Water Temperature of the North Santiam River in Jefferson, OR

Current Water Temperature

49.3°F

Measurement Time: Wednesday, April 15, 2026, 10:00 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

51.1°F
Partly cloudy
Partly cloudy
46.4°F
46.1°F
56%
W 13.4 mph
21.5 mph
40.1°F
38.8°F
0.01 in
75%
9 mi
1016 mbar
1.3

Five Day Weather Forecast

Moderate rain
Wed
H: 50°F
L: 39°F
Patchy rain nearby
Thu
H: 52°F
L: 35°F
Cloudy
Fri
H: 58°F
L: 37°F
Partly Cloudy
Sat
H: 64°F
L: 38°F
Partly Cloudy
Sun
H: 65°F
L: 45°F

Air Quality

AQI: 1 - Good
PM2.5: 4.25 μg/m3
PM10: 5.95 μg/m3
Carbon Monoxide: 170.85 μg/m3
Nitrogen Dioxide: 3.45 μg/m3
Sulphur Dioxide: 1.35 μg/m3
Ozone: 75 μg/m3

Astronomical

Sunrise: 6:28 AM
Sun Transit: 1:11 PM
Sunset: 7:57 PM
Daylight: 13 hrs 30 mins
Moonrise: 5:26 AM
Moon Transit: 8:33 AM
Moonset: 6:14 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

8:03 AM - 10:33 AM
8:03 AM - 10:33 AM

Minor Periods

5:44 PM - 7:14 PM
4:56 AM - 6:26 AM

Action Rating: 3 out of 5

Frost Advisory issued April 15 at 12:39AM PDT until April 16 at 9:00AM PDT by NWS Portland OR

Effective: Wed April 15, 2026, 12:39 AM
Expires: Wed April 15, 2026, 2:00 PM

* WHAT...Temperatures as low as 33 to 36 degrees will result in frost formation. * WHERE...Central and Southern Willamette Valley, Northern and Central Coast Range Valleys and Mountains of Oregon, Tualatin Valley, Clackamas County Cascade Foothills, Cowlitz County Lowlands, North Clark County Lowlands, and South Washington Cascade Foothills. * WHEN...From 1 AM to 9 AM PDT Thursday. * 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 15 at 10:50AM PDT until April 16 at 9:00AM PDT by NWS Portland OR

Effective: Wed April 15, 2026, 10:50 AM
Expires: Thu April 16, 2026, 1:00 AM

* WHAT...Temperatures of 32 to 36 degrees will result in frost formation. * WHERE...Central and Southern Willamette Valley, Northern and Central Coast Range Valleys and Mountains of Oregon, Tualatin Valley, Clackamas County Cascade Foothills, Cowlitz County Lowlands, North Clark County Lowlands, and South Washington Cascade Foothills. * WHEN...From 1 AM to 9 AM PDT Thursday. * IMPACTS...Frost could harm sensitive outdoor vegetation.

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, or 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.


Winter Storm Warning issued April 15 at 12:39AM PDT until April 16 at 5:00AM PDT by NWS Portland OR

Effective: Wed April 15, 2026, 12:39 AM
Expires: Wed April 15, 2026, 2:00 PM

* WHAT...Heavy snow above 2500 ft. Total snow accumulations between 12 to 22 inches. Winds could gust as high as 45 mph. * WHERE...South Washington Cascades and the Northern and Central Cascades of Oregon. * WHEN...Until 5 AM PDT 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. Be aware that walking surfaces may be slick. Walk with extra care. Backcountry recreation is not advised.


Freeze Watch issued April 15 at 12:39AM PDT until April 16 at 9:00AM PDT by NWS Portland OR

Effective: Wed April 15, 2026, 12:39 AM
Expires: Wed April 15, 2026, 2:00 PM

* WHAT...Sub-freezing temperatures as low as 28 to 32 possible. * WHERE...Cascade Foothills of Marion and Linn Counties and Lane County Cascade Foothills. * WHEN...From late tonight through Thursday morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

To prevent water pipes from freezing; wrap or drain or allow them to drip slowly.


Freeze Watch issued April 15 at 10:50AM PDT until April 17 at 9:00AM PDT by NWS Portland OR

Effective: Wed April 15, 2026, 10:50 AM
Expires: Thu April 16, 2026, 1:00 AM

* WHAT...For the Frost Advisory, temperatures of 32 to 36 degrees will result in frost formation. For the Freeze Watch, sub-freezing temperatures as low as 30 degrees possible. * WHERE...Cascade Foothills of Marion and Linn Counties and Lane County Cascade Foothills. * WHEN...For the Frost Advisory, from 1 AM to 9 AM PDT Thursday. For the Freeze Watch, from 1 AM to 9 AM PDT Friday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

To prevent water pipes from freezing; wrap or drain or allow them to drip slowly. 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, or 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 15, 2026

Weather Forecast

Moderate rain
50.2°F
38.5°F
45.7°F
79%
0.68 in
89%
0%
17.4 mph
1


Air Quality

AQI: 1 - Good
PM2.5: 3.02 μg/m3
PM10: 3.93 μg/m3
Carbon Monoxide: 162.41 μg/m3
Nitrogen Dioxide: 1.91 μg/m3
Sulphur Dioxide: 1.16 μg/m3
Ozone: 83.4 μg/m3

Astronomical

Sunrise: 6:28 AM
Sun Transit: 1:11 PM
Sunset: 7:57 PM
Daylight: 13 hrs 30 mins
Moonrise: 5:26 AM
Moon Transit: 8:33 AM
Moonset: 6:14 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

8:03 AM - 10:33 AM
8:03 AM - 10:33 AM

Minor Periods

5:44 PM - 7:14 PM
4:56 AM - 6:26 AM

Action Rating: 3 out of 5

Thursday, April 16, 2026

Weather Forecast

Patchy rain nearby
51.6°F
34.9°F
43.8°F
78%
0.01 in
79%
0%
6 mph
1.2


Air Quality

AQI: 1 - Good
PM2.5: 4.69 μg/m3
PM10: 6.69 μg/m3
Carbon Monoxide: 164.53 μg/m3
Nitrogen Dioxide: 2.72 μg/m3
Sulphur Dioxide: 1.26 μg/m3
Ozone: 73.36 μg/m3

Astronomical

Sunrise: 6:26 AM
Sun Transit: 1:11 PM
Sunset: 7:59 PM
Daylight: 13 hrs 33 mins
Moonrise: 5:46 AM
Moon Transit: 12:31 AM
Moonset: 7:33 PM
Moon Phase: New
Moon Illumination: 0.8%

Best Times for Fishing or Hunting

Major Periods

7:54 PM - 10:24 PM
12:01 AM - 2:31 PM

Minor Periods

7:03 PM - 8:33 PM
5:16 AM - 6:46 AM

Action Rating: 5 out of 5

Friday, April 17, 2026

Weather Forecast

Cloudy
58.1°F
37.4°F
46.9°F
75%
0 in
0%
0%
7.2 mph
1.4


Air Quality

AQI: 1 - Good
PM2.5: 8.14 μg/m3
PM10: 11.3 μg/m3
Carbon Monoxide: 193.17 μg/m3
Nitrogen Dioxide: 6.31 μg/m3
Sulphur Dioxide: 1.54 μg/m3
Ozone: 64.48 μg/m3

Astronomical

Sunrise: 6:24 AM
Sun Transit: 1:11 PM
Sunset: 8:00 PM
Daylight: 13 hrs 36 mins
Moonrise: 6:10 AM
Moon Transit: 1:24 PM
Moonset: 8:56 PM
Moon Phase: New
Moon Illumination: 4.1%

Best Times for Fishing or Hunting

Major Periods

8:47 PM - 11:17 PM
12:54 AM - 3:24 PM

Minor Periods

8:26 PM - 9:56 PM
5:40 AM - 7:10 AM

Action Rating: 4 out of 5

Saturday, April 18, 2026

Weather Forecast

Partly Cloudy
64°F
37.6°F
50.4°F
78%
0 in
0%
0%
2.5 mph
1.5


Air Quality

AQI: 1 - Good
PM2.5: 8.04 μg/m3
PM10: 10.71 μg/m3
Carbon Monoxide: 234.67 μg/m3
Nitrogen Dioxide: 10.49 μg/m3
Sulphur Dioxide: 2.12 μg/m3
Ozone: 61.08 μg/m3

Astronomical

Sunrise: 6:22 AM
Sun Transit: 1:11 PM
Sunset: 8:01 PM
Daylight: 13 hrs 39 mins
Moonrise: 6:38 AM
Moon Transit: 2:21 PM
Moonset: 10:21 PM
Moon Phase: New
Moon Illumination: 1.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
1:51 PM - 4:21 PM

Minor Periods

9:51 PM - 11:21 PM
6:08 AM - 7:38 AM

Action Rating: 4 out of 5

Sunday, April 19, 2026

Weather Forecast

Partly Cloudy
65°F
44.9°F
53.9°F
81%
0 in
0%
0%
6.5 mph
1.1


Air Quality

AQI: 1 - Good
PM2.5: 5.2 μg/m3
PM10: 8.19 μg/m3
Carbon Monoxide: 209.14 μg/m3
Nitrogen Dioxide: 8.71 μg/m3
Sulphur Dioxide: 1.65 μg/m3
Ozone: 53.23 μg/m3

Astronomical

Sunrise: 6:21 AM
Sun Transit: 1:10 PM
Sunset: 8:02 PM
Daylight: 13 hrs 42 mins
Moonrise: 7:14 AM
Moon Transit: 3:22 PM
Moonset: 11:43 PM
Moon Phase: Waxing Crescent
Moon Illumination: 4.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:52 PM - 5:22 PM

Minor Periods

12:00 AM - 12:00 AM
6:44 AM - 8:14 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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