Water Temperature of the Similkameen River in Nighthawk, WA

Current Water Temperature

41.0°F

Measurement Time: Thursday, February 5, 2026, 5:30 AM PST

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

48.6°F
Sunny
Sunny
48.8°F
52.3°F
67%
NE 2.2 mph
6.7 mph
52.9°F
45.9°F
0 in
0%
6 mi
1027 mbar
0.9

Five Day Weather Forecast

Sunny
Thu
H: 56°F
L: 37°F
Mist
Fri
H: 37°F
L: 29°F
Freezing fog
Sat
H: 35°F
L: 30°F
Freezing fog
Sun
H: 36°F
L: 30°F
Overcast
Mon
H: 43°F
L: 30°F

Air Quality

AQI: 1 - Good
PM2.5: 13.34 μg/m3
PM10: 14.74 μg/m3
Carbon Monoxide: 195.84 μg/m3
Nitrogen Dioxide: 9.34 μg/m3
Sulphur Dioxide: 2.14 μg/m3
Ozone: 74 μg/m3

Astronomical

Sunrise: 7:23 AM
Sun Transit: 12:12 AM
Sunset: 5:03 PM
Daylight: 9 hrs 40 mins
Moonrise: 10:01 PM
Moon Transit: 2:55 AM
Moonset: 8:49 AM
Moon Phase: Waning Gibbous
Moon Illumination: 83.4%

Best Times for Fishing or Hunting

Major Periods

2:25 AM - 4:55 AM
10:42 AM - 1:12 PM

Minor Periods

9:31 PM - 11:01 PM
8:19 AM - 9:49 AM

Action Rating: 2 out of 5

Special Weather Statement issued February 5 at 2:46AM PST by NWS Spokane WA

Effective: Thu February 5, 2026, 2:46 AM
Expires: Thu February 5, 2026, 8:00 AM

Areas of patchy fog will continue through the early morning Thursday. Fog will be locally dense, reducing the visibility to a quarter mile or less. Drivers should be prepared for sudden restrictions of visibility and allow for extra following distance. With temperatures near or below freezing, frost may form on roads, sidewalks, and parking lots. Watch for icy patches, especially in outlying areas and untreated surfaces.


Dense Fog Advisory issued February 5 at 8:15AM PST until February 5 at 12:00PM PST by NWS Spokane WA

Effective: Thu February 5, 2026, 8:15 AM
Expires: Thu February 5, 2026, 12:00 PM

* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Badger Mountain Road, Wilbur, Odessa, Mansfield, Waterville, Coulee City, Creston, Harrington, Ritzville, and Grand Coulee. * WHEN...Until noon PST today. * IMPACTS...Low visibility could make driving conditions hazardous.

If driving, slow down, use your headlights, and leave plenty of distance ahead of you.


Dense Fog Advisory issued February 5 at 8:15AM PST until February 5 at 12:00PM PST by NWS Spokane WA

Effective: Thu February 5, 2026, 8:15 AM
Expires: Thu February 5, 2026, 12:00 PM

* WHAT...Visibility down to one quarter mile or less in dense fog. * WHERE...Methow, Conconully, Twisp, Loup Loup Pass, Winthrop, and Mazama. * WHEN...Until noon PST today. * IMPACTS...Low visibility could make driving conditions hazardous. * ADDITIONAL DETAILS...Temperatures near freezing may also result patchy freezing fog with slippery travel this morning.

If driving, slow down, use your headlights, and leave plenty of distance ahead of you.
Thursday, February 5, 2026

Weather Forecast

Sunny
55.6°F
36.7°F
44.6°F
66%
0 in
0%
0%
3.1 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 9.54 μg/m3
PM10: 11.14 μg/m3
Carbon Monoxide: 179.88 μg/m3
Nitrogen Dioxide: 4.46 μg/m3
Sulphur Dioxide: 1.34 μg/m3
Ozone: 84.16 μg/m3

Astronomical

Sunrise: 7:23 AM
Sun Transit: 12:12 AM
Sunset: 5:03 PM
Daylight: 9 hrs 40 mins
Moonrise: 10:01 PM
Moon Transit: 2:55 AM
Moonset: 8:49 AM
Moon Phase: Waning Gibbous
Moon Illumination: 83.4%

Best Times for Fishing or Hunting

Major Periods

2:25 AM - 4:55 AM
10:42 AM - 1:12 PM

Minor Periods

9:31 PM - 11:01 PM
8:19 AM - 9:49 AM

Action Rating: 2 out of 5

Friday, February 6, 2026

Weather Forecast

Mist
37.4°F
28.9°F
34.1°F
87%
0 in
0%
0%
3.4 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 12.09 μg/m3
PM10: 13.67 μg/m3
Carbon Monoxide: 180.44 μg/m3
Nitrogen Dioxide: 5.5 μg/m3
Sulphur Dioxide: 1.78 μg/m3
Ozone: 85.96 μg/m3

Astronomical

Sunrise: 7:21 AM
Sun Transit: 12:12 AM
Sunset: 5:04 PM
Daylight: 9 hrs 43 mins
Moonrise: 11:12 PM
Moon Transit: 3:37 AM
Moonset: 9:02 AM
Moon Phase: Waning Gibbous
Moon Illumination: 74.1%

Best Times for Fishing or Hunting

Major Periods

3:07 AM - 5:37 AM
11:25 AM - 1:55 PM

Minor Periods

12:00 AM - 12:00 AM
8:32 AM - 10:02 AM

Action Rating: 2 out of 5

Saturday, February 7, 2026

Weather Forecast

Freezing fog
34.9°F
29.7°F
32.7°F
96%
0 in
0%
0%
4.5 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 11.94 μg/m3
PM10: 13.12 μg/m3
Carbon Monoxide: 195.2 μg/m3
Nitrogen Dioxide: 4.11 μg/m3
Sulphur Dioxide: 1.32 μg/m3
Ozone: 73.8 μg/m3

Astronomical

Sunrise: 7:20 AM
Sun Transit: 12:12 AM
Sunset: 5:06 PM
Daylight: 9 hrs 47 mins
Moonrise: 12:12 AM
Moon Transit: 4:20 AM
Moonset: 9:17 AM
Moon Phase: Waning Gibbous
Moon Illumination: 63.7%

Best Times for Fishing or Hunting

Major Periods

3:50 AM - 6:20 AM
12:07 AM - 2:37 PM

Minor Periods

8:47 AM - 10:17 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Sunday, February 8, 2026

Weather Forecast

Freezing fog
36.3°F
29.8°F
32.8°F
91%
0.44 in
89%
0%
5.4 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 6.09 μg/m3
PM10: 6.42 μg/m3
Carbon Monoxide: 191.29 μg/m3
Nitrogen Dioxide: 4.26 μg/m3
Sulphur Dioxide: 1.24 μg/m3
Ozone: 66.8 μg/m3

Astronomical

Sunrise: 7:18 AM
Sun Transit: 12:12 AM
Sunset: 5:08 PM
Daylight: 9 hrs 50 mins
Moonrise: 12:24 AM
Moon Transit: 5:04 AM
Moonset: 9:34 AM
Moon Phase: Last Quarter
Moon Illumination: 52.5%

Best Times for Fishing or Hunting

Major Periods

4:34 AM - 7:04 AM
12:52 AM - 3:22 PM

Minor Periods

9:04 AM - 10:34 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Monday, February 9, 2026

Weather Forecast

Overcast
42.7°F
30.2°F
34.8°F
73%
0 in
0%
0%
4.5 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 1.85 μg/m3
PM10: 1.91 μg/m3
Carbon Monoxide: 235.06 μg/m3
Nitrogen Dioxide: 5.36 μg/m3
Sulphur Dioxide: 1.2 μg/m3
Ozone: 61 μg/m3

Astronomical

Sunrise: 7:16 AM
Sun Transit: 12:12 AM
Sunset: 5:09 PM
Daylight: 9 hrs 53 mins
Moonrise: 1:35 AM
Moon Transit: 5:49 AM
Moonset: 9:56 AM
Moon Phase: Last Quarter
Moon Illumination: 41.2%

Best Times for Fishing or Hunting

Major Periods

5:19 AM - 7:49 AM
1:38 PM - 4:08 PM

Minor Periods

9:26 AM - 10:56 AM
1:05 AM - 2:35 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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