Water Temperature of the South Santiam River in Cascadia, OR

Current Water Temperature

43.5°F

Measurement Time: Wednesday, January 7, 2026, 5:20 AM 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°F
Heavy snow
Heavy snow
31.6°F
38.7°F
93%
SSW 12.1 mph
13.9 mph
32°F
38°F
0.1 in
25%
9 mi
1011 mbar
0.1

Five Day Weather Forecast

Heavy rain
Wed
H: 41°F
L: 33°F
Heavy rain
Thu
H: 40°F
L: 36°F
Cloudy
Fri
H: 48°F
L: 24°F
Partly Cloudy
Sat
H: 42°F
L: 23°F
Light freezing rain
Sun
H: 43°F
L: 22°F

Air Quality

AQI: 1 - Good
PM2.5: 1.35 μg/m3
PM10: 1.55 μg/m3
Carbon Monoxide: 160.85 μg/m3
Nitrogen Dioxide: 2.85 μg/m3
Sulphur Dioxide: 1.05 μg/m3
Ozone: 74 μg/m3

Astronomical

Sunrise: 7:45 AM
Sun Transit: 12:16 AM
Sunset: 4:48 PM
Daylight: 9 hrs 2 mins
Moonrise: 10:12 PM
Moon Transit: 3:49 AM
Moonset: 10:24 AM
Moon Phase: Waning Gibbous
Moon Illumination: 78.6%

Best Times for Fishing or Hunting

Major Periods

3:19 AM - 5:49 AM
11:14 AM - 1:44 PM

Minor Periods

9:42 PM - 11:12 PM
9:54 AM - 11:24 AM

Action Rating: 2 out of 5

Winter Storm Warning issued January 7 at 1:25AM PST until January 8 at 4:00PM PST by NWS Portland OR

Effective: Wed January 7, 2026, 1:25 AM
Expires: Wed January 7, 2026, 4:00 PM

* WHAT...Heavy snow. Additional snow accumulations between 1 and 2 feet, except up to 3 feet for elevations above 5000 feet. Winds gusting as high as 35 mph. * WHERE...South Washington Cascades and the Northern and Central Cascades of Oregon. * WHEN...Until 4 PM PST Thursday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous.

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.


High Surf Advisory issued January 7 at 1:27AM PST until January 8 at 4:00PM PST by NWS Portland OR

Effective: Wed January 7, 2026, 1:27 AM
Expires: Wed January 7, 2026, 4:00 PM

* WHAT...Large waves and hazardous surf conditions. Breakers up to 25 feet. * WHERE...North and Central Coast of Oregon, and South Washington Coast. * WHEN...From 10 AM this morning to 4 PM PST Thursday. * IMPACTS...Destructive waves may wash over beaches, jetties, and other structures unexpectedly. People can be swept off rocks and jetties and drown while observing high surf. Minor beach erosion may damage coastal properties and buildings. Higher than normal water run-up is expected on beaches and low- lying shoreline. * ADDITIONAL DETAILS...The largest waves are expected to occur between 4 PM Wednesday and 7 AM Thursday.

A High Surf Advisory means that high surf will affect beaches, producing rip currents, sneaker waves and beach erosion. Stay well back from the water's edge and be alert for exceptionally high waves. Keep away from large logs on the beach. Water running up on the beach can easily lift or roll logs which can injure or kill someone caught in their path.


Wednesday, January 7, 2026

Weather Forecast

Heavy rain
41.2°F
32.6°F
39.1°F
91%
1.75 in
88%
4%
12.1 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 1.9 μg/m3
PM10: 2.37 μg/m3
Carbon Monoxide: 145.09 μg/m3
Nitrogen Dioxide: 2.01 μg/m3
Sulphur Dioxide: 1.4 μg/m3
Ozone: 75.96 μg/m3

Astronomical

Sunrise: 7:45 AM
Sun Transit: 12:16 AM
Sunset: 4:48 PM
Daylight: 9 hrs 2 mins
Moonrise: 10:12 PM
Moon Transit: 3:49 AM
Moonset: 10:24 AM
Moon Phase: Waning Gibbous
Moon Illumination: 78.6%

Best Times for Fishing or Hunting

Major Periods

3:19 AM - 5:49 AM
11:14 AM - 1:44 PM

Minor Periods

9:42 PM - 11:12 PM
9:54 AM - 11:24 AM

Action Rating: 2 out of 5

Thursday, January 8, 2026

Weather Forecast

Heavy rain
39.7°F
35.8°F
37.5°F
98%
0.83 in
89%
0%
4.7 mph
0.1


Air Quality

AQI: 1 - Good
PM2.5: 1.48 μg/m3
PM10: 1.79 μg/m3
Carbon Monoxide: 152.01 μg/m3
Nitrogen Dioxide: 2.39 μg/m3
Sulphur Dioxide: 1.19 μg/m3
Ozone: 76.6 μg/m3

Astronomical

Sunrise: 7:45 AM
Sun Transit: 12:16 AM
Sunset: 4:49 PM
Daylight: 9 hrs 4 mins
Moonrise: 11:19 PM
Moon Transit: 4:33 AM
Moonset: 10:42 AM
Moon Phase: Waning Gibbous
Moon Illumination: 68.7%

Best Times for Fishing or Hunting

Major Periods

4:03 AM - 6:33 AM
11:56 AM - 2:26 PM

Minor Periods

12:00 AM - 12:00 AM
10:12 AM - 11:42 AM

Action Rating: 2 out of 5

Friday, January 9, 2026

Weather Forecast

Cloudy
47.7°F
23.6°F
35.8°F
84%
0 in
0%
0%
6.5 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 1.46 μg/m3
PM10: 1.7 μg/m3
Carbon Monoxide: 159.09 μg/m3
Nitrogen Dioxide: 3.05 μg/m3
Sulphur Dioxide: 1.23 μg/m3
Ozone: 71.72 μg/m3

Astronomical

Sunrise: 7:45 AM
Sun Transit: 12:17 AM
Sunset: 4:50 PM
Daylight: 9 hrs 5 mins
Moonrise: 12:19 AM
Moon Transit: 5:15 AM
Moonset: 11:00 AM
Moon Phase: Waning Gibbous
Moon Illumination: 57.8%

Best Times for Fishing or Hunting

Major Periods

4:45 AM - 7:15 AM
12:38 AM - 3:08 PM

Minor Periods

10:30 AM - 12:00 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Saturday, January 10, 2026

Weather Forecast

Partly Cloudy
41.9°F
22.7°F
29°F
95%
0 in
0%
0%
6.5 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 2.91 μg/m3
PM10: 3.57 μg/m3
Carbon Monoxide: 174.66 μg/m3
Nitrogen Dioxide: 4.67 μg/m3
Sulphur Dioxide: 1.33 μg/m3
Ozone: 88.08 μg/m3

Astronomical

Sunrise: 7:45 AM
Sun Transit: 12:17 AM
Sunset: 4:51 PM
Daylight: 9 hrs 6 mins
Moonrise: 12:25 AM
Moon Transit: 5:56 AM
Moonset: 11:17 AM
Moon Phase: Last Quarter
Moon Illumination: 46.5%

Best Times for Fishing or Hunting

Major Periods

5:26 AM - 7:56 AM
1:19 PM - 3:49 PM

Minor Periods

10:47 AM - 12:17 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Sunday, January 11, 2026

Weather Forecast

Light freezing rain
43.4°F
22.2°F
31.3°F
96%
0.01 in
80%
7%
5.8 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 3.62 μg/m3
PM10: 3.87 μg/m3
Carbon Monoxide: 225.83 μg/m3
Nitrogen Dioxide: 7.07 μg/m3
Sulphur Dioxide: 1.2 μg/m3
Ozone: 79.46 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

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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