Water Temperature of the Similkameen River in Nighthawk, WA
Current Water Temperature
Measurement Time: Monday, August 25, 2025, 1:30 PM PDT
Temperature Locations
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Local Points of Interest
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Station Name: SIMILKAMEEN RIVER NEAR NIGHTHAWK, WA
Data Source: Water Data - usgc.gov
Elevation Above Sea Level: 1,165 feet / 355 meters
Nearest Address:
2672 Loomis Oroville Rd
Nighthawk, WA 98827
Okanogan County
GPS Coordinates: 48.98460109, -119.6184098
Nearby Water Temperatures
Osoyoos Lake, Oroville, WA (8.3 mi)Okanogan River, Oroville, WA (9.7 mi)
Andrews Creek, Mazama, WA (26.4 mi)
Okanogan River, Malott, WA (48.8 mi)
Ruby Creek, Newhalem, WA (64.7 mi)
Columbia River, Bridgeport, WA (67.6 mi)
Big Beaver Creek, Diablo, WA (67.6 mi)
Columbia River, Azwell, WA (72.5 mi)
Skagit River, Newhalem, WA (77.1 mi)
Bacon Creek, Marblemount, WA (85.2 mi)
Cascade River, Marblemount, WA (87.8 mi)
Skagit River, Marblemount, WA (88.2 mi)
Sauk River, Concrete, WA (97.0 mi)
North Fork Nooksack River, Glacier, WA (101.1 mi)
Sauk River, Darrington, WA (101.7 mi)
Weather for Nighthawk, Washington
Current Weather

Humidity: 30%
Feels Like: 82°F
Wind: NNE 3.8 mph
Wind Gusts: 8 mph
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 6 mi
UV Index: 0
Five Day Weather Forecast

Mon
H: 96°F
L: 60°F

Tue
H: 96°F
L: 61°F

Wed
H: 93°F
L: 60°F

Thu
H: 93°F
L: 63°F

Fri
H: 88°F
L: 59°F
Air Quality
Nitrogen Dioxide: 10.85 μg/m3
Sulphur Dioxide: 1.1 μg/m3
Ozone: 79 μg/m3
Astronomical
Sun Transit: 1:00 PM
Sunset: 7:54 PM
Daylight: 13 hrs 48 mins
Moon Transit: 2:53 PM
Moonset: 8:42 PM
Moon Phase: New
Moon Illumination: 1.9%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM2:23 PM - 4:53 PM
Minor Periods
8:12 PM - 9:42 PM8:21 AM - 9:51 AM
Action Rating: 4 out of 5
Heat Advisory issued August 25 at 2:42PM PDT until August 27 at 9:00PM PDT by NWS Spokane WA
Effective: Mon August 25, 2025, 2:42 PM
Expires: Tue August 26, 2025, 3:00 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 * WHERE...Coeur d'Alene, Potlatch, Fruitland, Conconully, Rosalia, Colville, Cloverland Road, Pullman, Newport, Wauconda, Kamiah, Nezperce, Mountain Road, Winchester, Northport, Downtown Spokane, Genesee, Boulder Creek Road, Methow, Republic, Highway 20 Wauconda Summit, Oakesdale, Davenport, Metaline Falls, Ione, Loup Loup Pass, Chesaw Road, Airway Heights, Mazama, Chewelah, Uniontown, Anatone, Flowery Trail Road, Cheney, Metaline, Tiger, Sherman Pass, Rockford, Twisp, Inchelium, Fairfield, Kettle Falls, Craigmont, Tekoa, Plummer, Spokane Valley, Orin-Rice Road, Moscow, Soldiers Meadow Road, Post Falls, Hayden, Peola, Winthrop, Worley, La Crosse, Springdale-Hunters Road, Colfax, and Deer Park. * WHEN...Until 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.
Extreme Heat Warning issued August 25 at 2:42PM PDT until August 27 at 9:00PM PDT by NWS Spokane WA
Effective: Mon August 25, 2025, 2:42 PM
Expires: Tue August 26, 2025, 3:00 PM
* WHAT...Hot temperatures. High temperatures 95 to 102 degrees. Limited overnight relief with low temperatures 61 to 72. * WHERE...Chelan, Coulee City, Leavenworth, Lewiston, Pomeroy, Brewster, Nespelem, Okanogan, Grand Coulee, Gifford, Othello, Cashmere, Pangborn Airport, Odessa, Wilbur, Peck, Ritzville, Omak, Quincy, Bridgeport, Plain, Culdesac, Moses Lake, Ephrata, Number 1 Canyon, Entiat, Tonasket, Alpowa Summit, Harrington, Mansfield, Clarkston, Creston, Badger Mountain Road, Number 2 Canyon, Oroville, Wenatchee, Lewiston Grade, Disautel Pass, Lapwai, and Waterville. * WHEN...Until 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. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. 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.
Heat Advisory issued August 25 at 2:42PM PDT until August 27 at 9:00PM PDT by NWS Spokane WA
Effective: Mon August 25, 2025, 2:42 PM
Expires: Tue August 26, 2025, 3:00 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 * WHERE...Coeur d'Alene, Potlatch, Fruitland, Conconully, Rosalia, Colville, Cloverland Road, Pullman, Newport, Wauconda, Kamiah, Nezperce, Mountain Road, Winchester, Northport, Downtown Spokane, Genesee, Boulder Creek Road, Methow, Republic, Highway 20 Wauconda Summit, Oakesdale, Davenport, Metaline Falls, Ione, Loup Loup Pass, Chesaw Road, Airway Heights, Mazama, Chewelah, Uniontown, Anatone, Flowery Trail Road, Cheney, Metaline, Tiger, Sherman Pass, Rockford, Twisp, Inchelium, Fairfield, Kettle Falls, Craigmont, Tekoa, Plummer, Spokane Valley, Orin-Rice Road, Moscow, Soldiers Meadow Road, Post Falls, Hayden, Peola, Winthrop, Worley, La Crosse, Springdale-Hunters Road, Colfax, and Deer Park. * WHEN...Until 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.
Weather Forecast
Average Temperature: 77.9°F
Average Humidity: 27%
Wind: 4.3 mph
UV Index: 1.8
Air Quality
Nitrogen Dioxide: 7.08 μg/m3
Sulphur Dioxide: 1.1 μg/m3
Ozone: 98.84 μg/m3
Astronomical
Sun Transit: 1:00 PM
Sunset: 7:54 PM
Daylight: 13 hrs 48 mins
Moon Transit: 2:53 PM
Moonset: 8:42 PM
Moon Phase: New
Moon Illumination: 1.9%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM2:23 PM - 4:53 PM
Minor Periods
8:12 PM - 9:42 PM8:21 AM - 9:51 AM
Action Rating: 4 out of 5
Weather Forecast
Average Temperature: 78.1°F
Average Humidity: 27%
Wind: 5.1 mph
UV Index: 1.6
Air Quality
Nitrogen Dioxide: 6.46 μg/m3
Sulphur Dioxide: 1.02 μg/m3
Ozone: 98.56 μg/m3
Astronomical
Sun Transit: 1:00 PM
Sunset: 7:52 PM
Daylight: 13 hrs 45 mins
Moon Transit: 3:33 PM
Moonset: 8:55 PM
Moon Phase: Waxing Crescent
Moon Illumination: 6.1%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM3:03 PM - 5:33 PM
Minor Periods
8:25 PM - 9:55 PM9:30 AM - 11:00 AM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: 76.6°F
Average Humidity: 28%
Wind: 11.6 mph
UV Index: 1.4
Air Quality
Nitrogen Dioxide: 7.91 μg/m3
Sulphur Dioxide: 1.03 μg/m3
Ozone: 99.56 μg/m3
Astronomical
Sun Transit: 1:00 PM
Sunset: 7:50 PM
Daylight: 13 hrs 41 mins
Moon Transit: 4:14 PM
Moonset: 9:09 PM
Moon Phase: Waxing Crescent
Moon Illumination: 12.6%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM3:44 PM - 6:14 PM
Minor Periods
8:39 PM - 10:09 PM10:40 AM - 12:10 AM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: 75.4°F
Average Humidity: 41%
Wind: 8.1 mph
UV Index: 0.7
Air Quality
Nitrogen Dioxide: 7.42 μg/m3
Sulphur Dioxide: 1.06 μg/m3
Ozone: 101.12 μg/m3
Astronomical
Sun Transit: 1:00 PM
Sunset: 7:48 PM
Daylight: 13 hrs 38 mins
Moon Transit: 4:57 PM
Moonset: 9:26 PM
Moon Phase: Waxing Crescent
Moon Illumination: 21.1%
Best Times for Fishing or Hunting
Major Periods
12:02 AM - 2:32 AM4:27 PM - 6:57 PM
Minor Periods
8:56 PM - 10:26 PM11:50 AM - 1:20 PM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: 70.7°F
Average Humidity: 47%
Wind: 4.7 mph
UV Index: 1.4
Air Quality
Nitrogen Dioxide: 11.23 μg/m3
Sulphur Dioxide: 0.71 μg/m3
Ozone: 98.23 μg/m3
Astronomical
Sun Transit: 1:00 PM
Sunset: 7:46 PM
Daylight: 13 hrs 34 mins
Moon Transit: 5:43 PM
Moonset: 9:48 PM
Moon Phase: Waxing Crescent
Moon Illumination: 31.0%
Best Times for Fishing or Hunting
Major Periods
12:45 AM - 3:15 AM5:13 PM - 7:43 PM
Minor Periods
9:18 PM - 10:48 PM1:01 PM - 2:31 PM
Action Rating: 3 out of 5