Water Temperature of the Tualatin River in Hillsboro, OR

Current Water Temperature

52.5°F 11.4°C
Cold Thermal Gear Required
52.5°F
Frigid < 50°F
Cold 50°–60°
Cool 60°–70°
Comfortable 70°–80°
Warm 80°+

Cold shock risk with rapid dexterity loss (10–15 mins). Wetsuit or drysuit strongly advised for any immersion.

Measurement Time: Thursday, November 12, 2026, 3:30 AM PST

Temperature Locations

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Local Points of Interest

Jackson Bottom Wetlands; Jackson Slough

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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

55.2°F
Overcast
Conditions: Overcast
Humidity: 97%
Feels Like: 55.8°F
Wind: SSE 1.9 mph
Wind Gusts: 2.9 mph
Pressure: 29.72 in
Precipitation: 0 in
Cloud Cover: 100%
Visibility: 7.6 mi
UV Index: 1.5

Five-Day Weather Forecast

Fog
Thu
H: 57°F
L: 48°F
Moderate Rain
Fri
H: 53°F
L: 46°F
Dense Drizzle
Sat
H: 55°F
L: 46°F
Light Rain Showers
Sun
H: 54°F
L: 44°F
Light Drizzle
Mon
H: 54°F
L: 42°F

Air Quality

EPA Index 2 • Moderate

Air quality is acceptable. However, there may be a risk for some people, particularly those who are unusually sensitive to air pollution.

PM2.5
29.7 μg/m³
Moderate
PM10
31.5 μg/m³
Good
Ozone (O3)
20 μg/m³
Photochemical
NO2
24.1 μg/m³
Nitrogen Dioxide
SO2
1.1 μg/m³
Sulfur Dioxide
CO
472 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 38m daylight
Sunrise 7:07 AM
Solar Noon 11:56 AM
Sunset 4:45 PM
Moon
Waxing Crescent • 6%
Moonrise 10:51 AM
Transit 2:48 PM
Moonset 6:49 PM

Best Times for Fishing or Hunting

Major Periods

1:53 AM - 4:23 AM
2:18 PM - 4:48 PM

Minor Periods

10:21 AM - 11:51 AM
6:19 PM - 7:49 PM
Action Rating:
Good Action 3/5
Thursday, November 12, 2026

Weather Forecast

Conditions: Fog
Average Temperature: 51.6°F
Average Humidity: 96%
Chance of Rain: 4%
Wind: 4.5 mph
UV Index: 1.6

Air Quality

EPA Index 2 • Moderate
PM2.5
32 μg/m³
Moderate
PM10
33.5 μg/m³
Good
Ozone (O3)
6.7 μg/m³
Photochemical
NO2
34.1 μg/m³
Nitrogen Dioxide
SO2
1.5 μg/m³
Sulfur Dioxide
CO
546 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 38m daylight
Sunrise 7:07 AM
Solar Noon 11:56 AM
Sunset 4:45 PM
Moon
Waxing Crescent • 6%
Moonrise 10:51 AM
Transit 2:48 PM
Moonset 6:49 PM

Best Times for Fishing or Hunting

Major Periods

1:53 AM - 4:23 AM
2:18 PM - 4:48 PM

Minor Periods

10:21 AM - 11:51 AM
6:19 PM - 7:49 PM
Action Rating:
Good Action 3/5
Friday, November 13, 2026

Weather Forecast

Conditions: Moderate Rain
Average Temperature: 50°F
Average Humidity: 85%
Chance of Rain: 100%
Wind: 16.4 mph
UV Index: 1.3

Air Quality

EPA Index 2 • Moderate
PM2.5
10.1 μg/m³
Good
PM10
10.7 μg/m³
Good
Ozone (O3)
38.5 μg/m³
Photochemical
NO2
20.1 μg/m³
Nitrogen Dioxide
SO2
0.6 μg/m³
Sulfur Dioxide
CO
267.6 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 35m daylight
Sunrise 7:08 AM
Solar Noon 11:56 AM
Sunset 4:44 PM
Moon
Waxing Crescent • 13%
Moonrise 11:33 AM
Transit 3:39 PM
Moonset 7:49 PM

Best Times for Fishing or Hunting

Major Periods

2:44 AM - 5:14 AM
3:09 PM - 5:39 PM

Minor Periods

11:03 AM - 12:33 PM
7:19 PM - 8:49 PM
Action Rating:
Fair Action 2/5
Saturday, November 14, 2026

Weather Forecast

Conditions: Dense Drizzle
Average Temperature: 51.3°F
Average Humidity: 82%
Chance of Rain: 97%
Wind: 12.3 mph
UV Index: 1.8

Air Quality

EPA Index 2 • Moderate
PM2.5
4 μg/m³
Good
PM10
4.5 μg/m³
Good
Ozone (O3)
56.9 μg/m³
Photochemical
NO2
9.3 μg/m³
Nitrogen Dioxide
SO2
0.5 μg/m³
Sulfur Dioxide
CO
136.1 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 33m daylight
Sunrise 7:10 AM
Solar Noon 11:56 AM
Sunset 4:43 PM
Moon
Waxing Crescent • 21%
Moonrise 12:08 PM
Transit 4:27 PM
Moonset 8:54 PM

Best Times for Fishing or Hunting

Major Periods

3:33 AM - 6:03 AM
3:57 PM - 6:27 PM

Minor Periods

11:38 AM - 1:08 PM
8:24 PM - 9:54 PM
Action Rating:
Fair Action 2/5
Sunday, November 15, 2026

Weather Forecast

Conditions: Light Rain Showers
Average Temperature: 50.7°F
Average Humidity: 85%
Chance of Rain: 97%
Wind: 10.1 mph
UV Index: 1.9

Air Quality

EPA Index 1 • Good
PM2.5
5.2 μg/m³
Good
PM10
5.7 μg/m³
Good
Ozone (O3)
50.8 μg/m³
Photochemical
NO2
11.9 μg/m³
Nitrogen Dioxide
SO2
0.5 μg/m³
Sulfur Dioxide
CO
149.1 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 31m daylight
Sunrise 7:11 AM
Solar Noon 11:56 AM
Sunset 4:42 PM
Moon
Waxing Crescent • 31%
Moonrise 12:36 PM
Transit 5:14 PM
Moonset 10:00 PM

Best Times for Fishing or Hunting

Major Periods

4:21 AM - 6:51 AM
4:44 PM - 7:14 PM

Minor Periods

12:06 PM - 1:36 PM
9:30 PM - 11:00 PM
Action Rating:
Very Good 4/5
Monday, November 16, 2026

Weather Forecast

Conditions: Light Drizzle
Average Temperature: 47.7°F
Average Humidity: 84%
Chance of Rain: 33%
Wind: 8.6 mph
UV Index: 2.4

Air Quality

EPA Index 2 • Moderate
PM2.5
10.5 μg/m³
Good
PM10
12 μg/m³
Good
Ozone (O3)
37.2 μg/m³
Photochemical
NO2
18.5 μg/m³
Nitrogen Dioxide
SO2
0.9 μg/m³
Sulfur Dioxide
CO
165.5 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 28m daylight
Sunrise 7:13 AM
Solar Noon 11:56 AM
Sunset 4:41 PM
Moon
First Quarter • 42%
Moonrise 12:59 PM
Transit 5:58 PM
Moonset 11:07 PM

Best Times for Fishing or Hunting

Major Periods

5:06 AM - 7:36 AM
5:28 PM - 7:58 PM

Minor Periods

12:29 PM - 1:59 PM
10:37 PM - 12:07 AM
Action Rating:
Good Action 3/5
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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