Water Temperature of the Similkameen River in Nighthawk, WA

Current Water Temperature

47.5°F

Measurement Time: Thursday, May 14, 2026, 4:30 AM PDT

Temperature Locations

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Local Points of Interest

Ellemeham Wildlife Area

Similkameen River

Station Name: SIMILKAMEEN RIVER NEAR NIGHTHAWK, WA
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 1,165 feet

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 mi)
North Fork Nooksack River, Glacier, WA (101.1 mi)
Sauk River, Darrington, WA (101.7 mi)

Weather for Nighthawk, Washington

Current Weather

60.6°F
Sunny
Sunny
60.6°F
60.6°F
33%
SSE 4.5 mph
5.1 mph
60.6°F
31.9°F
0 in
6%
6 mi
1011 mbar
5.6

Five Day Weather Forecast

Sunny
Thu
H: 62°F
L: 37°F
Patchy rain nearby
Fri
H: 52°F
L: 31°F
Patchy rain nearby
Sat
H: 53°F
L: 30°F
Patchy rain nearby
Sun
H: 58°F
L: 29°F
Patchy rain nearby
Mon
H: 59°F
L: 34°F

Air Quality

AQI: 1 - Good
PM2.5: 2.84 μg/m3
PM10: 4.44 μg/m3
Carbon Monoxide: 128.84 μg/m3
Nitrogen Dioxide: 2.04 μg/m3
Sulphur Dioxide: 1.24 μg/m3
Ozone: 97 μg/m3

Astronomical

Sunrise: 5:17 AM
Sun Transit: 12:54 AM
Sunset: 8:34 PM
Daylight: 15 hrs 16 mins
Moonrise: 3:48 AM
Moon Transit: 10:54 AM
Moonset: 6:22 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.7%

Best Times for Fishing or Hunting

Major Periods

6:45 PM - 9:15 PM
10:24 AM - 12:54 AM

Minor Periods

5:52 PM - 7:22 PM
3:18 AM - 4:48 AM

Action Rating: 3 out of 5

Frost Advisory issued May 14 at 10:58AM PDT until May 15 at 8:00AM PDT by NWS Spokane WA

Effective: Thu May 14, 2026, 10:58 AM
Expires: Fri May 15, 2026, 8:00 AM

* WHAT...Low temperatures between 33 and 37 will result in frost formation. * WHERE...Metaline Falls, Wauconda, Colville, Sherman Pass, Republic, Orin-Rice Road, Winthrop, Northport, Newport, Inchelium, Twisp, Boulder Creek Road, Ione, Methow, Tiger, Metaline, Chewelah, Fruitland, Chesaw Road, Flowery Trail Road, Deer Park, Kettle Falls, Conconully, Springdale-Hunters Road, Mazama, Loup Loup Pass, and Highway 20 Wauconda Summit. * WHEN...From 2 AM to 8 AM PDT Friday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.

Take steps now to protect tender plants from the cold.
Thursday, May 14, 2026

Weather Forecast

Sunny
62.2°F
36.9°F
51.5°F
45%
0 in
0%
0%
11.9 mph
5.6


Air Quality

AQI: 1 - Good
PM2.5: 1.66 μg/m3
PM10: 1.96 μg/m3
Carbon Monoxide: 130.56 μg/m3
Nitrogen Dioxide: 2.73 μg/m3
Sulphur Dioxide: 1.17 μg/m3
Ozone: 83.04 μg/m3

Astronomical

Sunrise: 5:17 AM
Sun Transit: 12:54 AM
Sunset: 8:34 PM
Daylight: 15 hrs 16 mins
Moonrise: 3:48 AM
Moon Transit: 10:54 AM
Moonset: 6:22 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.7%

Best Times for Fishing or Hunting

Major Periods

6:45 PM - 9:15 PM
10:24 AM - 12:54 AM

Minor Periods

5:52 PM - 7:22 PM
3:18 AM - 4:48 AM

Action Rating: 3 out of 5

Friday, May 15, 2026

Weather Forecast

Patchy rain nearby
51.5°F
30.8°F
41.4°F
63%
0.13 in
85%
0%
6 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 1.87 μg/m3
PM10: 2.46 μg/m3
Carbon Monoxide: 126.56 μg/m3
Nitrogen Dioxide: 2.23 μg/m3
Sulphur Dioxide: 1.22 μg/m3
Ozone: 83.8 μg/m3

Astronomical

Sunrise: 5:16 AM
Sun Transit: 12:54 AM
Sunset: 8:35 PM
Daylight: 15 hrs 19 mins
Moonrise: 4:08 AM
Moon Transit: 11:49 AM
Moonset: 7:51 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

7:41 PM - 10:11 PM
11:19 AM - 1:49 PM

Minor Periods

7:21 PM - 8:51 PM
3:38 AM - 5:08 AM

Action Rating: 5 out of 5

Saturday, May 16, 2026

Weather Forecast

Patchy rain nearby
52.5°F
29.7°F
41.6°F
57%
0.06 in
83%
0%
7.4 mph
2


Air Quality

AQI: 1 - Good
PM2.5: 1.7 μg/m3
PM10: 2.06 μg/m3
Carbon Monoxide: 132.89 μg/m3
Nitrogen Dioxide: 2.54 μg/m3
Sulphur Dioxide: 1.5 μg/m3
Ozone: 81.84 μg/m3

Astronomical

Sunrise: 5:14 AM
Sun Transit: 12:54 AM
Sunset: 8:36 PM
Daylight: 15 hrs 22 mins
Moonrise: 4:36 AM
Moon Transit: 12:49 AM
Moonset: 9:21 PM
Moon Phase: New
Moon Illumination: 2.0%

Best Times for Fishing or Hunting

Major Periods

8:43 PM - 11:13 PM
12:19 AM - 2:49 PM

Minor Periods

8:51 PM - 10:21 PM
4:06 AM - 5:36 AM

Action Rating: 6 out of 5

Sunday, May 17, 2026

Weather Forecast

Patchy rain nearby
57.8°F
28.9°F
43.4°F
64%
0.13 in
87%
0%
5.8 mph
2


Air Quality

AQI: 1 - Good
PM2.5: 1.78 μg/m3
PM10: 1.89 μg/m3
Carbon Monoxide: 142.93 μg/m3
Nitrogen Dioxide: 2.69 μg/m3
Sulphur Dioxide: 1.34 μg/m3
Ozone: 78.84 μg/m3

Astronomical

Sunrise: 5:13 AM
Sun Transit: 12:54 AM
Sunset: 8:38 PM
Daylight: 15 hrs 24 mins
Moonrise: 5:14 AM
Moon Transit: 1:54 PM
Moonset: 10:45 PM
Moon Phase: New
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
1:24 PM - 3:54 PM

Minor Periods

10:15 PM - 11:45 PM
4:44 AM - 6:14 AM

Action Rating: 4 out of 5

Monday, May 18, 2026

Weather Forecast

Patchy rain nearby
58.6°F
33.6°F
46.2°F
65%
0.05 in
87%
0%
6.3 mph
2


Air Quality

AQI: 1 - Good
PM2.5: 2 μg/m3
PM10: 2.05 μg/m3
Carbon Monoxide: 150.92 μg/m3
Nitrogen Dioxide: 5.1 μg/m3
Sulphur Dioxide: 1.36 μg/m3
Ozone: 64.46 μg/m3

Astronomical

Sunrise: 5:12 AM
Sun Transit: 12:54 AM
Sunset: 8:39 PM
Daylight: 15 hrs 27 mins
Moonrise: 6:08 AM
Moon Transit: 3:01 PM
Moonset: 11:53 PM
Moon Phase: New
Moon Illumination: 2.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:31 PM - 5:01 PM

Minor Periods

12:00 AM - 12:00 AM
5:38 AM - 7:08 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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