Water Temperature of the Similkameen River in Nighthawk, WA

Current Water Temperature

71.4°F

Measurement Time: Tuesday, July 7, 2026, 12:30 PM 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

85.6°F
Partly Cloudy
Partly Cloudy
76.1°F
81.9°F
21%
S 4.3 mph
5.3 mph
85.6°F
41.3°F
0 in
51%
6 mi
1008 mbar
0.4

Five Day Weather Forecast

Sunny
Tue
H: 89°F
L: 60°F
Sunny
Wed
H: 83°F
L: 50°F
Sunny
Thu
H: 82°F
L: 45°F
Sunny
Fri
H: 79°F
L: 47°F
Sunny
Sat
H: 83°F
L: 47°F

Air Quality

AQI: 1 - Good
PM2.5: 8.4 μg/m3
PM10: 9.3 μg/m3
Carbon Monoxide: 115 μg/m3
Nitrogen Dioxide: 0.9 μg/m3
Sulphur Dioxide: 0.6 μg/m3
Ozone: 124 μg/m3

Astronomical

Sunrise: 5:03 AM
Sun Transit: 1:03 PM
Sunset: 9:03 PM
Daylight: 16 hrs mins
Moonrise: 12:56 AM
Moon Transit: 6:36 AM
Moonset: 1:34 PM
Moon Phase: Last Quarter
Moon Illumination: 37.3%

Best Times for Fishing or Hunting

Major Periods

6:06 AM - 8:36 AM
2:25 PM - 4:55 PM

Minor Periods

1:04 PM - 2:34 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Red Flag Warning issued July 6 at 10:51PM PDT until July 8 at 10:00PM PDT by NWS Spokane WA

Effective: Mon July 6, 2026, 10:51 PM
Expires: Tue July 7, 2026, 2:00 PM

...HOT, DRY, AND BREEZY CONDITIONS ACROSS CENTRAL AND EASTERN WASHINGTON TUESDAY AND WEDNESDAY... . A dry cold front will approach Tuesday afternoon and pass through the area Tuesday night into Wednesday. Tuesday will be very warm and dry with temperatures in the 90s. Southerly winds will increase across Central WA between Moses Lake and Oroville. Late Tuesday afternoon and early evening, westerly winds will increase through the Cascade Gaps. Winds will remain breezy Tuesday night with fair to poor humidity recoveries. Gusty west to southwest winds will expand across Eastern Washington on Wednesday. Temperatures on Wednesday will be in the mid 90s with some local triple digit highs. * Affected Area: Methow Valley (Zone 704). * Winds: West to northwest 10 to 20 mph with gusts up to 30 mph. * Relative Humidities: 16 to 23 percent. * Impacts: Rapid fire spread is likely 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.


Red Flag Warning issued July 7 at 1:22PM PDT until July 8 at 10:00PM PDT by NWS Spokane WA

Effective: Tue July 7, 2026, 1:22 PM
Expires: Tue July 7, 2026, 10:30 PM

...HOT, DRY, AND BREEZY CONDITIONS ACROSS CENTRAL WASHINGTON TUESDAY THEN CENTRAL AND EASTERN WASHINGTON WEDNESDAY... . A dry cold front is nearing the WA Coast this afternoon and will pass through the area Tuesday night into Wednesday. Southerly winds are increasing across Central WA between Moses Lake and Oroville. Late Tuesday afternoon and early evening, westerly winds will increase through the Cascade Gaps around Wenatchee and Chelan. Winds will remain breezy Tuesday night with fair to poor humidity recoveries. Gusty west to southwest winds will expand across Eastern Washington on Wednesday. Temperatures Tuesday will be in the 90s then upper 80s to low 90s Wednesday. * Affected Area: Methow Valley (Zone 704). * Winds: Northwest 10 to 20 mph with gusts up to 30 mph. * Relative Humidities: 17 to 24 percent. * Impacts: Rapid fire spread is likely 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.


Red Flag Warning issued July 6 at 10:51PM PDT until July 8 at 10:00PM PDT by NWS Spokane WA

Effective: Mon July 6, 2026, 10:51 PM
Expires: Tue July 7, 2026, 2:00 PM

...HOT, DRY, AND BREEZY CONDITIONS ACROSS CENTRAL AND EASTERN WASHINGTON TUESDAY AND WEDNESDAY... . A dry cold front will approach Tuesday afternoon and pass through the area Tuesday night into Wednesday. Tuesday will be very warm and dry with temperatures in the 90s. Southerly winds will increase across Central WA between Moses Lake and Oroville. Late Tuesday afternoon and early evening, westerly winds will increase through the Cascade Gaps. Winds will remain breezy Tuesday night with fair to poor humidity recoveries. Gusty west to southwest winds will expand across Eastern Washington on Wednesday. Temperatures on Wednesday will be in the mid 90s with some local triple digit highs. * Affected Area: Foothills of Northeast Washington (Zone 701), Colville Reservation (Zone 702), Eastern Columbia Basin - Palouse -Spokane Area (Zone 708) and Lower Palouse -Snake River (Zone 709). * Winds: Southwest 15 to 20 mph with gusts up to 30 mph. * Relative Humidities: 12 to 20 percent. * Impacts: Rapid fire spread is likely 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.


Red Flag Warning issued July 7 at 1:22PM PDT until July 8 at 10:00PM PDT by NWS Spokane WA

Effective: Tue July 7, 2026, 1:22 PM
Expires: Tue July 7, 2026, 10:30 PM

...HOT, DRY, AND BREEZY CONDITIONS ACROSS CENTRAL WASHINGTON TUESDAY THEN CENTRAL AND EASTERN WASHINGTON WEDNESDAY... . A dry cold front is nearing the WA Coast this afternoon and will pass through the area Tuesday night into Wednesday. Southerly winds are increasing across Central WA between Moses Lake and Oroville. Late Tuesday afternoon and early evening, westerly winds will increase through the Cascade Gaps around Wenatchee and Chelan. Winds will remain breezy Tuesday night with fair to poor humidity recoveries. Gusty west to southwest winds will expand across Eastern Washington on Wednesday. Temperatures Tuesday will be in the 90s then upper 80s to low 90s Wednesday. * Affected Area: Foothills of Northeast Washington (Zone 701), Colville Reservation (Zone 702), Eastern Columbia Basin - Palouse -Spokane Area (Zone 708) and Lower Palouse-Snake River (Zone 709). * Winds: Southwest 15 to 20 mph with gusts up to 30 mph. * Relative Humidities: 13 to 20 percent. * Impacts: Rapid fire spread is likely 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.


Tuesday, July 7, 2026

Weather Forecast

Sunny
89.4°F
59.6°F
77.4°F
24%
0 in
1%
0%
10.5 mph
8.1


Air Quality

AQI: 1 - Good
PM2.5: 7.85 μg/m3
PM10: 8.45 μg/m3
Carbon Monoxide: 112.38 μg/m3
Nitrogen Dioxide: 3.27 μg/m3
Sulphur Dioxide: 0.55 μg/m3
Ozone: 104.92 μg/m3

Astronomical

Sunrise: 5:03 AM
Sun Transit: 1:03 PM
Sunset: 9:03 PM
Daylight: 16 hrs mins
Moonrise: 12:56 AM
Moon Transit: 6:36 AM
Moonset: 1:34 PM
Moon Phase: Last Quarter
Moon Illumination: 37.3%

Best Times for Fishing or Hunting

Major Periods

6:06 AM - 8:36 AM
2:25 PM - 4:55 PM

Minor Periods

1:04 PM - 2:34 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Wednesday, July 8, 2026

Weather Forecast

Sunny
83.4°F
50°F
67.2°F
33%
0 in
1%
0%
10.7 mph
5.5


Air Quality

AQI: 1 - Good
PM2.5: 2.85 μg/m3
PM10: 3.28 μg/m3
Carbon Monoxide: 92.38 μg/m3
Nitrogen Dioxide: 1.95 μg/m3
Sulphur Dioxide: 0.48 μg/m3
Ozone: 79.25 μg/m3

Astronomical

Sunrise: 5:04 AM
Sun Transit: 1:03 PM
Sunset: 9:03 PM
Daylight: 15 hrs 59 mins
Moonrise: 12:12 AM
Moon Transit: 7:24 AM
Moonset: 2:55 PM
Moon Phase: Last Quarter
Moon Illumination: 26.8%

Best Times for Fishing or Hunting

Major Periods

6:54 AM - 9:24 AM
3:14 PM - 5:44 PM

Minor Periods

2:25 PM - 3:55 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Thursday, July 9, 2026

Weather Forecast

Sunny
82.1°F
44.5°F
63.9°F
37%
0 in
1%
0%
7.4 mph
7.7


Air Quality

AQI: 1 - Good
PM2.5: 1.2 μg/m3
PM10: 1.54 μg/m3
Carbon Monoxide: 88.63 μg/m3
Nitrogen Dioxide: 1.8 μg/m3
Sulphur Dioxide: 0.45 μg/m3
Ozone: 58.92 μg/m3

Astronomical

Sunrise: 5:05 AM
Sun Transit: 1:03 PM
Sunset: 9:02 PM
Daylight: 15 hrs 57 mins
Moonrise: 12:32 AM
Moon Transit: 8:16 AM
Moonset: 4:20 PM
Moon Phase: Last Quarter
Moon Illumination: 17.4%

Best Times for Fishing or Hunting

Major Periods

7:46 AM - 10:16 AM
4:07 PM - 6:37 PM

Minor Periods

3:50 PM - 5:20 PM
12:02 AM - 1:32 AM

Action Rating: 2 out of 5

Friday, July 10, 2026

Weather Forecast

Sunny
78.7°F
46.7°F
63.9°F
45%
0 in
2%
0%
7.4 mph
8.1


Air Quality

AQI: 1 - Good
PM2.5: 2.17 μg/m3
PM10: 2.73 μg/m3
Carbon Monoxide: 90.33 μg/m3
Nitrogen Dioxide: 2.13 μg/m3
Sulphur Dioxide: 0.46 μg/m3
Ozone: 61.88 μg/m3

Astronomical

Sunrise: 5:06 AM
Sun Transit: 1:03 PM
Sunset: 9:02 PM
Daylight: 15 hrs 56 mins
Moonrise: 12:59 AM
Moon Transit: 9:13 AM
Moonset: 5:46 PM
Moon Phase: Waning Crescent
Moon Illumination: 9.7%

Best Times for Fishing or Hunting

Major Periods

8:43 AM - 11:13 AM
5:07 PM - 7:37 PM

Minor Periods

5:16 PM - 6:46 PM
12:29 AM - 1:59 AM

Action Rating: 2 out of 5

Saturday, July 11, 2026

Weather Forecast

Sunny
82.9°F
47.1°F
65°F
43%
0 in
1%
0%
12.5 mph
8.2


Air Quality

AQI: 1 - Good
PM2.5: 2.92 μg/m3
PM10: 3.63 μg/m3
Carbon Monoxide: 95.33 μg/m3
Nitrogen Dioxide: 6.17 μg/m3
Sulphur Dioxide: 0.33 μg/m3
Ozone: 46.33 μg/m3

Astronomical

Sunrise: 5:07 AM
Sun Transit: 1:04 PM
Sunset: 9:01 PM
Daylight: 15 hrs 54 mins
Moonrise: 1:36 AM
Moon Transit: 10:16 AM
Moonset: 7:07 PM
Moon Phase: Waning Crescent
Moon Illumination: 4.1%

Best Times for Fishing or Hunting

Major Periods

6:11 PM - 8:41 PM
9:46 AM - 12:16 AM

Minor Periods

6:37 PM - 8:07 PM
1:06 AM - 2:36 AM

Action Rating: 3 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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