Water Temperature of the Long Tom River in Monroe, OR

Current Water Temperature

76.3°F

Measurement Time: Saturday, July 18, 2026, 4:15 PM PDT

Temperature Locations

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Long Tom River

Station Name: LONG TOM RIVER AT MONROE, OR
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 285 feet

Nearest Address:
475 S Fifth St
Monroe, OR 97456
Benton County

GPS Coordinates: 44.31290047, -123.2964859

Nearby Water Temperatures

Willamette River , Harrisburg, OR (6.7 mi)
Long Tom River, Alvadore, OR (13.1 mi)
Willamette River , Eugene, OR (17.7 mi)
McKenzie River, Eugene, OR (18.5 mi)
McKenzie River, Springfield, OR (23.4 mi)
Willamette River , Albany, OR (24.4 mi)
Cedar Creek, Thurston, OR (25.6 mi)
Camp Creek, Springfield, OR (26.4 mi)
South Santiam River, Waterloo, OR (26.6 mi)
South Santiam River, Sweet Home, OR (30.8 mi)
McKenzie River, Walterville, OR (31 mi)
North Santiam River, Jefferson, OR (31.6 mi)
Santiam River, Jefferson, OR (31.8 mi)
Middle Fork Willamette River, Fall Creek, OR (34.1 mi)
Middle Santiam River, Foster, OR (38 mi)

Weather for Monroe, Oregon

Current Weather

64°F
Clear
Clear
64°F
65.8°F
73%
NW 5.1 mph
10.8 mph
65.8°F
55.7°F
0 in
0%
9 mi
1019 mbar
0

Five Day Weather Forecast

Sunny
Sat
H: 83°F
L: 53°F
Sunny
Sun
H: 89°F
L: 58°F
Sunny
Mon
H: 91°F
L: 58°F
Sunny
Tue
H: 94°F
L: 59°F
Sunny
Wed
H: 93°F
L: 56°F

Air Quality

AQI: 1 - Good
PM2.5: 4.1 μg/m3
PM10: 5.1 μg/m3
Carbon Monoxide: 95 μg/m3
Nitrogen Dioxide: 2.4 μg/m3
Sulphur Dioxide: 0.5 μg/m3
Ozone: 59 μg/m3

Astronomical

Sunrise: 5:46 AM
Sun Transit: 1:19 PM
Sunset: 8:52 PM
Daylight: 15 hrs 6 mins
Moonrise: 11:00 AM
Moon Transit: 5:12 PM
Moonset: 11:12 PM
Moon Phase: Waxing Crescent
Moon Illumination: 13.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
4:42 PM - 7:12 PM

Minor Periods

12:00 AM - 12:00 AM
10:30 AM - 12:00 AM

Action Rating: 2 out of 5

Small Craft Advisory issued July 18 at 1:38PM PDT until July 20 at 2:00AM PDT by NWS Portland OR

Effective: Sat July 18, 2026, 1:38 PM
Expires: Sun July 19, 2026, 5:45 AM

* WHAT...Seas 5 to 8 ft at 10 seconds and north winds 10 to 20 kt with gusts up to 30 kt. * WHERE...Coastal waters from Cape Foulweather to Florence OR out 10 NM. * WHEN...Until 2 AM PDT Monday. * IMPACTS...Conditions will be hazardous to small craft.

Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions.
Saturday, July 18, 2026

Weather Forecast

Sunny
83.1°F
53.4°F
68.2°F
62%
0 in
4%
0%
8.9 mph
8.2


Air Quality

AQI: 1 - Good
PM2.5: 3.98 μg/m3
PM10: 5.02 μg/m3
Carbon Monoxide: 97.04 μg/m3
Nitrogen Dioxide: 2.51 μg/m3
Sulphur Dioxide: 0.51 μg/m3
Ozone: 59.75 μg/m3

Astronomical

Sunrise: 5:46 AM
Sun Transit: 1:19 PM
Sunset: 8:52 PM
Daylight: 15 hrs 6 mins
Moonrise: 11:00 AM
Moon Transit: 5:12 PM
Moonset: 11:12 PM
Moon Phase: Waxing Crescent
Moon Illumination: 13.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
4:42 PM - 7:12 PM

Minor Periods

12:00 AM - 12:00 AM
10:30 AM - 12:00 AM

Action Rating: 2 out of 5

Sunday, July 19, 2026

Weather Forecast

Sunny
88.8°F
57.6°F
71.1°F
56%
0 in
3%
0%
8.7 mph
8.9


Air Quality

AQI: 1 - Good
PM2.5: 3.66 μg/m3
PM10: 4.58 μg/m3
Carbon Monoxide: 98.5 μg/m3
Nitrogen Dioxide: 2.28 μg/m3
Sulphur Dioxide: 0.58 μg/m3
Ozone: 66.67 μg/m3

Astronomical

Sunrise: 5:47 AM
Sun Transit: 1:19 PM
Sunset: 8:52 PM
Daylight: 15 hrs 5 mins
Moonrise: 12:10 AM
Moon Transit: 5:56 PM
Moonset: 12:12 AM
Moon Phase: Waxing Crescent
Moon Illumination: 22.6%

Best Times for Fishing or Hunting

Major Periods

12:30 AM - 3:00 AM
5:26 PM - 7:56 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
90.7°F
57.8°F
71.5°F
54%
0 in
4%
0%
5.1 mph
7.7


Air Quality

AQI: 1 - Good
PM2.5: 7.27 μg/m3
PM10: 9.33 μg/m3
Carbon Monoxide: 107.17 μg/m3
Nitrogen Dioxide: 3.28 μg/m3
Sulphur Dioxide: 0.7 μg/m3
Ozone: 65.46 μg/m3

Astronomical

Sunrise: 5:48 AM
Sun Transit: 1:19 PM
Sunset: 8:51 PM
Daylight: 15 hrs 3 mins
Moonrise: 1:18 PM
Moon Transit: 6:39 PM
Moonset: 12:30 AM
Moon Phase: Waxing Crescent
Moon Illumination: 32.7%

Best Times for Fishing or Hunting

Major Periods

1:13 AM - 3:43 AM
6:09 PM - 8:39 PM

Minor Periods

12:48 AM - 2:18 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Tuesday, July 21, 2026

Weather Forecast

Sunny
94.3°F
58.5°F
74.7°F
52%
0 in
2%
0%
6.5 mph
7.1


Air Quality

AQI: 1 - Good
PM2.5: 8.25 μg/m3
PM10: 10.06 μg/m3
Carbon Monoxide: 115.13 μg/m3
Nitrogen Dioxide: 3.83 μg/m3
Sulphur Dioxide: 0.92 μg/m3
Ozone: 76.67 μg/m3

Astronomical

Sunrise: 5:49 AM
Sun Transit: 1:19 PM
Sunset: 8:50 PM
Daylight: 15 hrs 1 mins
Moonrise: 2:26 PM
Moon Transit: 7:23 PM
Moonset: 12:50 AM
Moon Phase: First Quarter
Moon Illumination: 43.7%

Best Times for Fishing or Hunting

Major Periods

1:57 AM - 4:27 AM
6:53 PM - 9:23 PM

Minor Periods

1:56 PM - 3:26 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Wednesday, July 22, 2026

Weather Forecast

Sunny
92.7°F
55.9°F
71.4°F
54%
0 in
3%
0%
10.7 mph
8.8


Air Quality

AQI: 1 - Good
PM2.5: 7.66 μg/m3
PM10: 10.49 μg/m3
Carbon Monoxide: 118.69 μg/m3
Nitrogen Dioxide: 1.8 μg/m3
Sulphur Dioxide: 0.81 μg/m3
Ozone: 72.46 μg/m3

Astronomical

Sunrise: 5:50 AM
Sun Transit: 1:19 PM
Sunset: 8:49 PM
Daylight: 14 hrs 59 mins
Moonrise: 3:33 PM
Moon Transit: 8:09 PM
Moonset: 12:13 AM
Moon Phase: First Quarter
Moon Illumination: 55.0%

Best Times for Fishing or Hunting

Major Periods

2:41 AM - 5:11 AM
7:39 PM - 10:09 PM

Minor Periods

3:03 PM - 4:33 PM
12:00 AM - 12:00 AM

Action Rating: 2 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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