Water Temperature of the Santiam River in Jefferson, OR
Current Water Temperature
Measurement Time: Monday, July 20, 2026, 10:30 PM PDT
Temperature Locations
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Local Points of Interest
Santium River Rest AreaStation 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

Five Day Weather Forecast

Tue
H: 102°F
L: 64°F

Wed
H: 97°F
L: 60°F

Thu
H: 92°F
L: 58°F

Fri
H: 85°F
L: 51°F

Sat
H: 83°F
L: 50°F
Air Quality
Nitrogen Dioxide: 8.7 μg/m3
Sulphur Dioxide: 0.7 μg/m3
Ozone: 31 μg/m3
Astronomical
Sun Transit: 1:18 PM
Sunset: 8:50 PM
Daylight: 15 hrs 4 mins
Moon Transit: 7:22 PM
Moonset: 12:49 AM
Moon Phase: First Quarter
Moon Illumination: 43.7%
Best Times for Fishing or Hunting
Major Periods
1:58 AM - 4:28 AM6:52 PM - 9:22 PM
Minor Periods
1:57 PM - 3:27 PM12:00 AM - 12:00 AM
Action Rating: 2 out of 5
Heat Advisory issued July 20 at 9:01PM PDT until July 22 at 11:00PM PDT by NWS Portland OR
Effective: Mon July 20, 2026, 9:01 PM
Expires: Tue July 21, 2026, 11:00 AM
* WHAT...Temperatures as high as 95 to 100 expected. * WHERE...Portland Metro Hills, and West Central Willamette Valley. * WHEN...From 10 AM Tuesday to 11 PM PDT Wednesday. * IMPACTS...Hot temperatures may cause heat illnesses. * ADDITIONAL DETAILS...Smoke from fires outside of the region or clouds moving into the area could result in cooler daytime high temperatures than currently forecast.
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. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes.
Weather Forecast
Air Quality
Nitrogen Dioxide: 4.63 μg/m3
Sulphur Dioxide: 0.83 μg/m3
Ozone: 76.21 μg/m3
Astronomical
Sun Transit: 1:18 PM
Sunset: 8:50 PM
Daylight: 15 hrs 4 mins
Moon Transit: 7:22 PM
Moonset: 12:49 AM
Moon Phase: First Quarter
Moon Illumination: 43.7%
Best Times for Fishing or Hunting
Major Periods
1:58 AM - 4:28 AM6:52 PM - 9:22 PM
Minor Periods
1:57 PM - 3:27 PM12:00 AM - 12:00 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 3.96 μg/m3
Sulphur Dioxide: 0.73 μg/m3
Ozone: 73.33 μg/m3
Astronomical
Sun Transit: 1:18 PM
Sunset: 8:49 PM
Daylight: 15 hrs 2 mins
Moon Transit: 8:08 PM
Moonset: 12:11 AM
Moon Phase: First Quarter
Moon Illumination: 55.0%
Best Times for Fishing or Hunting
Major Periods
2:42 AM - 5:12 AM7:38 PM - 10:08 PM
Minor Periods
3:04 PM - 4:34 PM12:00 AM - 12:00 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 1.69 μg/m3
Sulphur Dioxide: 0.68 μg/m3
Ozone: 56.08 μg/m3
Astronomical
Sun Transit: 1:18 PM
Sunset: 8:48 PM
Daylight: 15 hrs mins
Moon Transit: 8:56 PM
Moonset: 12:37 AM
Moon Phase: First Quarter
Moon Illumination: 66.1%
Best Times for Fishing or Hunting
Major Periods
3:30 AM - 6:00 AM8:26 PM - 10:56 PM
Minor Periods
4:10 PM - 5:40 PM12:07 AM - 1:37 AM
Action Rating: 4 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 1.98 μg/m3
Sulphur Dioxide: 0.74 μg/m3
Ozone: 40.75 μg/m3
Astronomical
Sun Transit: 1:18 PM
Sunset: 8:47 PM
Daylight: 14 hrs 58 mins
Moon Transit: 9:46 PM
Moonset: 1:09 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 76.3%
Best Times for Fishing or Hunting
Major Periods
4:18 AM - 6:48 AM9:16 PM - 11:46 PM
Minor Periods
5:12 PM - 6:42 PM12:39 AM - 2:09 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 3.3 μg/m3
Sulphur Dioxide: 1.28 μg/m3
Ozone: 44.33 μg/m3
Astronomical
Sun Transit: 1:18 PM
Sunset: 8:46 PM
Daylight: 14 hrs 55 mins
Moon Transit: 10:38 PM
Moonset: 1:49 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 85.2%
Best Times for Fishing or Hunting
Major Periods
5:08 AM - 7:38 AM12:00 AM - 12:00 AM
Minor Periods
6:09 PM - 7:39 PM1:19 AM - 2:49 AM
Action Rating: 2 out of 5
