Water Temperature of the North Santiam River in Jefferson, OR

Current Water Temperature

48.7°F

Measurement Time: Wednesday, April 8, 2026, 2:00 AM PDT

Temperature Locations

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North Santiam River

Station Name: NORTH SANTIAM R AT GREENS BRIDGE, NR JEFFERSON, OR
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 266 feet

Nearest Address:
35801 Jefferson-Scio Dr
Jefferson, OR 97352
Linn County

GPS Coordinates: 44.70789976, -122.9728698

Nearby Water Temperatures

Santiam River, Jefferson, OR (4.3 mi)
Willamette River , Albany, OR (8.1 mi)
North Santiam River, Mehama, OR (15.3 mi)
South Santiam River, Waterloo, OR (16.2 mi)
Little North Santiam River, Lyons, OR (20.2 mi)
South Santiam River, Sweet Home, OR (24.8 mi)
Middle Santiam River, Foster, OR (27.5 mi)
Quartzville Creek, Cascadia, OR (28.8 mi)
Long Tom River, Monroe, OR (31.6 mi)
Willamette River , Harrisburg, OR (31.8 mi)
South Santiam River, Cascadia, OR (32 mi)
Middle Santiam River, Cascadia, OR (32.4 mi)
North Santiam River, Niagara, OR (33.3 mi)
Detroit Lake, Detroit, OR (35.7 mi)
Willamette River, West Linn, OR (39.8 mi)

Weather for Jefferson, Oregon

Current Weather

48°F
Sunny
Sunny
48.3°F
47.7°F
71%
NNW 2.2 mph
6.7 mph
47°F
38.2°F
0 in
0%
9 mi
1019 mbar
1

Five Day Weather Forecast

Sunny
Wed
H: 71°F
L: 39°F
Patchy rain nearby
Thu
H: 74°F
L: 42°F
Moderate rain
Fri
H: 66°F
L: 51°F
Moderate rain
Sat
H: 58°F
L: 43°F
Patchy rain nearby
Sun
H: 53°F
L: 42°F

Air Quality

AQI: 1 - Good
PM2.5: 8.15 μg/m3
PM10: 11.65 μg/m3
Carbon Monoxide: 168.85 μg/m3
Nitrogen Dioxide: 1.55 μg/m3
Sulphur Dioxide: 2.05 μg/m3
Ozone: 100 μg/m3

Astronomical

Sunrise: 6:40 AM
Sun Transit: 1:13 PM
Sunset: 7:48 PM
Daylight: 13 hrs 9 mins
Moonrise: 2:09 AM
Moon Transit: 6:07 AM
Moonset: 10:07 AM
Moon Phase: Last Quarter
Moon Illumination: 53.2%

Best Times for Fishing or Hunting

Major Periods

5:37 AM - 8:07 AM
1:30 PM - 4:00 PM

Minor Periods

9:37 AM - 11:07 AM
1:39 AM - 3:09 AM

Action Rating: 2 out of 5

Frost Advisory issued April 7 at 9:21AM PDT until April 8 at 9:00AM PDT by NWS Portland OR

Effective: Tue April 7, 2026, 9:21 AM
Expires: Wed April 8, 2026, 9:00 AM

* WHAT...Temperatures as low as 34 to 36 degrees will result in frost formation. * WHERE...Central and Southern Willamette Valley, Tualatin Valley, and Inner Vancouver Metro. * WHEN...From 11 PM this evening to 9 AM PDT Wednesday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.

Take steps now to protect tender outdoor plants from the cold. Consider temporarily moving outdoor potted plants indoors if they are sensitive to cold temperatures. Consider temporarily covering sensitive plants with a lightweight cotton fabric (i.e., bedsheets, thin blankets), as this will help retain heat and provide frost protection for your plants.


Frost Advisory issued April 7 at 9:21AM PDT until April 8 at 9:00AM PDT by NWS Portland OR

Effective: Tue April 7, 2026, 9:21 AM
Expires: Wed April 8, 2026, 9:00 AM

* WHAT...Temperatures as low as 33 to 36 degrees will result in frost formation. * WHERE...Willapa Hills and Adjacent River Valleys of Pacific and Wahkiakum Counties, Lower Columbia River and Cowlitz River Valleys, North Oregon Coast Range Lowlands, North Oregon Coast Range, Upper Hood River Valley, North Clark County Lowlands, and South Washington Cascade Foothills. * WHEN...From 11 PM this evening to 9 AM PDT Wednesday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.

Take steps now to protect tender outdoor plants from the cold. Consider temporarily moving outdoor potted plants indoors if they are sensitive to cold temperatures. Consider temporarily covering sensitive plants with a lightweight cotton fabric (i.e., bedsheets, thin blankets), as this will help retain heat and provide frost protection for your plants.
Wednesday, April 8, 2026

Weather Forecast

Sunny
70.9°F
39.2°F
54.3°F
63%
0 in
0%
0%
2.9 mph
1.3


Air Quality

AQI: 1 - Good
PM2.5: 7.39 μg/m3
PM10: 9.53 μg/m3
Carbon Monoxide: 213.21 μg/m3
Nitrogen Dioxide: 8.07 μg/m3
Sulphur Dioxide: 1.98 μg/m3
Ozone: 55.76 μg/m3

Astronomical

Sunrise: 6:40 AM
Sun Transit: 1:13 PM
Sunset: 7:48 PM
Daylight: 13 hrs 9 mins
Moonrise: 2:09 AM
Moon Transit: 6:07 AM
Moonset: 10:07 AM
Moon Phase: Last Quarter
Moon Illumination: 53.2%

Best Times for Fishing or Hunting

Major Periods

5:37 AM - 8:07 AM
1:30 PM - 4:00 PM

Minor Periods

9:37 AM - 11:07 AM
1:39 AM - 3:09 AM

Action Rating: 2 out of 5

Thursday, April 9, 2026

Weather Forecast

Patchy rain nearby
73.9°F
41.5°F
56.9°F
78%
0.02 in
61%
0%
6.9 mph
1.3


Air Quality

AQI: 1 - Good
PM2.5: 8.34 μg/m3
PM10: 9.91 μg/m3
Carbon Monoxide: 235.25 μg/m3
Nitrogen Dioxide: 9.74 μg/m3
Sulphur Dioxide: 2.35 μg/m3
Ozone: 62.2 μg/m3

Astronomical

Sunrise: 6:38 AM
Sun Transit: 1:13 PM
Sunset: 7:50 PM
Daylight: 13 hrs 12 mins
Moonrise: 2:54 AM
Moon Transit: 6:58 AM
Moonset: 11:06 AM
Moon Phase: Last Quarter
Moon Illumination: 41.9%

Best Times for Fishing or Hunting

Major Periods

6:28 AM - 8:58 AM
2:20 PM - 4:50 PM

Minor Periods

10:36 AM - 12:06 AM
2:24 AM - 3:54 AM

Action Rating: 3 out of 5

Friday, April 10, 2026

Weather Forecast

Moderate rain
66.4°F
50.8°F
56.9°F
84%
0.23 in
87%
0%
6.3 mph
1.2


Air Quality

AQI: 1 - Good
PM2.5: 8.69 μg/m3
PM10: 10.18 μg/m3
Carbon Monoxide: 250.41 μg/m3
Nitrogen Dioxide: 9.36 μg/m3
Sulphur Dioxide: 2.2 μg/m3
Ozone: 62.92 μg/m3

Astronomical

Sunrise: 6:36 AM
Sun Transit: 1:13 PM
Sunset: 7:51 PM
Daylight: 13 hrs 15 mins
Moonrise: 3:31 AM
Moon Transit: 7:48 AM
Moonset: 12:12 AM
Moon Phase: Last Quarter
Moon Illumination: 31.0%

Best Times for Fishing or Hunting

Major Periods

7:18 AM - 9:48 AM
3:10 PM - 5:40 PM

Minor Periods

11:42 AM - 1:12 PM
3:01 AM - 4:31 AM

Action Rating: 2 out of 5

Saturday, April 11, 2026

Weather Forecast

Moderate rain
58.3°F
42.6°F
48.6°F
92%
0.54 in
88%
0%
12.8 mph
0.5


Air Quality

AQI: 1 - Good
PM2.5: 5.68 μg/m3
PM10: 7.67 μg/m3
Carbon Monoxide: 166.63 μg/m3
Nitrogen Dioxide: 2.81 μg/m3
Sulphur Dioxide: 1.62 μg/m3
Ozone: 79.44 μg/m3

Astronomical

Sunrise: 6:35 AM
Sun Transit: 1:12 PM
Sunset: 7:52 PM
Daylight: 13 hrs 18 mins
Moonrise: 4:01 AM
Moon Transit: 8:37 AM
Moonset: 1:21 PM
Moon Phase: Last Quarter
Moon Illumination: 21.1%

Best Times for Fishing or Hunting

Major Periods

8:07 AM - 10:37 AM
3:58 PM - 6:28 PM

Minor Periods

12:51 AM - 2:21 PM
3:31 AM - 5:01 AM

Action Rating: 2 out of 5

Sunday, April 12, 2026

Weather Forecast

Patchy rain nearby
53.2°F
41.7°F
46.5°F
86%
0.1 in
89%
0%
5.8 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 3.75 μg/m3
PM10: 5.19 μg/m3
Carbon Monoxide: 175.35 μg/m3
Nitrogen Dioxide: 2.86 μg/m3
Sulphur Dioxide: 1.31 μg/m3
Ozone: 71.54 μg/m3

Astronomical

Sunrise: 6:33 AM
Sun Transit: 1:12 PM
Sunset: 7:53 PM
Daylight: 13 hrs 21 mins
Moonrise: 4:26 AM
Moon Transit: 9:24 AM
Moonset: 2:33 PM
Moon Phase: Waning Crescent
Moon Illumination: 12.6%

Best Times for Fishing or Hunting

Major Periods

8:54 AM - 11:24 AM
4:45 PM - 7:15 PM

Minor Periods

2:03 PM - 3:33 PM
3:56 AM - 5:26 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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