Water Temperature of the Tualatin River in Hillsboro, OR

Current Water Temperature

46.8°F

Measurement Time: Sunday, January 4, 2026, 6:00 AM 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

42.1°F
Partly cloudy
Partly cloudy
37.5°F
46.6°F
96%
SSW 7.2 mph
11.1 mph
41.7°F
43.3°F
0 in
75%
9 mi
1003 mbar
0

Five Day Weather Forecast

Patchy rain nearby
Sun
H: 51°F
L: 42°F
Patchy rain nearby
Mon
H: 46°F
L: 38°F
Heavy rain
Tue
H: 43°F
L: 39°F
Moderate rain
Wed
H: 42°F
L: 39°F
Patchy rain nearby
Thu
H: 47°F
L: 35°F

Air Quality

AQI: 1 - Good
PM2.5: 3.35 μg/m3
PM10: 3.85 μg/m3
Carbon Monoxide: 150.85 μg/m3
Nitrogen Dioxide: 8.15 μg/m3
Sulphur Dioxide: 1.95 μg/m3
Ozone: 58 μg/m3

Astronomical

Sunrise: 7:52 AM
Sun Transit: 12:17 AM
Sunset: 4:43 PM
Daylight: 8 hrs 51 mins
Moonrise: 6:25 PM
Moon Transit: 1:16 AM
Moonset: 9:15 AM
Moon Phase: Full
Moon Illumination: 98.1%

Best Times for Fishing or Hunting

Major Periods

12:46 AM - 3:16 AM
8:41 AM - 11:11 AM

Minor Periods

5:55 PM - 7:25 PM
8:45 AM - 10:15 AM

Action Rating: 3 out of 5

Winter Storm Watch issued January 4 at 12:29PM PST until January 8 at 4:00AM PST by NWS Portland OR

Effective: Sun January 4, 2026, 12:29 PM
Expires: Mon January 5, 2026, 6:00 AM

* WHAT...Heavy snow possible. Total snow accumulations up to one to two feet possible. Winds could gust as high as 40 mph. * WHERE...South Washington Cascades and the Northern and Central Cascades of Oregon. * WHEN...From late Monday night through late Wednesday night. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous.

Winterize your vehicle and have a winter emergency driving kit readily available. Make sure your emergency kit has the following items: flashlights, batteries, blankets, a shovel, water, non-perishable food items, tire chains, etc. Now is a good time to put snow tires on your vehicle. Check on friends and family to see if they need help preparing. Monitor the latest forecasts for updates on this situation. Persons should consider delaying all travel. If travel is absolutely necessary, drive with extreme caution.


Coastal Flood Advisory issued January 4 at 12:53AM PST until January 4 at 3:00PM PST by NWS Portland OR

Effective: Sun January 4, 2026, 12:53 AM
Expires: Sun January 4, 2026, 3:00 PM

* WHAT...Tidal overflow flooding expected. * WHERE...Clatsop and Tillamook Coast, and South Washington Coast. * WHEN...From 10 AM this morning to 3 PM PST this afternoon. * IMPACTS...Minor flooding, up to one foot above ground level, during high tides is expected in the low lying areas near bays, sloughs, and the lower reaches of the coastal rivers. * ADDITIONAL DETAILS...The tidal gauge at Toke Point has forecast tide of up to 12.1 feet this afternoon, while the tidal gauges at Tongue Point and Garibaldi have forecast tides up to 11.3 feet.

A Coastal Flood Advisory means that tidal overflow flooding is expected. Coastal residents in the warned area should be alert for rising water, and take appropriate action to protect life and property.


Sunday, January 4, 2026

Weather Forecast

Patchy rain nearby
51.1°F
41.5°F
46.1°F
87%
0.14 in
86%
0%
13.2 mph
0.1


Air Quality

AQI: 1 - Good
PM2.5: 3.73 μg/m3
PM10: 4.11 μg/m3
Carbon Monoxide: 199.49 μg/m3
Nitrogen Dioxide: 13.09 μg/m3
Sulphur Dioxide: 2.12 μg/m3
Ozone: 58.68 μg/m3

Astronomical

Sunrise: 7:52 AM
Sun Transit: 12:17 AM
Sunset: 4:43 PM
Daylight: 8 hrs 51 mins
Moonrise: 6:25 PM
Moon Transit: 1:16 AM
Moonset: 9:15 AM
Moon Phase: Full
Moon Illumination: 98.1%

Best Times for Fishing or Hunting

Major Periods

12:46 AM - 3:16 AM
8:41 AM - 11:11 AM

Minor Periods

5:55 PM - 7:25 PM
8:45 AM - 10:15 AM

Action Rating: 3 out of 5

Monday, January 5, 2026

Weather Forecast

Patchy rain nearby
46°F
37.6°F
41.7°F
92%
0.02 in
84%
0%
6.9 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 5.07 μg/m3
PM10: 5.8 μg/m3
Carbon Monoxide: 181.17 μg/m3
Nitrogen Dioxide: 13.76 μg/m3
Sulphur Dioxide: 2.65 μg/m3
Ozone: 53.24 μg/m3

Astronomical

Sunrise: 7:52 AM
Sun Transit: 12:17 AM
Sunset: 4:44 PM
Daylight: 8 hrs 52 mins
Moonrise: 7:45 PM
Moon Transit: 2:13 AM
Moonset: 9:45 AM
Moon Phase: Full
Moon Illumination: 93.7%

Best Times for Fishing or Hunting

Major Periods

1:43 AM - 4:13 AM
9:36 AM - 12:06 AM

Minor Periods

7:15 PM - 8:45 PM
9:15 AM - 10:45 AM

Action Rating: 3 out of 5

Tuesday, January 6, 2026

Weather Forecast

Heavy rain
43°F
39°F
40.9°F
95%
1.55 in
88%
0%
13.9 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 8.81 μg/m3
PM10: 9.47 μg/m3
Carbon Monoxide: 414.01 μg/m3
Nitrogen Dioxide: 29.32 μg/m3
Sulphur Dioxide: 3.14 μg/m3
Ozone: 31.36 μg/m3

Astronomical

Sunrise: 7:52 AM
Sun Transit: 12:17 AM
Sunset: 4:45 PM
Daylight: 8 hrs 53 mins
Moonrise: 9:02 PM
Moon Transit: 3:05 AM
Moonset: 10:08 AM
Moon Phase: Waning Gibbous
Moon Illumination: 87.1%

Best Times for Fishing or Hunting

Major Periods

2:35 AM - 5:05 AM
10:26 AM - 12:56 AM

Minor Periods

8:32 PM - 10:02 PM
9:38 AM - 11:08 AM

Action Rating: 2 out of 5

Wednesday, January 7, 2026

Weather Forecast

Moderate rain
42.3°F
39.4°F
41.1°F
91%
0.42 in
82%
0%
14.8 mph
0.1


Air Quality

AQI: 1 - Good
PM2.5: 5.37 μg/m3
PM10: 6.74 μg/m3
Carbon Monoxide: 170.65 μg/m3
Nitrogen Dioxide: 11.57 μg/m3
Sulphur Dioxide: 2.4 μg/m3
Ozone: 54.88 μg/m3

Astronomical

Sunrise: 7:51 AM
Sun Transit: 12:18 AM
Sunset: 4:46 PM
Daylight: 8 hrs 54 mins
Moonrise: 10:13 PM
Moon Transit: 3:51 AM
Moonset: 10:27 AM
Moon Phase: Waning Gibbous
Moon Illumination: 78.6%

Best Times for Fishing or Hunting

Major Periods

3:21 AM - 5:51 AM
11:12 AM - 1:42 PM

Minor Periods

9:43 PM - 11:13 PM
9:57 AM - 11:27 AM

Action Rating: 2 out of 5

Thursday, January 8, 2026

Weather Forecast

Patchy rain nearby
47°F
35.4°F
40.2°F
87%
0.03 in
89%
0%
11.6 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 5.42 μg/m3
PM10: 6.76 μg/m3
Carbon Monoxide: 192.44 μg/m3
Nitrogen Dioxide: 14.44 μg/m3
Sulphur Dioxide: 2.17 μg/m3
Ozone: 53.54 μg/m3

Astronomical

Sunrise: 7:51 AM
Sun Transit: 12:18 AM
Sunset: 4:47 PM
Daylight: 8 hrs 56 mins
Moonrise: 11:22 PM
Moon Transit: 4:35 AM
Moonset: 10:44 AM
Moon Phase: Waning Gibbous
Moon Illumination: 68.7%

Best Times for Fishing or Hunting

Major Periods

4:05 AM - 6:35 AM
11:54 AM - 2:24 PM

Minor Periods

12:00 AM - 12:00 AM
10:14 AM - 11:44 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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