Water Temperature of the Tualatin River in Hillsboro, OR

Current Water Temperature

42.4°F

Measurement Time: Wednesday, December 31, 2025, 3:00 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

46°F
Sunny
Sunny
46.1°F
51.1°F
53%
E 2.2 mph
6.7 mph
51°F
43.6°F
0 in
0%
9 mi
1017 mbar
0.7

Five Day Weather Forecast

Sunny
Wed
H: 53°F
L: 32°F
Patchy rain nearby
Thu
H: 44°F
L: 32°F
Moderate rain
Fri
H: 49°F
L: 41°F
Heavy rain
Sat
H: 49°F
L: 41°F
Patchy rain nearby
Sun
H: 47°F
L: 40°F

Air Quality

AQI: 1 - Good
PM2.5: 17.95 μg/m3
PM10: 18.45 μg/m3
Carbon Monoxide: 310.85 μg/m3
Nitrogen Dioxide: 40.45 μg/m3
Sulphur Dioxide: 4.85 μg/m3
Ozone: 6 μg/m3

Astronomical

Sunrise: 7:52 AM
Sun Transit: 12:15 AM
Sunset: 4:39 PM
Daylight: 8 hrs 47 mins
Moonrise: 1:40 PM
Moon Transit: 10:00 PM
Moonset: 5:10 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 90.5%

Best Times for Fishing or Hunting

Major Periods

4:23 AM - 6:53 AM
9:30 PM - 12:00 PM

Minor Periods

1:10 PM - 2:40 PM
4:40 AM - 6:10 AM

Action Rating: 2 out of 5

Wednesday, December 31, 2025

Weather Forecast

Sunny
53.4°F
32.2°F
38.6°F
81%
0 in
0%
0%
2 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 9.54 μg/m3
PM10: 9.81 μg/m3
Carbon Monoxide: 268.17 μg/m3
Nitrogen Dioxide: 28.73 μg/m3
Sulphur Dioxide: 3.52 μg/m3
Ozone: 23.12 μg/m3

Astronomical

Sunrise: 7:52 AM
Sun Transit: 12:15 AM
Sunset: 4:39 PM
Daylight: 8 hrs 47 mins
Moonrise: 1:40 PM
Moon Transit: 10:00 PM
Moonset: 5:10 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 90.5%

Best Times for Fishing or Hunting

Major Periods

4:23 AM - 6:53 AM
9:30 PM - 12:00 PM

Minor Periods

1:10 PM - 2:40 PM
4:40 AM - 6:10 AM

Action Rating: 2 out of 5

Thursday, January 1, 2026

Weather Forecast

Patchy rain nearby
43.5°F
31.8°F
38°F
94%
0.16 in
74%
0%
1.8 mph
0.1


Air Quality

AQI: 2 - Moderate
PM2.5: 16.65 μg/m3
PM10: 17.11 μg/m3
Carbon Monoxide: 386.33 μg/m3
Nitrogen Dioxide: 35.77 μg/m3
Sulphur Dioxide: 4.37 μg/m3
Ozone: 8.8 μg/m3

Astronomical

Sunrise: 7:52 AM
Sun Transit: 12:15 AM
Sunset: 4:40 PM
Daylight: 8 hrs 48 mins
Moonrise: 2:34 PM
Moon Transit: 11:07 PM
Moonset: 6:31 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 96.0%

Best Times for Fishing or Hunting

Major Periods

5:27 AM - 7:57 AM
12:00 AM - 12:00 AM

Minor Periods

2:04 PM - 3:34 PM
6:01 AM - 7:31 AM

Action Rating: 4 out of 5

Friday, January 2, 2026

Weather Forecast

Moderate rain
48.6°F
41°F
43.6°F
89%
0.42 in
88%
0%
4.3 mph
0.1


Air Quality

AQI: 2 - Moderate
PM2.5: 19.29 μg/m3
PM10: 19.66 μg/m3
Carbon Monoxide: 505.49 μg/m3
Nitrogen Dioxide: 31 μg/m3
Sulphur Dioxide: 4.27 μg/m3
Ozone: 10 μg/m3

Astronomical

Sunrise: 7:52 AM
Sun Transit: 12:16 AM
Sunset: 4:41 PM
Daylight: 8 hrs 49 mins
Moonrise: 3:42 PM
Moon Transit: 12:00 AM
Moonset: 7:41 AM
Moon Phase: Full
Moon Illumination: 99.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
6:34 AM - 9:04 AM

Minor Periods

3:12 PM - 4:42 PM
7:11 AM - 8:41 AM

Action Rating: 4 out of 5

Saturday, January 3, 2026

Weather Forecast

Heavy rain
48.8°F
41.3°F
44.9°F
89%
0.79 in
85%
0%
20.1 mph
0.1


Air Quality

AQI: 1 - Good
PM2.5: 5.9 μg/m3
PM10: 6.11 μg/m3
Carbon Monoxide: 204.65 μg/m3
Nitrogen Dioxide: 13.53 μg/m3
Sulphur Dioxide: 2.17 μg/m3
Ozone: 50.8 μg/m3

Astronomical

Sunrise: 7:52 AM
Sun Transit: 12:16 AM
Sunset: 4:42 PM
Daylight: 8 hrs 50 mins
Moonrise: 5:02 PM
Moon Transit: 12:13 AM
Moonset: 8:36 AM
Moon Phase: Full
Moon Illumination: 99.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
7:39 AM - 10:09 AM

Minor Periods

4:32 PM - 6:02 PM
8:06 AM - 9:36 AM

Action Rating: 6 out of 5

Sunday, January 4, 2026

Weather Forecast

Patchy rain nearby
47.1°F
40°F
45.2°F
88%
0.15 in
76%
0%
13.6 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 3.8 μg/m3
PM10: 4.43 μg/m3
Carbon Monoxide: 163.89 μg/m3
Nitrogen Dioxide: 10.8 μg/m3
Sulphur Dioxide: 2.08 μg/m3
Ozone: 59.62 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

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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