Water Temperature of the South Santiam River in Cascadia, OR

Current Water Temperature

43.7°F

Measurement Time: Saturday, January 10, 2026, 4:40 PM PST

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

39.9°F
Clear
Clear
36.1°F
47.9°F
97%
ESE 5.4 mph
11.3 mph
46.1°F
23°F
0 in
0%
8 mi
1030 mbar
0

Five Day Weather Forecast

Partly Cloudy
Sun
H: 56°F
L: 33°F
Partly Cloudy
Mon
H: 58°F
L: 37°F
Partly Cloudy
Tue
H: 61°F
L: 37°F
Sunny
Wed
H: 60°F
L: 33°F
Sunny
Thu
H: 61°F
L: 32°F

Air Quality

PM2.5: 4.05 μg/m3
PM10: 4.55 μg/m3
Carbon Monoxide: 189.85 μg/m3
Nitrogen Dioxide: 4.25 μg/m3
Sulphur Dioxide: 1.05 μg/m3
Ozone: 89 μg/m3

Astronomical

Sunrise: 7:44 AM
Sun Transit: 12:18 AM
Sunset: 4:52 PM
Daylight: 9 hrs 8 mins
Moonrise: 1:30 AM
Moon Transit: 6:38 AM
Moonset: 11:37 AM
Moon Phase: Last Quarter
Moon Illumination: 35.3%

Best Times for Fishing or Hunting

Major Periods

6:08 AM - 8:38 AM
2:02 PM - 4:32 PM

Minor Periods

11:07 AM - 12:37 AM
1:00 AM - 2:30 AM

Action Rating: 3 out of 5

Air Stagnation Advisory issued January 10 at 1:25PM PST until January 11 at 10:00AM PST by NWS Portland OR

Effective: Sat January 10, 2026, 1:25 PM
Expires: Sun January 11, 2026, 10:00 AM

* WHAT...Light winds and limited air movement will lead to a period of stagnant air conditions. * WHERE...Central and Southern Willamette Valley, Tualatin Valley, Portland West Hills and Chehalem Mountain, Inner Portland Metro, North Clark County Lowlands, and Inner Vancouver Metro. * WHEN...Until 10 AM PST Sunday. * IMPACTS...Deteriorating air quality may cause issues for people with respiratory problems.

State air quality agencies highly recommend that no outdoor burning occur and that residential wood burning devices be limited as much as possible. According to state air quality agencies, prolonged periods of stagnant air can hold pollutants close to the ground where people live and breathe. Check with your local burn agency for any current restrictions in your area. People with respiratory illness should follow their physician's advice for dealing with high levels of air pollution during periods of stagnant air, especially if an Air Quality Alert is in effect for your area. To see if an Air Quality Alert is in effect for your area, go to www.weather.gov/pqr and left-click your location on the homepage map display. Alternatively, you could also type your location into the search bar found on the top-left hand side of the homepage. From there, you will see an Air Quality Alert listed at the top if one is in effect for your location; you can click the alert to read more details if applicable.


Beach Hazards Statement issued January 10 at 1:27PM PST until January 12 at 4:00PM PST by NWS Portland OR

Effective: Sat January 10, 2026, 1:27 PM
Expires: Mon January 12, 2026, 4:00 PM

* WHAT...Sneaker waves possible. * WHERE...North and Central Coast of Oregon, and South Washington Coast. * WHEN...Through Monday afternoon. * IMPACTS...Sneaker waves can run up significantly farther on a beach than normal, including over rocks, logs, and jetties. Sneaker waves can suddenly knock people off of their feet and quickly pull them into the frigid ocean which may lead to serious injury or drowning.

Remain out of the water to avoid hazardous swimming conditions.


Sunday, January 11, 2026

Weather Forecast

Partly Cloudy
55.6°F
33.3°F
46.3°F
50%
0 in
0%
0%
5.6 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 3.95 μg/m3
PM10: 4.68 μg/m3
Carbon Monoxide: 201.01 μg/m3
Nitrogen Dioxide: 3.91 μg/m3
Sulphur Dioxide: 1.27 μg/m3
Ozone: 88.48 μg/m3

Astronomical

Sunrise: 7:44 AM
Sun Transit: 12:18 AM
Sunset: 4:52 PM
Daylight: 9 hrs 8 mins
Moonrise: 1:30 AM
Moon Transit: 6:38 AM
Moonset: 11:37 AM
Moon Phase: Last Quarter
Moon Illumination: 35.3%

Best Times for Fishing or Hunting

Major Periods

6:08 AM - 8:38 AM
2:02 PM - 4:32 PM

Minor Periods

11:07 AM - 12:37 AM
1:00 AM - 2:30 AM

Action Rating: 3 out of 5

Monday, January 12, 2026

Weather Forecast

Partly Cloudy
57.6°F
37°F
43.9°F
50%
0 in
0%
0%
5.6 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 3.34 μg/m3
PM10: 3.9 μg/m3
Carbon Monoxide: 205.13 μg/m3
Nitrogen Dioxide: 4.01 μg/m3
Sulphur Dioxide: 1.22 μg/m3
Ozone: 82.04 μg/m3

Astronomical

Sunrise: 7:44 AM
Sun Transit: 12:18 AM
Sunset: 4:53 PM
Daylight: 9 hrs 9 mins
Moonrise: 2:36 AM
Moon Transit: 7:22 AM
Moonset: 12:00 AM
Moon Phase: Last Quarter
Moon Illumination: 25.0%

Best Times for Fishing or Hunting

Major Periods

6:52 AM - 9:22 AM
2:46 PM - 5:16 PM

Minor Periods

11:30 AM - 1:00 PM
2:06 AM - 3:36 AM

Action Rating: 3 out of 5

Tuesday, January 13, 2026

Weather Forecast

Partly Cloudy
61°F
37°F
44°F
55%
0 in
0%
0%
5.8 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 3.31 μg/m3
PM10: 3.67 μg/m3
Carbon Monoxide: 186.24 μg/m3
Nitrogen Dioxide: 5 μg/m3
Sulphur Dioxide: 1 μg/m3
Ozone: 66.84 μg/m3

Astronomical

Sunrise: 7:43 AM
Sun Transit: 12:18 AM
Sunset: 4:54 PM
Daylight: 9 hrs 11 mins
Moonrise: 3:42 AM
Moon Transit: 8:08 AM
Moonset: 12:29 AM
Moon Phase: Waning Crescent
Moon Illumination: 15.9%

Best Times for Fishing or Hunting

Major Periods

7:38 AM - 10:08 AM
3:33 PM - 6:03 PM

Minor Periods

11:59 AM - 1:29 PM
3:12 AM - 4:42 AM

Action Rating: 3 out of 5

Wednesday, January 14, 2026

Weather Forecast

Sunny
60.4°F
33.3°F
41.3°F
68%
0 in
0%
0%
5.6 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 4.93 μg/m3
PM10: 5.36 μg/m3
Carbon Monoxide: 166.73 μg/m3
Nitrogen Dioxide: 6.08 μg/m3
Sulphur Dioxide: 1.02 μg/m3
Ozone: 59.77 μg/m3

Astronomical

Sunrise: 7:43 AM
Sun Transit: 12:19 AM
Sunset: 4:56 PM
Daylight: 9 hrs 13 mins
Moonrise: 4:46 AM
Moon Transit: 8:57 AM
Moonset: 1:04 PM
Moon Phase: Waning Crescent
Moon Illumination: 8.5%

Best Times for Fishing or Hunting

Major Periods

8:27 AM - 10:57 AM
4:23 PM - 6:53 PM

Minor Periods

12:34 AM - 2:04 PM
4:16 AM - 5:46 AM

Action Rating: 2 out of 5

Thursday, January 15, 2026

Weather Forecast

Sunny
60.9°F
31.7°F
38.3°F
72%
0 in
0%
0%
6 mph
0


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:42 AM
Sun Transit: 12:19 AM
Sunset: 4:57 PM
Daylight: 9 hrs 14 mins
Moonrise: 5:46 AM
Moon Transit: 9:48 AM
Moonset: 1:49 PM
Moon Phase: Waning Crescent
Moon Illumination: 3.3%

Best Times for Fishing or Hunting

Major Periods

5:15 PM - 7:45 PM
9:18 AM - 11:48 AM

Minor Periods

1:19 PM - 2:49 PM
5:16 AM - 6:46 AM

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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