Water Temperature of the Similkameen River in Nighthawk, WA

Current Water Temperature

72.3°F

Measurement Time: Saturday, July 25, 2026, 2:30 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

77.5°F
Sunny
Sunny
66.6°F
76.3°F
26%
SE 6.7 mph
7.7 mph
77.5°F
40.3°F
0 in
0%
6 mi
1007 mbar
3.4

Five Day Weather Forecast

Sunny
Sat
H: 87°F
L: 53°F
Sunny
Sun
H: 81°F
L: 47°F
Sunny
Mon
H: 83°F
L: 48°F
Smoky haze
Tue
H: 86°F
L: 50°F
Sunny
Wed
H: 85°F
L: 48°F

Air Quality

AQI: 2 - Moderate
PM2.5: 23.3 μg/m3
PM10: 24.8 μg/m3
Carbon Monoxide: 144 μg/m3
Nitrogen Dioxide: 2.6 μg/m3
Sulphur Dioxide: 1 μg/m3
Ozone: 101 μg/m3

Astronomical

Sunrise: 5:22 AM
Sun Transit: 1:05 PM
Sunset: 8:47 PM
Daylight: 15 hrs 25 mins
Moonrise: 6:49 PM
Moon Transit: 10:24 PM
Moonset: 1:11 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 85.2%

Best Times for Fishing or Hunting

Major Periods

5:22 AM - 7:52 AM
12:00 AM - 12:00 AM

Minor Periods

6:19 PM - 7:49 PM
12:41 AM - 2:11 AM

Action Rating: 3 out of 5

Red Flag Warning issued July 24 at 10:45PM PDT until July 25 at 10:00PM PDT by NWS Spokane WA

Effective: Fri July 24, 2026, 10:45 PM
Expires: Sat July 25, 2026, 11:00 AM

...RED FLAG WARNING FOR STRONG WINDS AND LOW HUMIDITY SATURDAY FOR MUCH OF THE INLAND NORTHWEST... * Affected Area: Okanogan Highlands and Kettle Mountains (Zone 699), Selkirk Mountains of Northeast Washington (Zone 700) and Methow Valley (Zone 704). * Winds: Southwest winds 10 to 20 mph with gusts around 20 to 30 mph. Winds shifting northwesterly Saturday evening for the Methow Valley. * Relative Humidities: 14 to 25 percent. * Impacts: Gusty winds and low humidity Saturday may lead to rapid fire spread with any new or ongoing fires.

A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior.
Saturday, July 25, 2026

Weather Forecast

Sunny
87.4°F
53.1°F
74.7°F
27%
0 in
1%
0%
18.1 mph
6.3


Air Quality

AQI: 2 - Moderate
PM2.5: 29.07 μg/m3
PM10: 30.62 μg/m3
Carbon Monoxide: 128.08 μg/m3
Nitrogen Dioxide: 4.79 μg/m3
Sulphur Dioxide: 1.06 μg/m3
Ozone: 85.79 μg/m3

Astronomical

Sunrise: 5:22 AM
Sun Transit: 1:05 PM
Sunset: 8:47 PM
Daylight: 15 hrs 25 mins
Moonrise: 6:49 PM
Moon Transit: 10:24 PM
Moonset: 1:11 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 85.2%

Best Times for Fishing or Hunting

Major Periods

5:22 AM - 7:52 AM
12:00 AM - 12:00 AM

Minor Periods

6:19 PM - 7:49 PM
12:41 AM - 2:11 AM

Action Rating: 3 out of 5

Sunday, July 26, 2026

Weather Forecast

Sunny
81°F
47.3°F
64.2°F
44%
0 in
2%
0%
11.2 mph
6.7


Air Quality

AQI: 2 - Moderate
PM2.5: 22.05 μg/m3
PM10: 23.14 μg/m3
Carbon Monoxide: 129.75 μg/m3
Nitrogen Dioxide: 3.8 μg/m3
Sulphur Dioxide: 0.84 μg/m3
Ozone: 77.29 μg/m3

Astronomical

Sunrise: 5:24 AM
Sun Transit: 1:05 PM
Sunset: 8:46 PM
Daylight: 15 hrs 22 mins
Moonrise: 7:36 PM
Moon Transit: 11:15 PM
Moonset: 1:59 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 92.3%

Best Times for Fishing or Hunting

Major Periods

6:14 AM - 8:44 AM
12:00 AM - 12:00 AM

Minor Periods

7:06 PM - 8:36 PM
1:29 AM - 2:59 AM

Action Rating: 3 out of 5

Monday, July 27, 2026

Weather Forecast

Sunny
83.1°F
48.4°F
66.1°F
43%
0 in
1%
0%
8.5 mph
5.3


Air Quality

AQI: 2 - Moderate
PM2.5: 32.67 μg/m3
PM10: 34.37 μg/m3
Carbon Monoxide: 133.25 μg/m3
Nitrogen Dioxide: 4.68 μg/m3
Sulphur Dioxide: 1.13 μg/m3
Ozone: 76.92 μg/m3

Astronomical

Sunrise: 5:25 AM
Sun Transit: 1:05 PM
Sunset: 8:44 PM
Daylight: 15 hrs 20 mins
Moonrise: 8:13 PM
Moon Transit: 12:00 AM
Moonset: 2:58 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
7:05 AM - 9:35 AM

Minor Periods

7:43 PM - 9:13 PM
2:28 AM - 3:58 AM

Action Rating: 3 out of 5

Tuesday, July 28, 2026

Weather Forecast

Smoky haze
85.8°F
50.1°F
67.8°F
35%
0 in
1%
0%
8.5 mph
7.1


Air Quality

AQI: 2 - Moderate
PM2.5: 36.18 μg/m3
PM10: 37.87 μg/m3
Carbon Monoxide: 205.97 μg/m3
Nitrogen Dioxide: 6.72 μg/m3
Sulphur Dioxide: 1.22 μg/m3
Ozone: 69.17 μg/m3

Astronomical

Sunrise: 5:26 AM
Sun Transit: 1:05 PM
Sunset: 8:43 PM
Daylight: 15 hrs 17 mins
Moonrise: 8:41 PM
Moon Transit: 12:05 AM
Moonset: 4:05 AM
Moon Phase: Full
Moon Illumination: 99.7%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
7:55 AM - 10:25 AM

Minor Periods

8:11 PM - 9:41 PM
3:35 AM - 5:05 AM

Action Rating: 4 out of 5

Wednesday, July 29, 2026

Weather Forecast

Sunny
85.1°F
47.7°F
66.4°F
36%
0 in
1%
0%
6.5 mph
7


Air Quality

AQI: 2 - Moderate
PM2.5: 19.88 μg/m3
PM10: 20.55 μg/m3
Carbon Monoxide: 192.67 μg/m3
Nitrogen Dioxide: 10.38 μg/m3
Sulphur Dioxide: 0.93 μg/m3
Ozone: 36.33 μg/m3

Astronomical

Sunrise: 5:27 AM
Sun Transit: 1:05 PM
Sunset: 8:42 PM
Daylight: 15 hrs 14 mins
Moonrise: 9:02 PM
Moon Transit: 12:54 AM
Moonset: 5:16 AM
Moon Phase: Full
Moon Illumination: 99.7%

Best Times for Fishing or Hunting

Major Periods

12:24 AM - 2:54 AM
8:43 AM - 11:13 AM

Minor Periods

8:32 PM - 10:02 PM
4:46 AM - 6:16 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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