Water Temperature of the Long Tom River in Monroe, OR

Current Water Temperature

54.3°F

Measurement Time: Tuesday, March 31, 2026, 2:45 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

51.1°F
Overcast
Overcast
49°F
48.9°F
71%
SW 5.8 mph
11.7 mph
46.3°F
40.7°F
0 in
100%
9 mi
1008 mbar
0

Five Day Weather Forecast

Partly Cloudy
Tue
H: 58°F
L: 43°F
Moderate rain
Wed
H: 51°F
L: 39°F
Moderate rain
Thu
H: 51°F
L: 40°F
Sunny
Fri
H: 61°F
L: 32°F
Sunny
Sat
H: 63°F
L: 35°F

Air Quality

AQI: 1 - Good
PM2.5: 5.55 μg/m3
PM10: 7.65 μg/m3
Carbon Monoxide: 148.85 μg/m3
Nitrogen Dioxide: 1.95 μg/m3
Sulphur Dioxide: 1.35 μg/m3
Ozone: 89 μg/m3

Astronomical

Sunrise: 6:56 AM
Sun Transit: 1:17 PM
Sunset: 7:39 PM
Daylight: 12 hrs 43 mins
Moonrise: 6:37 PM
Moon Transit: 12:00 AM
Moonset: 6:15 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
7:14 AM - 9:44 AM

Minor Periods

6:07 PM - 7:37 PM
5:45 AM - 7:15 AM

Action Rating: 5 out of 5

Winter Storm Warning 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...Heavy snow expected. Total snow accumulations between 10 to 18 inches. Winds gusting as high as 35 mph. * WHERE...Cascades of Lane County and Cascades of Marion and Linn Counties. * WHEN...From 5 AM Wednesday to 5 PM PDT Thursday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous.

Consider postponing travel until weather conditions improve. If you must travel, be sure to slow down and allow extra time. If your car becomes trapped in deep snow, be sure to keep your car off to stay safe from potential carbon monoxide poisoning. If you are using a generator, be sure to keep it outdoors and away from windows and vents. Be aware that walking surfaces may be slick. Walk with extra care. Backcountry recreation is not advised.


Winter Storm Warning 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...Heavy snow expected. Total snow accumulations between 10 and 18 inches. Winds gusting as high as 40 mph. * WHERE...Cascades of Lane County and Cascades of Marion and Linn Counties. * WHEN...From 5 AM Wednesday to 5 PM PDT Thursday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. * ADDITIONAL DETAILS...There is a 25-50% chance for snowfall rates exceeding 1 inch per hour along Santiam and Willamette Passes at any given hour, with the highest chances occurring between 11 PM Wednesday and 8 AM Thursday.

Consider postponing travel until weather conditions improve. If you must travel, be sure to slow down and allow extra time. If your car becomes trapped in deep snow, be sure to keep your car off to stay safe from potential carbon monoxide poisoning. If you are using a generator, be sure to keep it outdoors and away from windows and vents. Be aware that walking surfaces may be slick. Walk with extra care. Backcountry recreation is not advised.
Tuesday, March 31, 2026

Weather Forecast

Partly Cloudy
58.3°F
43°F
50°F
61%
0 in
0%
0%
11.2 mph
0.6


Air Quality

AQI: 1 - Good
PM2.5: 4.69 μg/m3
PM10: 5.85 μg/m3
Carbon Monoxide: 181.33 μg/m3
Nitrogen Dioxide: 8.3 μg/m3
Sulphur Dioxide: 1.77 μg/m3
Ozone: 57.64 μg/m3

Astronomical

Sunrise: 6:56 AM
Sun Transit: 1:17 PM
Sunset: 7:39 PM
Daylight: 12 hrs 43 mins
Moonrise: 6:37 PM
Moon Transit: 12:00 AM
Moonset: 6:15 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
7:14 AM - 9:44 AM

Minor Periods

6:07 PM - 7:37 PM
5:45 AM - 7:15 AM

Action Rating: 5 out of 5

Wednesday, April 1, 2026

Weather Forecast

Moderate rain
51.1°F
39.2°F
45.9°F
85%
0.54 in
89%
0%
17 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 4.01 μg/m3
PM10: 5.31 μg/m3
Carbon Monoxide: 151.77 μg/m3
Nitrogen Dioxide: 2.74 μg/m3
Sulphur Dioxide: 1.36 μg/m3
Ozone: 80.56 μg/m3

Astronomical

Sunrise: 6:54 AM
Sun Transit: 1:16 PM
Sunset: 7:41 PM
Daylight: 12 hrs 46 mins
Moonrise: 7:44 PM
Moon Transit: 12:40 AM
Moonset: 6:33 AM
Moon Phase: Full
Moon Illumination: 99.8%

Best Times for Fishing or Hunting

Major Periods

12:10 AM - 2:40 AM
7:57 AM - 10:27 AM

Minor Periods

7:14 PM - 8:44 PM
6:03 AM - 7:33 AM

Action Rating: 4 out of 5

Thursday, April 2, 2026

Weather Forecast

Moderate rain
51.1°F
39.9°F
45.3°F
79%
0.74 in
85%
0%
11 mph
1.1


Air Quality

AQI: 1 - Good
PM2.5: 2.73 μg/m3
PM10: 3.63 μg/m3
Carbon Monoxide: 156.45 μg/m3
Nitrogen Dioxide: 2.15 μg/m3
Sulphur Dioxide: 1.18 μg/m3
Ozone: 78.84 μg/m3

Astronomical

Sunrise: 6:52 AM
Sun Transit: 1:16 PM
Sunset: 7:42 PM
Daylight: 12 hrs 50 mins
Moonrise: 8:52 PM
Moon Transit: 1:22 AM
Moonset: 6:51 AM
Moon Phase: Full
Moon Illumination: 99.5%

Best Times for Fishing or Hunting

Major Periods

12:52 AM - 3:22 AM
8:39 AM - 11:09 AM

Minor Periods

8:22 PM - 9:52 PM
6:21 AM - 7:51 AM

Action Rating: 3 out of 5

Friday, April 3, 2026

Weather Forecast

Sunny
60.6°F
32.4°F
46.4°F
76%
0 in
0%
0%
8.5 mph
1.2


Air Quality

AQI: 1 - Good
PM2.5: 5.39 μg/m3
PM10: 6.83 μg/m3
Carbon Monoxide: 179.39 μg/m3
Nitrogen Dioxide: 8.49 μg/m3
Sulphur Dioxide: 1.62 μg/m3
Ozone: 58.64 μg/m3

Astronomical

Sunrise: 6:51 AM
Sun Transit: 1:16 PM
Sunset: 7:43 PM
Daylight: 12 hrs 53 mins
Moonrise: 9:59 PM
Moon Transit: 2:06 AM
Moonset: 7:10 AM
Moon Phase: Full
Moon Illumination: 96.6%

Best Times for Fishing or Hunting

Major Periods

1:36 AM - 4:06 AM
9:23 AM - 11:53 AM

Minor Periods

9:29 PM - 10:59 PM
6:40 AM - 8:10 AM

Action Rating: 4 out of 5

Saturday, April 4, 2026

Weather Forecast

Sunny
63.3°F
34.7°F
48.2°F
76%
0 in
0%
0%
8.1 mph
1.3


Air Quality

AQI: 1 - Good
PM2.5: 6.72 μg/m3
PM10: 8.52 μg/m3
Carbon Monoxide: 221.77 μg/m3
Nitrogen Dioxide: 9.43 μg/m3
Sulphur Dioxide: 1.97 μg/m3
Ozone: 48.31 μg/m3

Astronomical

Sunrise: 6:49 AM
Sun Transit: 1:16 PM
Sunset: 7:44 PM
Daylight: 12 hrs 56 mins
Moonrise: 11:07 PM
Moon Transit: 2:50 AM
Moonset: 7:33 AM
Moon Phase: Full
Moon Illumination: 91.3%

Best Times for Fishing or Hunting

Major Periods

2:20 AM - 4:50 AM
10:08 AM - 12:38 AM

Minor Periods

12:00 AM - 12:00 AM
7:03 AM - 8:33 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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