:38 PM
8:30 AM - 10:00 AM

Action Rating: 4 out of 5

Tuesday, September 23, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 66.8°F
Average Humidity: 51%
Chance of Rain: 0%
Wind: 8.5 mph
UV Index: 1.3

Air Quality

AQI: 1 - Good
PM2.5: 6.94 μg/m3
PM10: 7.7 μg/m3
Carbon Monoxide: 361.79 μg/m3
Nitrogen Dioxide: 13.58 μg/m3
Sulphur Dioxide: 1.95 μg/m3
Ozone: 59.68 μg/m3

Astronomical

Sunrise: 7:00 AM
Sun Transit: 1:03 PM
Sunset: 7:06 PM
Daylight: 12 hrs 6 mins
Moonrise: 9:00 AM
Moon Transit: 2:24 PM
Moonset: 7:38 PM
Moon Phase: New
Moon Illumination: 0.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
1:54 PM - 4:24 PM

Minor Periods

7:08 PM - 8:38 PM
8:30 AM - 10:00 AM

Action Rating: 4 out of 5

Wednesday, September 24, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 70.5°F
Average Humidity: 48%
Chance of Rain: 0%
Wind: 11.6 mph
UV Index: 1.2

Air Quality

AQI: 1 - Good
PM2.5: 13.25 μg/m3
PM10: 13.74 μg/m3
Carbon Monoxide: 428.46 μg/m3
Nitrogen Dioxide: 17.43 μg/m3
Sulphur Dioxide: 2.75 μg/m3
Ozone: 67.16 μg/m3

Astronomical

Sunrise: 7:01 AM
Sun Transit: 1:03 PM
Sunset: 7:04 PM
Daylight: 12 hrs 3 mins
Moonrise: 10:06 AM
Moon Transit: 3:06 PM
Moonset: 7:58 PM
Moon Phase: New
Moon Illumination: 3.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:36 PM - 5:06 PM

Minor Periods

7:28 PM - 8:58 PM
9:36 AM - 11:06 AM

Action Rating: 4 out of 5

Thursday, September 25, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 60.9°F
Average Humidity: 67%
Chance of Rain: 0%
Wind: 9.2 mph
UV Index: 1.2

Air Quality

AQI: 1 - Good
PM2.5: 15.1 μg/m3
PM10: 16.52 μg/m3
Carbon Monoxide: 295.7 μg/m3
Nitrogen Dioxide: 14.32 μg/m3
Sulphur Dioxide: 3.34 μg/m3
Ozone: 61.16 μg/m3

Astronomical

Sunrise: 7:02 AM
Sun Transit: 1:02 PM
Sunset: 7:02 PM
Daylight: 12 hrs mins
Moonrise: 11:12 AM
Moon Transit: 3:50 PM
Moonset: 8:23 PM
Moon Phase: Waxing Crescent
Moon Illumination: 8.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
3:20 PM - 5:50 PM

Minor Periods

7:53 PM - 9:23 PM
10:42 AM - 12:12 AM

Action Rating: 2 out of 5

Friday, September 26, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 58.5°F
Average Humidity: 63%
Chance of Rain: 0%
Wind: 11.4 mph
UV Index: 1.3

Air Quality

AQI: 1 - Good
PM2.5: 7.86 μg/m3
PM10: 9.78 μg/m3
Carbon Monoxide: 280.98 μg/m3
Nitrogen Dioxide: 10.63 μg/m3
Sulphur Dioxide: 2.95 μg/m3
Ozone: 57.68 μg/m3

Astronomical

Sunrise: 7:04 AM
Sun Transit: 1:02 PM
Sunset: 7:00 PM
Daylight: 11 hrs 57 mins
Moonrise: 12:18 AM
Moon Transit: 4:37 PM
Moonset: 8:52 PM
Moon Phase: Waxing Crescent
Moon Illumination: 16.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
4:07 PM - 6:37 PM

Minor Periods

8:22 PM - 9:52 PM
11:48 AM - 1:18 PM

Action Rating: 3 out of 5

Saturday, September 27, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 61.9°F
Average Humidity: 53%
Chance of Rain: 0%
Wind: 5.8 mph
UV Index: 1.1

Air Quality

AQI: 1 - Good
PM2.5: 9.41 μg/m3
PM10: 9.71 μg/m3
Carbon Monoxide: 357.19 μg/m3
Nitrogen Dioxide: 16.69 μg/m3
Sulphur Dioxide: 2.9 μg/m3
Ozone: 60.46 μg/m3

Astronomical

Sunrise: 7:05 AM
Sun Transit: 1:02 PM
Sunset: 6:59 PM
Daylight: 11 hrs 54 mins
Moonrise: 1:22 PM
Moon Transit: 5:27 PM
Moonset: 9:30 PM
Moon Phase: Waxing Crescent
Moon Illumination: 25.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 2:30 AM
4:57 PM - 7:27 PM

Minor Periods

9:00 PM - 10:30 PM
12:52 AM - 2:22 PM

Action Rating: 3 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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