Water Temperature of the Tualatin River in Hillsboro, OR

Current Water Temperature

62.1°F

Measurement Time: Wednesday, July 15, 2026, 11:00 PM PDT

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

57°F
Moderate or heavy rain with thunder
Moderate or heavy rain with thunder
56.8°F
63.1°F
89%
S 4.3 mph
5.4 mph
63.1°F
54.9°F
0.02 in
100%
9 mi
1016 mbar
0.3

Five Day Weather Forecast

Sunny
Thu
H: 79°F
L: 58°F
Sunny
Fri
H: 85°F
L: 52°F
Sunny
Sat
H: 87°F
L: 54°F
Sunny
Sun
H: 93°F
L: 54°F
Sunny
Mon
H: 84°F
L: 56°F

Air Quality

AQI: 1 - Good
PM2.5: 9.3 μg/m3
PM10: 12.6 μg/m3
Carbon Monoxide: 105 μg/m3
Nitrogen Dioxide: 6.7 μg/m3
Sulphur Dioxide: 0.8 μg/m3
Ozone: 41 μg/m3

Astronomical

Sunrise: 5:39 AM
Sun Transit: 1:18 PM
Sunset: 8:57 PM
Daylight: 15 hrs 18 mins
Moonrise: 8:27 AM
Moon Transit: 3:37 PM
Moonset: 10:33 PM
Moon Phase: New
Moon Illumination: 2.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
3:07 PM - 5:37 PM

Minor Periods

10:03 PM - 11:33 PM
7:57 AM - 9:27 AM

Action Rating: 3 out of 5

Small Craft Advisory issued July 15 at 12:18PM PDT until July 16 at 10:00AM PDT by NWS Portland OR

Effective: Wed July 15, 2026, 12:18 PM
Expires: Thu July 16, 2026, 4:30 AM

* WHAT...Rough bar conditions expected due to very strong ebb. * WHERE...In the Main Channel of the Columbia River Bar. * WHEN...From 4 AM to 10 AM PDT Thursday. * IMPACTS...Conditions will be hazardous to small craft, especially when operating near to, or attempting to cross, the Columbia River Bar. * ADDITIONAL DETAILS...Ebb current of 4.08 kt at 630 PM Wednesday. Seas 3 to 4 ft. Very strong ebb current of 6.81 kt at 639 AM Thursday. Seas 6 to 7 ft.

A Small Craft Advisory means that wave conditions are expected to be hazardous to small craft in the vicinity of the Columbia River Bar. Mariners are advised to obtain the latest bar conditions from the United States Coast Guard before attempting to cross the bar.
Thursday, July 16, 2026

Weather Forecast

Sunny
78.8°F
57.6°F
68.8°F
55%
0.03 in
36%
0%
7.8 mph
5.7


Air Quality

AQI: 1 - Good
PM2.5: 8.18 μg/m3
PM10: 11.05 μg/m3
Carbon Monoxide: 101.63 μg/m3
Nitrogen Dioxide: 5.1 μg/m3
Sulphur Dioxide: 0.74 μg/m3
Ozone: 55.96 μg/m3

Astronomical

Sunrise: 5:39 AM
Sun Transit: 1:18 PM
Sunset: 8:57 PM
Daylight: 15 hrs 18 mins
Moonrise: 8:27 AM
Moon Transit: 3:37 PM
Moonset: 10:33 PM
Moon Phase: New
Moon Illumination: 2.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
3:07 PM - 5:37 PM

Minor Periods

10:03 PM - 11:33 PM
7:57 AM - 9:27 AM

Action Rating: 3 out of 5

Friday, July 17, 2026

Weather Forecast

Sunny
84.8°F
51.5°F
67.1°F
59%
0 in
3%
0%
10.5 mph
8.2


Air Quality

AQI: 1 - Good
PM2.5: 9.82 μg/m3
PM10: 12.67 μg/m3
Carbon Monoxide: 108.21 μg/m3
Nitrogen Dioxide: 8.15 μg/m3
Sulphur Dioxide: 0.66 μg/m3
Ozone: 56.38 μg/m3

Astronomical

Sunrise: 5:40 AM
Sun Transit: 1:18 PM
Sunset: 8:56 PM
Daylight: 15 hrs 16 mins
Moonrise: 9:45 AM
Moon Transit: 4:26 PM
Moonset: 10:52 PM
Moon Phase: Waxing Crescent
Moon Illumination: 7.0%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
3:56 PM - 6:26 PM

Minor Periods

10:22 PM - 11:52 PM
9:15 AM - 10:45 AM

Action Rating: 2 out of 5

Saturday, July 18, 2026

Weather Forecast

Sunny
87.2°F
53.5°F
69.4°F
54%
0 in
2%
0%
9.8 mph
8.1


Air Quality

AQI: 1 - Good
PM2.5: 6.06 μg/m3
PM10: 7.8 μg/m3
Carbon Monoxide: 98.04 μg/m3
Nitrogen Dioxide: 4.65 μg/m3
Sulphur Dioxide: 0.65 μg/m3
Ozone: 66.88 μg/m3

Astronomical

Sunrise: 5:41 AM
Sun Transit: 1:18 PM
Sunset: 8:55 PM
Daylight: 15 hrs 14 mins
Moonrise: 10:59 AM
Moon Transit: 5:11 PM
Moonset: 11:10 PM
Moon Phase: Waxing Crescent
Moon Illumination: 13.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
4:41 PM - 7:11 PM

Minor Periods

12:00 AM - 12:00 AM
10:29 AM - 11:59 AM

Action Rating: 2 out of 5

Sunday, July 19, 2026

Weather Forecast

Sunny
92.6°F
53.9°F
71.9°F
49%
0 in
1%
0%
8.9 mph
8.2


Air Quality

AQI: 1 - Good
PM2.5: 8.46 μg/m3
PM10: 10.98 μg/m3
Carbon Monoxide: 107.78 μg/m3
Nitrogen Dioxide: 4.91 μg/m3
Sulphur Dioxide: 0.83 μg/m3
Ozone: 70.75 μg/m3

Astronomical

Sunrise: 5:42 AM
Sun Transit: 1:18 PM
Sunset: 8:54 PM
Daylight: 15 hrs 13 mins
Moonrise: 12:10 AM
Moon Transit: 5:54 PM
Moonset: 12:10 AM
Moon Phase: Waxing Crescent
Moon Illumination: 22.6%

Best Times for Fishing or Hunting

Major Periods

12:31 AM - 3:01 AM
5:24 PM - 7:54 PM

Minor Periods

11:40 AM - 1:10 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Monday, July 20, 2026

Weather Forecast

Sunny
83.6°F
55.7°F
71°F
58%
0 in
17%
0%
4 mph
7


Air Quality

AQI: 1 - Good
PM2.5: 8.27 μg/m3
PM10: 10.67 μg/m3
Carbon Monoxide: 131.5 μg/m3
Nitrogen Dioxide: 9.52 μg/m3
Sulphur Dioxide: 0.72 μg/m3
Ozone: 39.17 μg/m3

Astronomical

Sunrise: 5:43 AM
Sun Transit: 1:18 PM
Sunset: 8:53 PM
Daylight: 15 hrs 11 mins
Moonrise: 1:19 PM
Moon Transit: 6:38 PM
Moonset: 12:28 AM
Moon Phase: Waxing Crescent
Moon Illumination: 32.7%

Best Times for Fishing or Hunting

Major Periods

1:14 AM - 3:44 AM
6:08 PM - 8:38 PM

Minor Periods

12:49 AM - 2:19 PM
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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