Water Temperature of the Kootenai River in Porthill, ID

Current Water Temperature

62.1°F

Measurement Time: Friday, August 22, 2025, 10:45 PM PDT

Temperature Locations

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Local Points of Interest

Boundary Creek; Rykert Creek

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Kootenai River

Station Name: KOOTENAI RIVER AT PORTHILL ID
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 1,749 feet / 533 meters

Nearest Address:
207 Tavern Farm Rd
Porthill, ID 83805
Boundary County

GPS Coordinates: 48.99638889, -116.5075

Nearby Water Temperatures

Kootenai River, Copeland, ID (7.9 mi)
Kootenai River, Bonners Ferry, ID (15.1 mi)
Kootenai River, Bonners Ferry, ID (22.4 mi)
Kootenai River, Troy, MT (33.5 mi)
Pend Oreille River, Metaline Falls, WA (38.2 mi)
Pend Oreille River, Metaline Falls, WA (38.4 mi)
South Fork Flathead River, Columbia Falls, MT (121.0 mi)
Okanogan River, Oroville, WA (132.2 mi)
Osoyoos Lake, Oroville, WA (133.0 mi)
Similkameen River , Nighthawk, WA (141.0 mi)
Okanogan River, Malott, WA (154.1 mi)
North Fork Clearwater River, Pierce, ID (154.5 mi)
Columbia River, Bridgeport, WA (159.9 mi)
Andrews Creek, Mazama, WA (165.6 mi)
Columbia River, Azwell, WA (169.9 mi)

Weather for Porthill, Idaho

Current Weather

59.2°F
Sunny
Conditions: Sunny
Humidity: 58%
Feels Like: 59.2°F
Wind: NW 2.5 mph
Wind Gusts: 5.2 mph
Pressure: 30.19 in
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 6 mi
UV Index: 0

Five Day Weather Forecast

Sunny
Sat
H: 86°F
L: 52°F
Sunny
Sun
H: 85°F
L: 54°F
Partly Cloudy
Mon
H: 89°F
L: 55°F
Sunny
Tue
H: 93°F
L: 53°F
Partly Cloudy
Wed
H: 91°F
L: 54°F

Air Quality

AQI: 1 - Good
PM2.5: 9.99 μg/m3
PM10: 10.36 μg/m3
Carbon Monoxide: 268.25 μg/m3
Nitrogen Dioxide: 0.56 μg/m3
Sulphur Dioxide: 1.11 μg/m3
Ozone: 108 μg/m3

Astronomical

Sunrise: 5:50 AM
Sun Transit: 12:48 AM
Sunset: 7:46 PM
Daylight: 13 hrs 55 mins
Moonrise: 6:13 AM
Moon Transit: 1:16 PM
Moonset: 8:04 PM
Moon Phase: New
Moon Illumination: 1.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:46 AM - 3:16 PM

Minor Periods

7:34 PM - 9:04 PM
5:43 AM - 7:13 AM

Action Rating: 5 out of 5

Heat Advisory issued August 22 at 10:56AM PDT until August 27 at 9:00PM PDT by NWS Spokane WA

Effective: Fri August 22, 2025, 10:56 AM
Expires: Sat August 23, 2025, 4:15 PM

* WHAT...Hot temperatures. High temperatures 90 to 99 degrees for elevations below 3500 feet. High temperatures 80 to 89 degrees for elevations above 3500 feet. Limited overnight relief with low temperatures 57 to 65. * WHERE...Post Falls, Kamiah, Soldiers Meadow Road, Peola, Davenport, Worley, Craigmont, Sherman Pass, Anatone, Airway Heights, Boulder Creek Road, Metaline Falls, Colfax, Moscow, Genesee, La Crosse, Metaline, Republic, Tiger, Tekoa, Plummer, Coeur d'Alene, Uniontown, Flowery Trail Road, Cloverland Road, Deer Park, Rosalia, Chewelah, Fruitland, Colville, Newport, Kettle Falls, Springdale-Hunters Road, Chesaw Road, Inchelium, Orin-Rice Road, Oakesdale, Mountain Road, Highway 20 Wauconda Summit, Nezperce, Wauconda, Spokane Valley, Potlatch, Winchester, Rockford, Downtown Spokane, Pullman, Hayden, Northport, Ione, Cheney, and Fairfield. * WHEN...From noon Saturday to 9 PM PDT Wednesday. * IMPACTS...Hot temperatures will increase the risk of heat-related illnesses. Heat of this magnitude affects anyone without cooling and hydration as well as health systems and industries.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1.


Heat Advisory issued August 22 at 10:56AM PDT until August 27 at 9:00PM PDT by NWS Spokane WA

Effective: Fri August 22, 2025, 10:56 AM
Expires: Sat August 23, 2025, 4:15 PM

* WHAT...Hot temperatures. High temperatures 90 to 99 degrees for elevations below 3500 feet. High temperatures 80 to 89 degrees for elevations above 3500 feet. Limited overnight relief with low temperatures 57 to 65. * WHERE...Post Falls, Kamiah, Soldiers Meadow Road, Peola, Davenport, Worley, Craigmont, Sherman Pass, Anatone, Airway Heights, Boulder Creek Road, Metaline Falls, Colfax, Moscow, Genesee, La Crosse, Metaline, Republic, Tiger, Tekoa, Plummer, Coeur d'Alene, Uniontown, Flowery Trail Road, Cloverland Road, Deer Park, Rosalia, Chewelah, Fruitland, Colville, Newport, Kettle Falls, Springdale-Hunters Road, Chesaw Road, Inchelium, Orin-Rice Road, Oakesdale, Mountain Road, Highway 20 Wauconda Summit, Nezperce, Wauconda, Spokane Valley, Potlatch, Winchester, Rockford, Downtown Spokane, Pullman, Hayden, Northport, Ione, Cheney, and Fairfield. * WHEN...From noon Saturday to 9 PM PDT Wednesday. * IMPACTS...Hot temperatures will increase the risk of heat-related illnesses. Heat of this magnitude affects anyone without cooling and hydration as well as health systems and industries.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1.


Saturday, August 23, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 68.7°F
Average Humidity: 41%
Chance of Rain: 0%
Wind: 3.1 mph
UV Index: 1.9

Air Quality

AQI: 1 - Good
PM2.5: 14.53 μg/m3
PM10: 14.81 μg/m3
Carbon Monoxide: 309.47 μg/m3
Nitrogen Dioxide: 11.27 μg/m3
Sulphur Dioxide: 1.22 μg/m3
Ozone: 81.36 μg/m3

Astronomical

Sunrise: 5:50 AM
Sun Transit: 12:48 AM
Sunset: 7:46 PM
Daylight: 13 hrs 55 mins
Moonrise: 6:13 AM
Moon Transit: 1:16 PM
Moonset: 8:04 PM
Moon Phase: New
Moon Illumination: 1.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:46 AM - 3:16 PM

Minor Periods

7:34 PM - 9:04 PM
5:43 AM - 7:13 AM

Action Rating: 5 out of 5

Sunday, August 24, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 68.8°F
Average Humidity: 40%
Chance of Rain: 0%
Wind: 3.1 mph
UV Index: 1.9

Air Quality

AQI: 1 - Good
PM2.5: 11.51 μg/m3
PM10: 11.93 μg/m3
Carbon Monoxide: 280.76 μg/m3
Nitrogen Dioxide: 10.3 μg/m3
Sulphur Dioxide: 1.1 μg/m3
Ozone: 89.04 μg/m3

Astronomical

Sunrise: 5:52 AM
Sun Transit: 12:48 AM
Sunset: 7:44 PM
Daylight: 13 hrs 52 mins
Moonrise: 7:26 AM
Moon Transit: 2:00 PM
Moonset: 8:17 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
1:30 PM - 4:00 PM

Minor Periods

7:47 PM - 9:17 PM
6:56 AM - 8:26 AM

Action Rating: 4 out of 5

Monday, August 25, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 70.6°F
Average Humidity: 35%
Chance of Rain: 0%
Wind: 2.9 mph
UV Index: 1.9

Air Quality

AQI: 1 - Good
PM2.5: 13.05 μg/m3
PM10: 13.78 μg/m3
Carbon Monoxide: 274.1 μg/m3
Nitrogen Dioxide: 13.62 μg/m3
Sulphur Dioxide: 0.95 μg/m3
Ozone: 89.2 μg/m3

Astronomical

Sunrise: 5:53 AM
Sun Transit: 12:47 AM
Sunset: 7:42 PM
Daylight: 13 hrs 48 mins
Moonrise: 8:38 AM
Moon Transit: 2:40 PM
Moonset: 8:30 PM
Moon Phase: New
Moon Illumination: 1.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:10 PM - 4:40 PM

Minor Periods

8:00 PM - 9:30 PM
8:08 AM - 9:38 AM

Action Rating: 4 out of 5

Tuesday, August 26, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 71.5°F
Average Humidity: 35%
Chance of Rain: 0%
Wind: 4 mph
UV Index: 1.8

Air Quality

AQI: 1 - Good
PM2.5: 14.19 μg/m3
PM10: 14.89 μg/m3
Carbon Monoxide: 267.36 μg/m3
Nitrogen Dioxide: 15.96 μg/m3
Sulphur Dioxide: 1.01 μg/m3
Ozone: 88.2 μg/m3

Astronomical

Sunrise: 5:55 AM
Sun Transit: 12:47 AM
Sunset: 7:40 PM
Daylight: 13 hrs 45 mins
Moonrise: 9:47 AM
Moon Transit: 3:20 PM
Moonset: 8:42 PM
Moon Phase: Waxing Crescent
Moon Illumination: 6.1%

Best Times for Fishing or Hunting

Major Periods

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

Minor Periods

8:12 PM - 9:42 PM
9:17 AM - 10:47 AM

Action Rating: 2 out of 5

Wednesday, August 27, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 70.7°F
Average Humidity: 40%
Chance of Rain: 0%
Wind: 4 mph
UV Index: 0

Air Quality

AQI: 1 - Good
PM2.5: 11.51 μg/m3
PM10: 12.15 μg/m3
Carbon Monoxide: 348.8 μg/m3
Nitrogen Dioxide: 19.15 μg/m3
Sulphur Dioxide: 0.93 μg/m3
Ozone: 78 μg/m3

Astronomical

Sunrise: 5:56 AM
Sun Transit: 12:47 AM
Sunset: 7:38 PM
Daylight: 13 hrs 41 mins
Moonrise: 10:57 AM
Moon Transit: 4:02 PM
Moonset: 8:57 PM
Moon Phase: Waxing Crescent
Moon Illumination: 12.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
3:32 PM - 6:02 PM

Minor Periods

8:27 PM - 9:57 PM
10:27 AM - 11:57 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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