Water Temperature of the South Fork Bull Run River in Marmot, OR

Current Water Temperature

56.7°F

Measurement Time: Wednesday, August 5, 2026, 1:45 AM PDT

Temperature Locations

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Local Points of Interest

Mount Hood National Forest

South Fork Bull Run River

Station Name: SOUTH FORK BULL RUN RIVER NEAR BULL RUN, OR
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 1,171 feet

Nearest Address:
NF-12
Marmot, OR 97055
Clackamas County

GPS Coordinates: 45.444564, -122.1095292

Nearby Water Temperatures

Little Sandy River, Sandy, OR (3.6 mi)
Bull Run River, Aims, OR (4.3 mi)
Fir Creek, Brightwood, OR (4.7 mi)
North Fork Bull Run River, Corbett, OR (5 mi)
Bull Run River, Corbett, OR (6 mi)
Columbia River, Dodson, OR (11.8 mi)
Bull Run River, Brightwood, OR (12 mi)
Johnson Creek, Gresham, OR (15.4 mi)
Clackamas River, Estacada, OR (15.5 mi)
Eagle Creek, Bonneville, OR (16.1 mi)
Kelley Creek, Portland, OR (19 mi)
Clackamas River, Estacada, OR (19.3 mi)
Johnson Creek, Portland, OR (19.4 mi)
Fish Creek, Three Lynx, OR (20.6 mi)
Clackamas River, Three Lynx, OR (22.2 mi)

Weather for Marmot, Oregon

Current Weather

74.3°F
Smoky haze
Smoky haze
70.5°F
73.9°F
24%
ESE 2.2 mph
6.7 mph
74.3°F
34.9°F
0 in
0%
6 mi
1013 mbar
0.2

Five Day Weather Forecast

Smoky haze
Wed
H: 91°F
L: 59°F
Sunny
Thu
H: 89°F
L: 54°F
Sunny
Fri
H: 85°F
L: 51°F
Sunny
Sat
H: 81°F
L: 49°F
Sunny
Sun
H: 82°F
L: 45°F

Air Quality

AQI: 1 - Good
PM2.5: 66.4 μg/m3
PM10: 67.8 μg/m3
Carbon Monoxide: 268 μg/m3
Nitrogen Dioxide: 6.9 μg/m3
Sulphur Dioxide: 1.7 μg/m3
Ozone: 98 μg/m3

Astronomical

Sunrise: 5:57 AM
Sun Transit: 1:14 PM
Sunset: 8:31 PM
Daylight: 14 hrs 33 mins
Moonrise: 11:23 PM
Moon Transit: 6:20 AM
Moonset: 2:01 PM
Moon Phase: Last Quarter
Moon Illumination: 43.2%

Best Times for Fishing or Hunting

Major Periods

5:50 AM - 8:20 AM
1:50 PM - 4:20 PM

Minor Periods

12:00 AM - 12:00 AM
1:31 PM - 3:01 PM

Action Rating: 3 out of 5

Air Quality Alert issued August 4 at 11:53AM PDT by NWS Portland OR

Effective: Tue August 4, 2026, 11:53 AM
Expires: Wed August 5, 2026, 12:00 PM

The Southwest Clean Air Agency has continued an Air Quality Advisory, which is in effect until 11 AM PDT Thursday. An Air Quality Advisory for Smoke and Ozone remains in effect. Wildfires burning in the region combined with forecasted conditions will cause air quality to reach unhealthy levels due to smoke and ozone at times through 11 AM PDT Thursday. Pollutants in smoke can cause burning eyes, runny nose, aggravate heart and lung diseases, and aggravate other serious health problems. Limit outdoor activities and keep children indoors if it is smoky. Please follow medical advice if you have a heart or lung condition. More information about air quality can be found at: www.swcleanair.gov


Red Flag Warning issued August 4 at 12:06PM PDT until August 5 at 8:00PM PDT by NWS Portland OR

Effective: Tue August 4, 2026, 12:06 PM
Expires: Wed August 5, 2026, 5:00 AM

...CRITICAL FIRE WEATHER CONDITIONS EXPECTED IN THE WESTERN COLUMBIA RIVER GORGE THIS AFTERNOON THROUGH WEDNESDAY EVENING FOR DRY CONDITIONS AND EASTERLY WINDS UP TO 35 MPH... * AFFECTED AREA...In Washington, Fire Weather Zone 636 Western Columbia River Gorge in Oregon and Washington. * WINDS...Northeast 10 to 20 mph with gusts up to 30-35 mph. Winds will be strongest through this afternoon. * RELATIVE HUMIDITY...As low as 15-20 percent. Relative humidity values will be lowest this afternoon and Wednesday afternoon. Poor overnight humidity recoveries are expected with maximum relative humidity values ranging between 35-45%. * IMPACTS...Conditions may be favorable for rapid fire spread which may threaten life and property. Use extra caution with potential ignition sources, especially in grassy areas. Outdoor burning is not recommended.

A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of the above conditions can contribute to extreme fire behavior.
Wednesday, August 5, 2026

Weather Forecast

Smoky haze
91.4°F
59°F
76.6°F
25%
0 in
0%
0%
6.9 mph
1.1


Air Quality

AQI: 3 - Unhealthy for Sensitive Groups
PM2.5: 57.38 μg/m3
PM10: 59.14 μg/m3
Carbon Monoxide: 313.5 μg/m3
Nitrogen Dioxide: 6.91 μg/m3
Sulphur Dioxide: 1.68 μg/m3
Ozone: 124.21 μg/m3

Astronomical

Sunrise: 5:57 AM
Sun Transit: 1:14 PM
Sunset: 8:31 PM
Daylight: 14 hrs 33 mins
Moonrise: 11:23 PM
Moon Transit: 6:20 AM
Moonset: 2:01 PM
Moon Phase: Last Quarter
Moon Illumination: 43.2%

Best Times for Fishing or Hunting

Major Periods

5:50 AM - 8:20 AM
1:50 PM - 4:20 PM

Minor Periods

12:00 AM - 12:00 AM
1:31 PM - 3:01 PM

Action Rating: 3 out of 5

Thursday, August 6, 2026

Weather Forecast

Sunny
89.2°F
53.6°F
70.6°F
37%
0 in
1%
0%
6.7 mph
5.9


Air Quality

AQI: 2 - Moderate
PM2.5: 30.48 μg/m3
PM10: 31.19 μg/m3
Carbon Monoxide: 213.71 μg/m3
Nitrogen Dioxide: 4.85 μg/m3
Sulphur Dioxide: 1.55 μg/m3
Ozone: 136.83 μg/m3

Astronomical

Sunrise: 5:59 AM
Sun Transit: 1:14 PM
Sunset: 8:29 PM
Daylight: 14 hrs 31 mins
Moonrise: 12:23 AM
Moon Transit: 7:14 AM
Moonset: 3:21 PM
Moon Phase: Last Quarter
Moon Illumination: 32.3%

Best Times for Fishing or Hunting

Major Periods

6:44 AM - 9:14 AM
2:46 PM - 5:16 PM

Minor Periods

2:51 PM - 4:21 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Friday, August 7, 2026

Weather Forecast

Sunny
84.7°F
51°F
67.3°F
39%
0 in
1%
0%
6.7 mph
7


Air Quality

AQI: 1 - Good
PM2.5: 13.52 μg/m3
PM10: 14.79 μg/m3
Carbon Monoxide: 147.04 μg/m3
Nitrogen Dioxide: 4.96 μg/m3
Sulphur Dioxide: 0.87 μg/m3
Ozone: 101.75 μg/m3

Astronomical

Sunrise: 6:00 AM
Sun Transit: 1:14 PM
Sunset: 8:28 PM
Daylight: 14 hrs 28 mins
Moonrise: 12:59 AM
Moon Transit: 8:13 AM
Moonset: 4:39 PM
Moon Phase: Last Quarter
Moon Illumination: 22.2%

Best Times for Fishing or Hunting

Major Periods

7:43 AM - 10:13 AM
3:46 PM - 6:16 PM

Minor Periods

4:09 PM - 5:39 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Saturday, August 8, 2026

Weather Forecast

Sunny
80.6°F
48.5°F
63.9°F
52%
0 in
2%
0%
7.8 mph
7


Air Quality

AQI: 1 - Good
PM2.5: 7.96 μg/m3
PM10: 9.41 μg/m3
Carbon Monoxide: 102.8 μg/m3
Nitrogen Dioxide: 4.68 μg/m3
Sulphur Dioxide: 0.75 μg/m3
Ozone: 81.08 μg/m3

Astronomical

Sunrise: 6:01 AM
Sun Transit: 1:14 PM
Sunset: 8:27 PM
Daylight: 14 hrs 26 mins
Moonrise: 12:48 AM
Moon Transit: 9:16 AM
Moonset: 5:49 PM
Moon Phase: Waning Crescent
Moon Illumination: 13.6%

Best Times for Fishing or Hunting

Major Periods

8:46 AM - 11:16 AM
4:50 PM - 7:20 PM

Minor Periods

5:19 PM - 6:49 PM
12:18 AM - 1:48 AM

Action Rating: 2 out of 5

Sunday, August 9, 2026

Weather Forecast

Sunny
81.7°F
45°F
62.8°F
56%
0 in
3%
0%
6.5 mph
7


Air Quality

AQI: 1 - Good
PM2.5: 8.25 μg/m3
PM10: 10.42 μg/m3
Carbon Monoxide: 103.33 μg/m3
Nitrogen Dioxide: 7.32 μg/m3
Sulphur Dioxide: 0.68 μg/m3
Ozone: 45.67 μg/m3

Astronomical

Sunrise: 6:02 AM
Sun Transit: 1:13 PM
Sunset: 8:25 PM
Daylight: 14 hrs 23 mins
Moonrise: 1:50 AM
Moon Transit: 10:21 AM
Moonset: 6:47 PM
Moon Phase: Waning Crescent
Moon Illumination: 6.8%

Best Times for Fishing or Hunting

Major Periods

5:55 PM - 8:25 PM
9:51 AM - 12:21 AM

Minor Periods

6:17 PM - 7:47 PM
1:20 AM - 2:50 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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