Water Temperature of the South Santiam River in Cascadia, OR

Current Water Temperature

46.6°F

Measurement Time: Wednesday, April 1, 2026, 12:10 PM PDT

Temperature Locations

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Local Points of Interest

Cascadia State Park; Foster, OR

South Santiam River

Station Name: SOUTH SANTIAM RIVER BELOW CASCADIA, OR
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 860 feet

Nearest Address:
47795 Santiam Hwy
Cascadia, OR 97329
Linn County

GPS Coordinates: 44.39179225, -122.4975817

Nearby Water Temperatures

Middle Santiam River, Foster, OR (4.7 mi)
South Santiam River, Sweet Home, OR (9.5 mi)
Middle Santiam River, Cascadia, OR (10.5 mi)
Quartzville Creek, Cascadia, OR (10.7 mi)
Blue River, Blue River, OR (16.6 mi)
North Fork Quartz Creek, Blue River, OR (16.9 mi)
Lookout Creek, Blue River, OR (17.3 mi)
Blue River Lake, Blue River, OR (17.4 mi)
South Santiam River, Waterloo, OR (17.7 mi)
Blue River, Blue River, OR (17.8 mi)
McKenzie River, Vida, OR (18.5 mi)
South Fork McKenzie River, Rainbow, OR (21.6 mi)
Smith River, Belknap Springs, OR (22.6 mi)
Smith River, Foster, OR (23.3 mi)
McKenzie River, Belknap Springs, OR (23.7 mi)

Weather for Cascadia, Oregon

Current Weather

42.4°F
Light sleet
Light sleet
38.4°F
42.4°F
83%
SW 7.2 mph
8.9 mph
38.4°F
36.6°F
0.08 in
51%
6 mi
1003 mbar
0

Five Day Weather Forecast

Moderate rain
Wed
H: 53°F
L: 38°F
Moderate rain
Thu
H: 47°F
L: 32°F
Partly Cloudy
Fri
H: 62°F
L: 41°F
Sunny
Sat
H: 71°F
L: 38°F
Partly Cloudy
Sun
H: 77°F
L: 41°F

Air Quality

AQI: 1 - Good
PM2.5: 1.05 μg/m3
PM10: 1.15 μg/m3
Carbon Monoxide: 157.85 μg/m3
Nitrogen Dioxide: 1.75 μg/m3
Sulphur Dioxide: 0.95 μg/m3
Ozone: 87 μg/m3

Astronomical

Sunrise: 6:51 AM
Sun Transit: 1:13 PM
Sunset: 7:37 PM
Daylight: 12 hrs 47 mins
Moonrise: 7:41 PM
Moon Transit: 12:37 AM
Moonset: 6:29 AM
Moon Phase: Full
Moon Illumination: 99.8%

Best Times for Fishing or Hunting

Major Periods

12:07 AM - 2:37 AM
8:00 AM - 10:30 AM

Minor Periods

7:11 PM - 8:41 PM
5:59 AM - 7:29 AM

Action Rating: 4 out of 5

Winter Storm Warning issued April 1 at 9:58AM PDT until April 2 at 5:00PM PDT by NWS Portland OR

Effective: Wed April 1, 2026, 9:58 AM
Expires: Thu April 2, 2026, 2:00 AM

* WHAT...Heavy snow expected. Additional snow accumulations between 10 and 18 inches, except 18 to 24 inches above 5500 feet. Winds gusting as high as 40 mph. * WHERE...Cascades of Lane County and Cascades of Marion and Linn Counties. * WHEN...Until 5 PM PDT Thursday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. * ADDITIONAL DETAILS...There is a 60-80% chance for snowfall rates exceeding 1 inch per hour along Santiam and Willamette Passes, with the highest chances occurring between 2-7 PM Wednesday and between 2-8 AM Thursday.

Consider postponing travel until weather conditions improve. If you must travel, be sure to slow down and allow extra time. If your car becomes trapped in deep snow, be sure to keep your car off to stay safe from potential carbon monoxide poisoning. If you are using a generator, be sure to keep it outdoors and away from windows and vents. Be aware that walking surfaces may be slick. Walk with extra care. Backcountry recreation is not advised.
Wednesday, April 1, 2026

Weather Forecast

Moderate rain
52.5°F
38.1°F
46°F
83%
0.77 in
87%
0%
12.8 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 2.97 μg/m3
PM10: 3.67 μg/m3
Carbon Monoxide: 145.69 μg/m3
Nitrogen Dioxide: 2.8 μg/m3
Sulphur Dioxide: 1.07 μg/m3
Ozone: 72.56 μg/m3

Astronomical

Sunrise: 6:51 AM
Sun Transit: 1:13 PM
Sunset: 7:37 PM
Daylight: 12 hrs 47 mins
Moonrise: 7:41 PM
Moon Transit: 12:37 AM
Moonset: 6:29 AM
Moon Phase: Full
Moon Illumination: 99.8%

Best Times for Fishing or Hunting

Major Periods

12:07 AM - 2:37 AM
8:00 AM - 10:30 AM

Minor Periods

7:11 PM - 8:41 PM
5:59 AM - 7:29 AM

Action Rating: 4 out of 5

Thursday, April 2, 2026

Weather Forecast

Moderate rain
47.1°F
32.2°F
40.8°F
87%
0.41 in
87%
0%
5.6 mph
0.4


Air Quality

AQI: 1 - Good
PM2.5: 1.33 μg/m3
PM10: 1.57 μg/m3
Carbon Monoxide: 157.21 μg/m3
Nitrogen Dioxide: 1.99 μg/m3
Sulphur Dioxide: 0.99 μg/m3
Ozone: 79.88 μg/m3

Astronomical

Sunrise: 6:49 AM
Sun Transit: 1:13 PM
Sunset: 7:39 PM
Daylight: 12 hrs 50 mins
Moonrise: 8:49 PM
Moon Transit: 1:19 AM
Moonset: 6:48 AM
Moon Phase: Full
Moon Illumination: 99.5%

Best Times for Fishing or Hunting

Major Periods

12:49 AM - 3:19 AM
8:43 AM - 11:13 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
61.5°F
41.4°F
49.4°F
72%
0 in
0%
0%
4.9 mph
1.4


Air Quality

AQI: 1 - Good
PM2.5: 2.82 μg/m3
PM10: 3.79 μg/m3
Carbon Monoxide: 175.73 μg/m3
Nitrogen Dioxide: 3.03 μg/m3
Sulphur Dioxide: 1.21 μg/m3
Ozone: 80.24 μg/m3

Astronomical

Sunrise: 6:47 AM
Sun Transit: 1:13 PM
Sunset: 7:40 PM
Daylight: 12 hrs 53 mins
Moonrise: 9:56 PM
Moon Transit: 2:02 AM
Moonset: 7:07 AM
Moon Phase: Full
Moon Illumination: 96.6%

Best Times for Fishing or Hunting

Major Periods

1:32 AM - 4:02 AM
9:26 AM - 11:56 AM

Minor Periods

9:26 PM - 10:56 PM
6:37 AM - 8:07 AM

Action Rating: 4 out of 5

Saturday, April 4, 2026

Weather Forecast

Sunny
70.5°F
38.3°F
52.9°F
67%
0 in
0%
0%
5.8 mph
1.4


Air Quality

AQI: 1 - Good
PM2.5: 3.88 μg/m3
PM10: 5.49 μg/m3
Carbon Monoxide: 195.75 μg/m3
Nitrogen Dioxide: 4.57 μg/m3
Sulphur Dioxide: 1.27 μg/m3
Ozone: 77.6 μg/m3

Astronomical

Sunrise: 6:46 AM
Sun Transit: 1:12 PM
Sunset: 7:41 PM
Daylight: 12 hrs 56 mins
Moonrise: 11:04 PM
Moon Transit: 2:47 AM
Moonset: 7:30 AM
Moon Phase: Full
Moon Illumination: 91.3%

Best Times for Fishing or Hunting

Major Periods

2:17 AM - 4:47 AM
10:12 AM - 12:42 AM

Minor Periods

12:00 AM - 12:00 AM
7:00 AM - 8:30 AM

Action Rating: 4 out of 5

Sunday, April 5, 2026

Weather Forecast

Partly Cloudy
77.3°F
40.5°F
55.5°F
69%
0 in
0%
0%
6.3 mph
1.3


Air Quality

AQI: 1 - Good
PM2.5: 2.97 μg/m3
PM10: 3.7 μg/m3
Carbon Monoxide: 194.58 μg/m3
Nitrogen Dioxide: 4.7 μg/m3
Sulphur Dioxide: 1.14 μg/m3
Ozone: 70.62 μg/m3

Astronomical

Sunrise: 6:44 AM
Sun Transit: 1:12 PM
Sunset: 7:42 PM
Daylight: 12 hrs 59 mins
Moonrise: 12:04 AM
Moon Transit: 3:34 AM
Moonset: 7:58 AM
Moon Phase: Waning Gibbous
Moon Illumination: 83.9%

Best Times for Fishing or Hunting

Major Periods

3:04 AM - 5:34 AM
10:59 AM - 1:29 PM

Minor Periods

7:28 AM - 8:58 AM
12:00 AM - 12:00 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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