Water Temperature of the Long Tom River in Monroe, OR

Current Water Temperature

47.8°F

Measurement Time: Monday, December 22, 2025, 3:15 AM PST

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 / 87 meters

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 (31.0 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 (38.0 mi)

Weather for Monroe, Oregon

Current Weather

48°F
Partly cloudy
Conditions: Partly cloudy
Humidity: 86%
Feels Like: 44.3°F
Wind: S 8.1 mph
Wind Gusts: 10.9 mph
Pressure: 29.92 in
Precipitation: 0.01 in
Cloud Cover: 75%
Visibility: 9 mi
UV Index: 0.7

Five Day Weather Forecast

Patchy rain nearby
Mon
H: 53°F
L: 40°F
Patchy rain nearby
Tue
H: 45°F
L: 41°F
Heavy rain
Wed
H: 44°F
L: 38°F
Patchy rain nearby
Thu
H: 46°F
L: 36°F
Patchy rain nearby
Fri
H: 50°F
L: 36°F

Air Quality

AQI: 1 - Good
PM2.5: 3.65 μg/m3
PM10: 4.55 μg/m3
Carbon Monoxide: 138.85 μg/m3
Nitrogen Dioxide: 2.95 μg/m3
Sulphur Dioxide: 1.35 μg/m3
Ozone: 81 μg/m3

Astronomical

Sunrise: 7:46 AM
Sun Transit: 12:12 AM
Sunset: 4:38 PM
Daylight: 8 hrs 51 mins
Moonrise: 10:03 AM
Moon Transit: 2:32 PM
Moonset: 7:09 PM
Moon Phase: Waxing Crescent
Moon Illumination: 5.5%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:02 PM - 4:32 PM

Minor Periods

6:39 PM - 8:09 PM
9:33 AM - 11:03 AM

Action Rating: 3 out of 5

Winter Weather Advisory issued December 21 at 12:56PM PST until December 22 at 4:00AM PST by NWS Portland OR

Effective: Sun December 21, 2025, 12:56 PM
Expires: Mon December 22, 2025, 4:00 AM

* WHAT...Snow. Additional snow accumulations around 4 to 10 inches. * WHERE...South Washington Cascades and the Northern and Central Cascades of Oregon. * WHEN...Until 4 AM PST Monday. * 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
Monday, December 22, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 45.2°F
Average Humidity: 84%
Chance of Rain: 90%
Wind: 13.2 mph
UV Index: 0.2

Air Quality

AQI: 1 - Good
PM2.5: 3.19 μg/m3
PM10: 3.99 μg/m3
Carbon Monoxide: 155.93 μg/m3
Nitrogen Dioxide: 3.43 μg/m3
Sulphur Dioxide: 1.35 μg/m3
Ozone: 70.56 μg/m3

Astronomical

Sunrise: 7:46 AM
Sun Transit: 12:12 AM
Sunset: 4:38 PM
Daylight: 8 hrs 51 mins
Moonrise: 10:03 AM
Moon Transit: 2:32 PM
Moonset: 7:09 PM
Moon Phase: Waxing Crescent
Moon Illumination: 5.5%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:02 PM - 4:32 PM

Minor Periods

6:39 PM - 8:09 PM
9:33 AM - 11:03 AM

Action Rating: 3 out of 5

Tuesday, December 23, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 43.2°F
Average Humidity: 90%
Chance of Rain: 84%
Wind: 6.9 mph
UV Index: 0.1

Air Quality

AQI: 1 - Good
PM2.5: 4.77 μg/m3
PM10: 6.02 μg/m3
Carbon Monoxide: 154.13 μg/m3
Nitrogen Dioxide: 4.86 μg/m3
Sulphur Dioxide: 1.59 μg/m3
Ozone: 66.52 μg/m3

Astronomical

Sunrise: 7:47 AM
Sun Transit: 12:12 AM
Sunset: 4:38 PM
Daylight: 8 hrs 52 mins
Moonrise: 10:30 AM
Moon Transit: 3:20 PM
Moonset: 8:19 PM
Moon Phase: Waxing Crescent
Moon Illumination: 11.7%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:50 PM - 5:20 PM

Minor Periods

7:49 PM - 9:19 PM
10:00 AM - 11:30 AM

Action Rating: 2 out of 5

Wednesday, December 24, 2025

Weather Forecast

Conditions: Heavy rain
Average Temperature: 40.3°F
Average Humidity: 94%
Chance of Rain: 86%
Wind: 8.5 mph
UV Index: 0.1

Air Quality

AQI: 1 - Good
PM2.5: 3.82 μg/m3
PM10: 4.19 μg/m3
Carbon Monoxide: 159.89 μg/m3
Nitrogen Dioxide: 7.74 μg/m3
Sulphur Dioxide: 1.92 μg/m3
Ozone: 50.52 μg/m3

Astronomical

Sunrise: 7:47 AM
Sun Transit: 12:13 AM
Sunset: 4:39 PM
Daylight: 8 hrs 52 mins
Moonrise: 10:53 AM
Moon Transit: 4:05 PM
Moonset: 9:29 PM
Moon Phase: Waxing Crescent
Moon Illumination: 19.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
3:35 PM - 6:05 PM

Minor Periods

8:59 PM - 10:29 PM
10:23 AM - 11:53 AM

Action Rating: 2 out of 5

Thursday, December 25, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 39.7°F
Average Humidity: 94%
Chance of Rain: 84%
Wind: 8.1 mph
UV Index: 0.1

Air Quality

AQI: 1 - Good
PM2.5: 3.24 μg/m3
PM10: 3.52 μg/m3
Carbon Monoxide: 177.41 μg/m3
Nitrogen Dioxide: 8.06 μg/m3
Sulphur Dioxide: 1.99 μg/m3
Ozone: 55.68 μg/m3

Astronomical

Sunrise: 7:48 AM
Sun Transit: 12:13 AM
Sunset: 4:40 PM
Daylight: 8 hrs 52 mins
Moonrise: 11:13 AM
Moon Transit: 4:50 PM
Moonset: 10:40 PM
Moon Phase: Waxing Crescent
Moon Illumination: 29.7%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
4:20 PM - 6:50 PM

Minor Periods

10:10 PM - 11:40 PM
10:43 AM - 12:13 AM

Action Rating: 3 out of 5

Friday, December 26, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 40.3°F
Average Humidity: 86%
Chance of Rain: 67%
Wind: 9.8 mph
UV Index: 0

Air Quality

AQI: 1 - Good
PM2.5: 4.84 μg/m3
PM10: 5.84 μg/m3
Carbon Monoxide: 186.49 μg/m3
Nitrogen Dioxide: 8.78 μg/m3
Sulphur Dioxide: 1.79 μg/m3
Ozone: 46.38 μg/m3

Astronomical

Sunrise: 7:48 AM
Sun Transit: 12:14 AM
Sunset: 4:40 PM
Daylight: 8 hrs 52 mins
Moonrise: 11:31 AM
Moon Transit: 12:00 AM
Moonset: 11:51 PM
Moon Phase: First Quarter
Moon Illumination: 40.5%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:07 AM - 2:37 AM

Minor Periods

12:00 AM - 12:00 AM
11:01 AM - 12:31 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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