Water Temperature of the Tualatin River in Hillsboro, OR

Current Water Temperature

40.1°F

Measurement Time: Tuesday, January 20, 2026, 9:00 PM PST

Temperature Locations

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Local Points of Interest

Jackson Bottom Wetlands; Jackson Slough

Tualatin River

Station Name: TUALATIN RIVER AT HWY 219 NEAR HILLSBORO, OR
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 135 feet

Nearest Address:
2600 SW Hillsboro Hwy
Hillsboro, OR 97123
Washington County

GPS Coordinates: 45.50011635, -122.9912157

Nearby Water Temperatures

Rock Creek, Hillsboro, OR (2.8 mi)
Gales Creek, Forest Grove, OR (6.1 mi)
Tualatin River, Dilley, OR (6.7 mi)
Beaverton Creek, Beaverton, OR (6.7 mi)
Wapato Creek, Gaston, OR (7.7 mi)
Tualatin River, Beaverton, OR (8.3 mi)
Scoggins Creek, Gaston, OR (8.5 mi)
Fanno Creek, Beaverton, OR (10.1 mi)
Scoggins Creek, Gaston, OR (10.3 mi)
Chicken Creek, Sherwood, OR (10.8 mi)
Fanno Creek, Tigard, OR (13.3 mi)
East Fork Dairy Creek, Meacham Corner, OR (13.9 mi)
Willamette River, West Linn, OR (15 mi)
Willamette River, Portland, OR (15.6 mi)
Crystal Springs Creek, Portland, OR (17 mi)

Weather for Hillsboro, Oregon

Current Weather

23.4°F
Clear
Clear
20.9°F
29.2°F
100%
N 2.2 mph
3.3 mph
22.8°F
23.3°F
0 in
0%
9 mi
1024 mbar
0

Five Day Weather Forecast

Sunny
Wed
H: 49°F
L: 28°F
Partly Cloudy
Thu
H: 40°F
L: 28°F
Sunny
Fri
H: 46°F
L: 28°F
Sunny
Sat
H: 47°F
L: 28°F
Overcast
Sun
H: 44°F
L: 29°F

Air Quality

AQI: 1 - Good
PM2.5: 5.75 μg/m3
PM10: 5.95 μg/m3
Carbon Monoxide: 294.85 μg/m3
Nitrogen Dioxide: 13.15 μg/m3
Sulphur Dioxide: 2.95 μg/m3
Ozone: 59 μg/m3

Astronomical

Sunrise: 7:44 AM
Sun Transit: 12:23 AM
Sunset: 5:03 PM
Daylight: 9 hrs 20 mins
Moonrise: 9:19 AM
Moon Transit: 2:47 PM
Moonset: 8:29 PM
Moon Phase: Waxing Crescent
Moon Illumination: 8.1%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:17 PM - 4:47 PM

Minor Periods

7:59 PM - 9:29 PM
8:49 AM - 10:19 AM

Action Rating: 3 out of 5

Air Stagnation Advisory issued January 20 at 1:29PM PST until January 23 at 12:00PM PST by NWS Portland OR

Effective: Tue January 20, 2026, 1:29 PM
Expires: Wed January 21, 2026, 4:00 PM

* WHAT...Light winds and limited air movement will lead to a period of stagnant air conditions. * WHERE...Central and Southern Willamette Valley, and Tualatin Valley. * WHEN...Until noon PST Friday. * IMPACTS...Deteriorating air quality may cause issues for people with respiratory problems.

State air quality agencies highly recommend that no outdoor burning occur and that residential wood burning devices be limited as much as possible. According to state air quality agencies, prolonged periods of stagnant air can hold pollutants close to the ground where people live and breathe. Check with your local burn agency for any current restrictions in your area. People with respiratory illness should follow their physician's advice for dealing with high levels of air pollution during periods of stagnant air, especially if an Air Quality Alert is in effect for your area. To see if an Air Quality Alert is in effect for your area, go to www.weather.gov/pqr and left-click your location on the homepage map display. Alternatively, you could also type your location into the search bar found on the top-left hand side of the homepage. From there, you will see an Air Quality Alert listed at the top if one is in effect for your location; you can click the alert to read more details if applicable.


Wednesday, January 21, 2026

Weather Forecast

Sunny
49.3°F
27.7°F
36.3°F
73%
0 in
0%
0%
2 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 8.46 μg/m3
PM10: 8.61 μg/m3
Carbon Monoxide: 276.25 μg/m3
Nitrogen Dioxide: 20.51 μg/m3
Sulphur Dioxide: 2.57 μg/m3
Ozone: 46.2 μg/m3

Astronomical

Sunrise: 7:44 AM
Sun Transit: 12:23 AM
Sunset: 5:03 PM
Daylight: 9 hrs 20 mins
Moonrise: 9:19 AM
Moon Transit: 2:47 PM
Moonset: 8:29 PM
Moon Phase: Waxing Crescent
Moon Illumination: 8.1%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:17 PM - 4:47 PM

Minor Periods

7:59 PM - 9:29 PM
8:49 AM - 10:19 AM

Action Rating: 3 out of 5

Thursday, January 22, 2026

Weather Forecast

Partly Cloudy
40.3°F
28.4°F
33.6°F
72%
0 in
0%
0%
2.2 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 10.58 μg/m3
PM10: 10.71 μg/m3
Carbon Monoxide: 435.25 μg/m3
Nitrogen Dioxide: 25.37 μg/m3
Sulphur Dioxide: 3 μg/m3
Ozone: 36.8 μg/m3

Astronomical

Sunrise: 7:43 AM
Sun Transit: 12:23 AM
Sunset: 5:05 PM
Daylight: 9 hrs 22 mins
Moonrise: 9:37 AM
Moon Transit: 3:32 PM
Moonset: 9:41 PM
Moon Phase: Waxing Crescent
Moon Illumination: 15.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
3:02 PM - 5:32 PM

Minor Periods

9:11 PM - 10:41 PM
9:07 AM - 10:37 AM

Action Rating: 3 out of 5

Friday, January 23, 2026

Weather Forecast

Sunny
45.9°F
27.9°F
35.1°F
75%
0 in
0%
0%
5.4 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 12.75 μg/m3
PM10: 13.06 μg/m3
Carbon Monoxide: 344.89 μg/m3
Nitrogen Dioxide: 28.02 μg/m3
Sulphur Dioxide: 2.82 μg/m3
Ozone: 37.96 μg/m3

Astronomical

Sunrise: 7:42 AM
Sun Transit: 12:23 AM
Sunset: 5:06 PM
Daylight: 9 hrs 24 mins
Moonrise: 9:55 AM
Moon Transit: 6:54 AM
Moonset: 10:55 PM
Moon Phase: Waxing Crescent
Moon Illumination: 24.4%

Best Times for Fishing or Hunting

Major Periods

6:24 AM - 8:54 AM
6:24 AM - 8:54 AM

Minor Periods

10:25 PM - 11:55 PM
9:25 AM - 10:55 AM

Action Rating: 2 out of 5

Saturday, January 24, 2026

Weather Forecast

Sunny
47.3°F
27.7°F
34.3°F
63%
0 in
0%
0%
4 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 8.21 μg/m3
PM10: 8.5 μg/m3
Carbon Monoxide: 283.47 μg/m3
Nitrogen Dioxide: 16.79 μg/m3
Sulphur Dioxide: 2.63 μg/m3
Ozone: 57.2 μg/m3

Astronomical

Sunrise: 7:41 AM
Sun Transit: 12:24 AM
Sunset: 5:07 PM
Daylight: 9 hrs 26 mins
Moonrise: 10:13 AM
Moon Transit: 5:03 PM
Moonset: 12:11 PM
Moon Phase: First Quarter
Moon Illumination: 34.7%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
4:33 PM - 7:03 PM

Minor Periods

12:00 AM - 12:00 AM
9:43 AM - 11:13 AM

Action Rating: 2 out of 5

Sunday, January 25, 2026

Weather Forecast

Overcast
43.6°F
29.2°F
35°F
62%
0 in
0%
0%
2 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 12.47 μg/m3
PM10: 13.35 μg/m3
Carbon Monoxide: 344.2 μg/m3
Nitrogen Dioxide: 37.98 μg/m3
Sulphur Dioxide: 3.21 μg/m3
Ozone: 33.46 μg/m3

Astronomical

Sunrise: 7:40 AM
Sun Transit: 12:24 AM
Sunset: 5:09 PM
Daylight: 9 hrs 29 mins
Moonrise: 10:35 AM
Moon Transit: 5:53 PM
Moonset: 12:11 AM
Moon Phase: First Quarter
Moon Illumination: 45.8%

Best Times for Fishing or Hunting

Major Periods

12:25 AM - 2:55 AM
5:23 PM - 7:53 PM

Minor Periods

10:05 AM - 11:35 AM
12:00 AM - 12:00 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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