Water Temperature of the Santiam River in Jefferson, OR

Current Water Temperature

65.7°F

Measurement Time: Saturday, June 20, 2026, 8:30 AM PDT

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

72°F
Sunny
Sunny
75.7°F
75.9°F
46%
WNW 4 mph
4.6 mph
73.7°F
51.9°F
0 in
0%
9 mi
1017 mbar
5.3

Five Day Weather Forecast

Partly Cloudy
Sat
H: 75°F
L: 55°F
Sunny
Sun
H: 80°F
L: 43°F
Sunny
Mon
H: 88°F
L: 50°F
Sunny
Tue
H: 89°F
L: 53°F
Sunny
Wed
H: 85°F
L: 51°F

Air Quality

AQI: 1 - Good
PM2.5: 8.4 μg/m3
PM10: 12.7 μg/m3
Carbon Monoxide: 96 μg/m3
Nitrogen Dioxide: 0.3 μg/m3
Sulphur Dioxide: 0.6 μg/m3
Ozone: 74 μg/m3

Astronomical

Sunrise: 5:26 AM
Sun Transit: 1:13 PM
Sunset: 9:01 PM
Daylight: 15 hrs 35 mins
Moonrise: 12:06 AM
Moon Transit: 6:34 PM
Moonset: 12:30 AM
Moon Phase: Waxing Crescent
Moon Illumination: 27.8%

Best Times for Fishing or Hunting

Major Periods

1:09 AM - 3:39 AM
6:04 PM - 8:34 PM

Minor Periods

11:36 AM - 1:06 PM
12:00 AM - 1:30 AM

Action Rating: 3 out of 5

Extreme Heat Watch issued June 19 at 9:26PM PDT until June 23 at 11:00PM PDT by NWS Portland OR

Effective: Fri June 19, 2026, 9:26 PM
Expires: Sat June 20, 2026, 3:00 PM

* WHAT...Dangerously hot conditions with temperatures around 95 to 100 degrees F possible. * WHERE...Western and Central Columbia River Gorge, Portland Metro Lowlands, Inner Vancouver Metro, and East Clark County Lowlands. * WHEN...From Monday morning through Tuesday evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. * ADDITIONAL DETAILS...Warming trend on Monday and Tuesday with urban heat impacts possible. Overnight temperatures will be warmest on Monday night into Tuesday morning ranging from 63-65 degrees F. Tuesday into Wednesday will be similar in the most urban areas. Onshore flow will provide some potential relief Tuesday night.

Drink plenty of fluids, stay in a cool place during the heat of the day, stay out of the sunshine, and check up on relatives and neighbors. For those without air conditioning, use fans to keep air moving. Keeps windows closed during the day and open at night, unless air quality is degraded due to wildfire smoke. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes.


Heat Advisory issued June 20 at 11:25AM PDT until June 23 at 11:00PM PDT by NWS Portland OR

Effective: Sat June 20, 2026, 11:25 AM
Expires: Sat June 20, 2026, 11:30 PM

* WHAT...Temperatures up to 94 to 100 expected. * WHERE...Western and Central Columbia River Gorge, Portland Metro Lowlands, Inner Vancouver Metro, and East Clark County Lowlands. * WHEN...From 11 AM Monday to 11 PM PDT Tuesday. * IMPACTS...Hot temperatures may cause heat illnesses.

Drink plenty of fluids, stay in a cool place during the heat of the day, stay out of the sunshine, and check up on relatives and neighbors. For those without air conditioning, use fans to keep air moving. Keeps windows closed during the day and open at night, unless air quality is degraded due to wildfire smoke.
Saturday, June 20, 2026

Weather Forecast

Partly Cloudy
74.7°F
55.2°F
63.3°F
65%
0 in
9%
0%
10.3 mph
8.8


Air Quality

AQI: 1 - Good
PM2.5: 7.96 μg/m3
PM10: 12.04 μg/m3
Carbon Monoxide: 97.71 μg/m3
Nitrogen Dioxide: 1.01 μg/m3
Sulphur Dioxide: 0.59 μg/m3
Ozone: 63.21 μg/m3

Astronomical

Sunrise: 5:26 AM
Sun Transit: 1:13 PM
Sunset: 9:01 PM
Daylight: 15 hrs 35 mins
Moonrise: 12:06 AM
Moon Transit: 6:34 PM
Moonset: 12:30 AM
Moon Phase: Waxing Crescent
Moon Illumination: 27.8%

Best Times for Fishing or Hunting

Major Periods

1:09 AM - 3:39 AM
6:04 PM - 8:34 PM

Minor Periods

11:36 AM - 1:06 PM
12:00 AM - 1:30 AM

Action Rating: 3 out of 5

Sunday, June 21, 2026

Weather Forecast

Sunny
80.4°F
43.4°F
62°F
63%
0 in
4%
0%
8.3 mph
8.4


Air Quality

AQI: 1 - Good
PM2.5: 6.75 μg/m3
PM10: 9.65 μg/m3
Carbon Monoxide: 108.33 μg/m3
Nitrogen Dioxide: 2.33 μg/m3
Sulphur Dioxide: 0.59 μg/m3
Ozone: 64.17 μg/m3

Astronomical

Sunrise: 5:26 AM
Sun Transit: 1:14 PM
Sunset: 9:02 PM
Daylight: 15 hrs 35 mins
Moonrise: 1:16 PM
Moon Transit: 7:17 PM
Moonset: 12:49 AM
Moon Phase: First Quarter
Moon Illumination: 38.5%

Best Times for Fishing or Hunting

Major Periods

1:53 AM - 4:23 AM
6:47 PM - 9:17 PM

Minor Periods

12:46 AM - 2:16 PM
12:19 AM - 1:49 AM

Action Rating: 3 out of 5

Monday, June 22, 2026

Weather Forecast

Sunny
88.2°F
50.2°F
68.4°F
56%
0 in
2%
0%
9.4 mph
8.5


Air Quality

AQI: 1 - Good
PM2.5: 6.19 μg/m3
PM10: 7.94 μg/m3
Carbon Monoxide: 125.29 μg/m3
Nitrogen Dioxide: 3.21 μg/m3
Sulphur Dioxide: 0.62 μg/m3
Ozone: 79.71 μg/m3

Astronomical

Sunrise: 5:27 AM
Sun Transit: 1:14 PM
Sunset: 9:02 PM
Daylight: 15 hrs 35 mins
Moonrise: 2:24 PM
Moon Transit: 8:00 PM
Moonset: 1:07 AM
Moon Phase: First Quarter
Moon Illumination: 49.7%

Best Times for Fishing or Hunting

Major Periods

2:36 AM - 5:06 AM
7:30 PM - 10:00 PM

Minor Periods

1:54 PM - 3:24 PM
12:37 AM - 2:07 AM

Action Rating: 3 out of 5

Tuesday, June 23, 2026

Weather Forecast

Sunny
89.4°F
53.2°F
69.5°F
51%
0 in
2%
0%
11.2 mph
8


Air Quality

AQI: 1 - Good
PM2.5: 5.5 μg/m3
PM10: 6.28 μg/m3
Carbon Monoxide: 143.62 μg/m3
Nitrogen Dioxide: 3.28 μg/m3
Sulphur Dioxide: 0.7 μg/m3
Ozone: 90.25 μg/m3

Astronomical

Sunrise: 5:27 AM
Sun Transit: 1:14 PM
Sunset: 9:02 PM
Daylight: 15 hrs 35 mins
Moonrise: 3:30 PM
Moon Transit: 8:42 PM
Moonset: 1:25 AM
Moon Phase: First Quarter
Moon Illumination: 61.0%

Best Times for Fishing or Hunting

Major Periods

3:18 AM - 5:48 AM
8:12 PM - 10:42 PM

Minor Periods

3:00 PM - 4:30 PM
12:55 AM - 2:25 AM

Action Rating: 3 out of 5

Wednesday, June 24, 2026

Weather Forecast

Sunny
85°F
50.5°F
66°F
49%
0 in
2%
0%
11.9 mph
8


Air Quality

AQI: 1 - Good
PM2.5: 6.48 μg/m3
PM10: 9.1 μg/m3
Carbon Monoxide: 113.33 μg/m3
Nitrogen Dioxide: 4.62 μg/m3
Sulphur Dioxide: 0.3 μg/m3
Ozone: 46.17 μg/m3

Astronomical

Sunrise: 5:27 AM
Sun Transit: 1:14 PM
Sunset: 9:02 PM
Daylight: 15 hrs 35 mins
Moonrise: 4:38 PM
Moon Transit: 9:26 PM
Moonset: 1:45 AM
Moon Phase: First Quarter
Moon Illumination: 71.7%

Best Times for Fishing or Hunting

Major Periods

4:01 AM - 6:31 AM
8:56 PM - 11:26 PM

Minor Periods

4:08 PM - 5:38 PM
1:15 AM - 2:45 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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