Water Temperature of the Santiam River in Jefferson, OR

Current Water Temperature

45.0°F

Measurement Time: Tuesday, February 10, 2026, 3:30 AM PST

Temperature Locations

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Local Points of Interest

Santium River Rest Area

Santiam River

Station Name: SANTIAM RIVER NEAR JEFFERSON, OR
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 203 feet

Nearest Address:
14500–14566 I-5 N
Jefferson, OR 97352
Marion County

GPS Coordinates: 44.7387325, -123.0498164

Nearby Water Temperatures

North Santiam River, Jefferson, OR (4.3 mi)
Willamette River , Albany, OR (7.5 mi)
North Santiam River, Mehama, OR (18.5 mi)
South Santiam River, Waterloo, OR (20 mi)
Little North Santiam River, Lyons, OR (23.4 mi)
South Santiam River, Sweet Home, OR (28.7 mi)
Middle Santiam River, Foster, OR (31.7 mi)
Long Tom River, Monroe, OR (31.8 mi)
Willamette River , Harrisburg, OR (32.9 mi)
Quartzville Creek, Cascadia, OR (33.2 mi)
South Santiam River, Cascadia, OR (36.2 mi)
Middle Santiam River, Cascadia, OR (36.7 mi)
North Santiam River, Niagara, OR (36.9 mi)
Willamette River, West Linn, OR (38 mi)
Detroit Lake, Detroit, OR (39.5 mi)

Weather for Jefferson, Oregon

Current Weather

46.9°F
Partly cloudy
Partly cloudy
42.8°F
48.6°F
74%
N 8.5 mph
9.8 mph
44.4°F
43.5°F
0 in
50%
9 mi
1014 mbar
1.5

Five Day Weather Forecast

Sunny
Tue
H: 58°F
L: 39°F
Sunny
Wed
H: 57°F
L: 31°F
Mist
Thu
H: 49°F
L: 31°F
Patchy rain nearby
Fri
H: 51°F
L: 35°F
Moderate rain
Sat
H: 46°F
L: 42°F

Air Quality

AQI: 1 - Good
PM2.5: 4.45 μg/m3
PM10: 5.05 μg/m3
Carbon Monoxide: 209.85 μg/m3
Nitrogen Dioxide: 11.85 μg/m3
Sulphur Dioxide: 2.45 μg/m3
Ozone: 49 μg/m3

Astronomical

Sunrise: 7:19 AM
Sun Transit: 12:26 AM
Sunset: 5:34 PM
Daylight: 10 hrs 14 mins
Moonrise: 2:38 AM
Moon Transit: 6:51 AM
Moonset: 11:01 AM
Moon Phase: Last Quarter
Moon Illumination: 30.3%

Best Times for Fishing or Hunting

Major Periods

6:21 AM - 8:51 AM
2:13 PM - 4:43 PM

Minor Periods

10:31 AM - 12:01 AM
2:08 AM - 3:38 AM

Action Rating: 2 out of 5

Dense Fog Advisory issued February 10 at 1:05AM PST until February 10 at 9:00AM PST by NWS Portland OR

Effective: Tue February 10, 2026, 1:05 AM
Expires: Tue February 10, 2026, 9:00 AM

* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Central and Southern Willamette Valley, Lower Columbia River and Cowlitz River Valleys, Tualatin Valley, and North Clark County Lowlands. * WHEN...Until 9 AM PST this morning. * IMPACTS...Low visibility could make driving conditions hazardous. * ADDITIONAL DETAILS...Fog may not be uniformly dense across the region and drivers should expect rapid changes in visibility on roadways. Dense fog is most likely to occur in sheltered valleys and near waterways including lakes and rivers. Locales less sheltered from wind may instead see low overcast skies where only hilltops experience reduced visibility.

If driving, slow down and leave plenty of distance ahead of you. Pedestrians and cyclists should wear bright or reflective clothing to increase the chances of being seen by others in poor visibility conditions.


Beach Hazards Statement issued February 9 at 12:33PM PST until February 15 at 10:00PM PST by NWS Portland OR

Effective: Mon February 9, 2026, 12:33 PM
Expires: Wed February 11, 2026, 4:00 PM

* WHAT...Sneaker waves possible. * WHERE...North and Central Coast of Oregon, and South Washington Coast. * WHEN...From late Thursday night through Sunday evening. * IMPACTS...Waves can run up significantly farther on a beach than normal, including over rocks 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. * ADDITIONAL DETAILS...Caution should be used when in or near the water, especially those who will be razor clamming. Keep children and pets away from the surf zone. Keep off of jetties, rocks and logs near the surf zone. If you see someone swept into the sea do not swim in after them. Call 911 and keep an eye on them until help arrives.

Remain out of the water to avoid hazardous swimming conditions.
Tuesday, February 10, 2026

Weather Forecast

Sunny
57.9°F
38.8°F
45.5°F
87%
0 in
0%
0%
8.5 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 7.84 μg/m3
PM10: 8.92 μg/m3
Carbon Monoxide: 236.45 μg/m3
Nitrogen Dioxide: 15.21 μg/m3
Sulphur Dioxide: 2.53 μg/m3
Ozone: 38.32 μg/m3

Astronomical

Sunrise: 7:19 AM
Sun Transit: 12:26 AM
Sunset: 5:34 PM
Daylight: 10 hrs 14 mins
Moonrise: 2:38 AM
Moon Transit: 6:51 AM
Moonset: 11:01 AM
Moon Phase: Last Quarter
Moon Illumination: 30.3%

Best Times for Fishing or Hunting

Major Periods

6:21 AM - 8:51 AM
2:13 PM - 4:43 PM

Minor Periods

10:31 AM - 12:01 AM
2:08 AM - 3:38 AM

Action Rating: 2 out of 5

Wednesday, February 11, 2026

Weather Forecast

Sunny
57°F
30.7°F
41.1°F
85%
0 in
0%
0%
6 mph
0.4


Air Quality

AQI: 1 - Good
PM2.5: 5.44 μg/m3
PM10: 5.99 μg/m3
Carbon Monoxide: 203.89 μg/m3
Nitrogen Dioxide: 11.07 μg/m3
Sulphur Dioxide: 2.34 μg/m3
Ozone: 43.88 μg/m3

Astronomical

Sunrise: 7:18 AM
Sun Transit: 12:26 AM
Sunset: 5:35 PM
Daylight: 10 hrs 17 mins
Moonrise: 3:40 AM
Moon Transit: 7:42 AM
Moonset: 11:42 AM
Moon Phase: Last Quarter
Moon Illumination: 20.5%

Best Times for Fishing or Hunting

Major Periods

7:12 AM - 9:42 AM
3:04 PM - 5:34 PM

Minor Periods

11:12 AM - 12:42 AM
3:10 AM - 4:40 AM

Action Rating: 4 out of 5

Thursday, February 12, 2026

Weather Forecast

Mist
48.9°F
30.9°F
38.5°F
93%
0 in
0%
0%
3.4 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 8.84 μg/m3
PM10: 9.23 μg/m3
Carbon Monoxide: 280.17 μg/m3
Nitrogen Dioxide: 14.63 μg/m3
Sulphur Dioxide: 2.62 μg/m3
Ozone: 33.04 μg/m3

Astronomical

Sunrise: 7:16 AM
Sun Transit: 12:26 AM
Sunset: 5:37 PM
Daylight: 10 hrs 20 mins
Moonrise: 4:37 AM
Moon Transit: 8:34 AM
Moonset: 12:32 AM
Moon Phase: Waning Crescent
Moon Illumination: 12.2%

Best Times for Fishing or Hunting

Major Periods

8:04 AM - 10:34 AM
3:56 PM - 6:26 PM

Minor Periods

12:02 AM - 1:32 PM
4:07 AM - 5:37 AM

Action Rating: 2 out of 5

Friday, February 13, 2026

Weather Forecast

Patchy rain nearby
50.7°F
35.1°F
41.1°F
89%
0.09 in
69%
0%
8.5 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 8.3 μg/m3
PM10: 9.7 μg/m3
Carbon Monoxide: 193.76 μg/m3
Nitrogen Dioxide: 11.34 μg/m3
Sulphur Dioxide: 2.18 μg/m3
Ozone: 37.08 μg/m3

Astronomical

Sunrise: 7:15 AM
Sun Transit: 12:26 AM
Sunset: 5:38 PM
Daylight: 10 hrs 23 mins
Moonrise: 5:24 AM
Moon Transit: 9:26 AM
Moonset: 1:32 PM
Moon Phase: Waning Crescent
Moon Illumination: 5.8%

Best Times for Fishing or Hunting

Major Periods

8:56 AM - 11:26 AM
4:48 PM - 7:18 PM

Minor Periods

1:02 PM - 2:32 PM
4:54 AM - 6:24 AM

Action Rating: 2 out of 5

Saturday, February 14, 2026

Weather Forecast

Moderate rain
46.2°F
41.5°F
42.9°F
95%
0.35 in
88%
0%
6.9 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 9.97 μg/m3
PM10: 12.82 μg/m3
Carbon Monoxide: 241.47 μg/m3
Nitrogen Dioxide: 15.07 μg/m3
Sulphur Dioxide: 2.15 μg/m3
Ozone: 43.15 μg/m3

Astronomical

Sunrise: 7:14 AM
Sun Transit: 12:26 AM
Sunset: 5:39 PM
Daylight: 10 hrs 26 mins
Moonrise: 6:04 AM
Moon Transit: 10:18 AM
Moonset: 2:39 PM
Moon Phase: Waning Crescent
Moon Illumination: 1.7%

Best Times for Fishing or Hunting

Major Periods

5:40 PM - 8:10 PM
9:48 AM - 12:18 AM

Minor Periods

2:09 PM - 3:39 PM
5:34 AM - 7:04 AM

Action Rating: 4 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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