Water Temperature of the Tualatin River in Hillsboro, OR

Current Water Temperature

49.5°F

Measurement Time: Tuesday, March 31, 2026, 11:00 AM 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

54°F
Overcast
Overcast
54.8°F
48.9°F
57%
SSE 2.2 mph
3.3 mph
46.4°F
36.7°F
0 in
100%
9 mi
1007 mbar
0

Five Day Weather Forecast

Sunny
Tue
H: 62°F
L: 38°F
Moderate rain
Wed
H: 53°F
L: 38°F
Moderate rain
Thu
H: 51°F
L: 38°F
Sunny
Fri
H: 58°F
L: 35°F
Sunny
Sat
H: 67°F
L: 39°F

Air Quality

AQI: 1 - Good
PM2.5: 6.35 μg/m3
PM10: 8.35 μg/m3
Carbon Monoxide: 164.85 μg/m3
Nitrogen Dioxide: 4.25 μg/m3
Sulphur Dioxide: 1.95 μg/m3
Ozone: 85 μg/m3

Astronomical

Sunrise: 6:54 AM
Sun Transit: 1:16 PM
Sunset: 7:39 PM
Daylight: 12 hrs 45 mins
Moonrise: 6:36 PM
Moon Transit: 12:00 AM
Moonset: 6:14 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
7:16 AM - 9:46 AM

Minor Periods

6:06 PM - 7:36 PM
5:44 AM - 7:14 AM

Action Rating: 5 out of 5

Winter Weather Advisory issued March 31 at 9:59AM PDT until April 2 at 5:00PM PDT by NWS Portland OR

Effective: Tue March 31, 2026, 9:59 AM
Expires: Wed April 1, 2026, 2:00 AM

* WHAT...Snow expected above 3000 feet. Total snow accumulations between 5 to 10 inches. Winds gusting as high as 40 mph. * WHERE...North Oregon Cascades. * WHEN...From 5 AM Wednesday to 5 PM PDT Thursday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous.

Have a winter emergency driving kit readily available. Common items to include: flashlight, batteries, blankets, a shovel, water, non-perishable food items, tire chains, etc. Be aware that walking surfaces may be slick. Walk with extra care. For the latest road conditions and chain restrictions in Oregon, call 5 1 1, or visit: www.tripcheck.com. For the latest road conditions and chain restrictions in Washington, visit: wsdot.com/travel/real-time/map


Winter Weather Advisory issued March 31 at 2:59PM PDT until April 2 at 5:00PM PDT by NWS Portland OR

Effective: Tue March 31, 2026, 2:59 PM
Expires: Wed April 1, 2026, 2:00 AM

* WHAT...Snow expected above 3000 feet. Total snow accumulations between 5 to 11 inches. Winds gusting as high as 40 mph. * WHERE...In Oregon, North Oregon Cascades. In Washington, South Washington Cascades. * WHEN...From 5 AM Wednesday to 5 PM PDT Thursday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous.

Have a winter emergency driving kit readily available. Common items to include: flashlight, batteries, blankets, a shovel, water, non-perishable food items, tire chains, etc. Be aware that walking surfaces may be slick. Walk with extra care. For the latest road conditions and chain restrictions in Oregon, call 5 1 1, or visit: www.tripcheck.com. For the latest road conditions and chain restrictions in Washington, visit: wsdot.com/travel/real-time/map


Winter Weather Advisory issued March 31 at 9:59AM PDT until April 2 at 5:00PM PDT by NWS Portland OR

Effective: Tue March 31, 2026, 9:59 AM
Expires: Wed April 1, 2026, 2:00 AM

* WHAT...Snow expected above 3000 feet. Total snow accumulations between 6 to 11 inches. Winds gusting as high as 35 mph. * WHERE...South Washington Cascades. * WHEN...From 5 AM Wednesday to 5 PM PDT Thursday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous.

Have a winter emergency driving kit readily available. Common items to include: flashlight, batteries, blankets, a shovel, water, non-perishable food items, tire chains, etc. Be aware that walking surfaces may be slick. Walk with extra care. For the latest road conditions and chain restrictions in Oregon, call 5 1 1, or visit: www.tripcheck.com. For the latest road conditions and chain restrictions in Washington, visit: wsdot.com/travel/real-time/map
Tuesday, March 31, 2026

Weather Forecast

Sunny
61.9°F
37.6°F
47.7°F
61%
0 in
0%
0%
4.5 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 6.19 μg/m3
PM10: 7.25 μg/m3
Carbon Monoxide: 206.65 μg/m3
Nitrogen Dioxide: 15.73 μg/m3
Sulphur Dioxide: 2.6 μg/m3
Ozone: 58.92 μg/m3

Astronomical

Sunrise: 6:54 AM
Sun Transit: 1:16 PM
Sunset: 7:39 PM
Daylight: 12 hrs 45 mins
Moonrise: 6:36 PM
Moon Transit: 12:00 AM
Moonset: 6:14 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
7:16 AM - 9:46 AM

Minor Periods

6:06 PM - 7:36 PM
5:44 AM - 7:14 AM

Action Rating: 5 out of 5

Wednesday, April 1, 2026

Weather Forecast

Moderate rain
53.4°F
38.4°F
45.6°F
86%
0.42 in
88%
0%
12.5 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 6.44 μg/m3
PM10: 7.59 μg/m3
Carbon Monoxide: 201.57 μg/m3
Nitrogen Dioxide: 11.38 μg/m3
Sulphur Dioxide: 2.33 μg/m3
Ozone: 66.32 μg/m3

Astronomical

Sunrise: 6:52 AM
Sun Transit: 1:15 PM
Sunset: 7:40 PM
Daylight: 12 hrs 48 mins
Moonrise: 7:44 PM
Moon Transit: 12:39 AM
Moonset: 6:31 AM
Moon Phase: Full
Moon Illumination: 99.8%

Best Times for Fishing or Hunting

Major Periods

12:09 AM - 2:39 AM
7:58 AM - 10:28 AM

Minor Periods

7:14 PM - 8:44 PM
6:01 AM - 7:31 AM

Action Rating: 4 out of 5

Thursday, April 2, 2026

Weather Forecast

Moderate rain
51.4°F
38.1°F
43.4°F
83%
0.68 in
89%
0%
9.2 mph
0.8


Air Quality

AQI: 1 - Good
PM2.5: 3.39 μg/m3
PM10: 4.24 μg/m3
Carbon Monoxide: 177.09 μg/m3
Nitrogen Dioxide: 6.16 μg/m3
Sulphur Dioxide: 1.83 μg/m3
Ozone: 72.6 μg/m3

Astronomical

Sunrise: 6:50 AM
Sun Transit: 1:15 PM
Sunset: 7:42 PM
Daylight: 12 hrs 51 mins
Moonrise: 8:53 PM
Moon Transit: 1:21 AM
Moonset: 6:48 AM
Moon Phase: Full
Moon Illumination: 99.5%

Best Times for Fishing or Hunting

Major Periods

12:51 AM - 3:21 AM
8:41 AM - 11:11 AM

Minor Periods

8:23 PM - 9:53 PM
6:18 AM - 7:48 AM

Action Rating: 3 out of 5

Friday, April 3, 2026

Weather Forecast

Sunny
58.3°F
35.4°F
45.8°F
75%
0 in
0%
0%
4.3 mph
1.2


Air Quality

AQI: 1 - Good
PM2.5: 9.98 μg/m3
PM10: 12.04 μg/m3
Carbon Monoxide: 225.99 μg/m3
Nitrogen Dioxide: 20.43 μg/m3
Sulphur Dioxide: 2.77 μg/m3
Ozone: 49.04 μg/m3

Astronomical

Sunrise: 6:48 AM
Sun Transit: 1:15 PM
Sunset: 7:43 PM
Daylight: 12 hrs 55 mins
Moonrise: 10:02 PM
Moon Transit: 2:04 AM
Moonset: 7:06 AM
Moon Phase: Full
Moon Illumination: 96.6%

Best Times for Fishing or Hunting

Major Periods

1:34 AM - 4:04 AM
9:24 AM - 11:54 AM

Minor Periods

9:32 PM - 11:02 PM
6:36 AM - 8:06 AM

Action Rating: 4 out of 5

Saturday, April 4, 2026

Weather Forecast

Sunny
67.2°F
38.6°F
51.6°F
69%
0 in
0%
0%
5.1 mph
1.2


Air Quality

AQI: 1 - Good
PM2.5: 8.69 μg/m3
PM10: 10.55 μg/m3
Carbon Monoxide: 245.77 μg/m3
Nitrogen Dioxide: 20.96 μg/m3
Sulphur Dioxide: 2.32 μg/m3
Ozone: 48.46 μg/m3

Astronomical

Sunrise: 6:46 AM
Sun Transit: 1:14 PM
Sunset: 7:44 PM
Daylight: 12 hrs 58 mins
Moonrise: 11:10 PM
Moon Transit: 2:49 AM
Moonset: 7:28 AM
Moon Phase: Full
Moon Illumination: 91.3%

Best Times for Fishing or Hunting

Major Periods

2:19 AM - 4:49 AM
10:10 AM - 12:40 AM

Minor Periods

12:00 AM - 12:00 AM
6:58 AM - 8:28 AM

Action Rating: 4 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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