What is the average water temperature in Washington?

The current average water temperature across Washington's monitored water bodies is 59.7°F.

🌡️

Washington Water Temperatures

Q: What is the warmest lake in Washington today?

Chewuch River At Winthrop, Wa at 149.4°F.

Current lake & river temperatures in Washington — updated daily from USGS sensors.

With Data

59.7°F

State Avg

149.4°F

Warmest

149.4°F

Warmest

Chewuch River At Winthrop, Wa

59.7°F

State Average

100 water bodies

33.4°F

Coldest

Granger Drain At Granger, Wa

🏊

Swimming Conditions

🚫 Too cold for most swimmers

Based on avg 59.7°F

🎣

Fishing Conditions

🎣 Good — trout, walleye, bass

Based on avg 59.7°F

Washington — Ranked by Temperature

91 with data

#	Water Body	°F	°C	Condition	🏊	Date
1	Chewuch River At Winthrop, Wa River	149.4°	65.2°	🔥 Hot	🏊 Excellent	Aug 26
2	Okanogan River Nr Wakefield Br South Of Malott, Wa River	76.6°	24.8°	☀️ Warm	✅ Good	Jul 27
3	Okanogan River At Malott, Wa River	75.9°	24.4°	☀️ Warm	✅ Good	Jul 26
4	Okanogan River At Oroville, Wa River	75°	23.9°	☀️ Warm	✅ Good	Jul 18
5	Osoyoos Lake Near Oroville, Wa Lake	75°	23.9°	☀️ Warm	✅ Good	Jul 26
6	Boundary Reservoir At Forebay Nr Metaline Falls Reservoir	74.5°	23.6°	🌤️ Comfortable	✅ Good	Jul 26
7	Pend Oreille River At International Boundary River	74.1°	23.4°	🌤️ Comfortable	✅ Good	Jul 26
8	Sanpoil River Above Jack Creek At Keller, Wa River	72.5°	22.5°	🌤️ Comfortable	✅ Good	Jul 26
9	Columbia River, Right Bank, Near Cliffs, Wa River	71.6°	22°	🌤️ Comfortable	⚠️ Brisk	Jul 27
10	Columbia River At Bonneville Dam Forebay, Wa River	71.4°	21.9°	🌤️ Comfortable	⚠️ Brisk	Jul 27
11	Columbia River At Cascade Island, Wa River	71.2°	21.8°	🌤️ Comfortable	⚠️ Brisk	Jul 27
12	Columbia River At John Day Dam Navigation Lock, Wa River	71.2°	21.8°	🌤️ Comfortable	⚠️ Brisk	Jul 27
13	Columbia River At The Dalles Dam Forebay, Wa River	71.1°	21.7°	🌤️ Comfortable	⚠️ Brisk	Jul 27
14	Chehalis River At Porter, Wa River	70.7°	21.5°	🌤️ Comfortable	⚠️ Brisk	Jul 31
15	Similkameen River Near Nighthawk, Wa River	70.2°	21.2°	🌤️ Comfortable	⚠️ Brisk	Jul 26
16	Wenatchee River At Monitor, Wa River	70°	21.1°	🌤️ Comfortable	⚠️ Brisk	Jul 26
17	Methow River Near Mouth Near Pateros, Wa River	68.7°	20.4°	🌤️ Comfortable	⚠️ Brisk	Jul 26
18	Quinault River At Quinault Lake, Wa River	68.5°	20.3°	🌤️ Comfortable	⚠️ Brisk	Aug 29
19	Duwamish River At Golf Course At Tukwila, Wa River	68.4°	20.2°	🌤️ Comfortable	⚠️ Brisk	Jul 26
20	Unnamed Trib To Bertrand Cr Nr H St Nr Lynden, Wa Lake	65.1°	18.4°	🌤️ Comfortable	⚠️ Brisk	Jul 26
21	Wells Powerplant Headwater Near Pateros, Wa Lake	64.6°	18.1°	🌊 Cool	🚫 Cold	Jul 27
22	Cedar River At Cedar Falls, Wa River	64.2°	17.9°	🌊 Cool	🚫 Cold	Jul 27
23	Skykomish River Near Gold Bar, Wa River	64°	17.8°	🌊 Cool	🚫 Cold	Jul 26
24	Columbia River At Vancouver, Wa River	64°	17.8°	🌊 Cool	🚫 Cold	Oct 11
25	Cedar River At Powerplant At Cedar Falls, Wa River	64°	17.8°	🌊 Cool	🚫 Cold	Jul 26
26	Lower Granite Lk Forebay At Lower Granite Dam, Wa Reservoir	64°	17.8°	🌊 Cool	🚫 Cold	Oct 12
27	Columbia River At Bridgeport, Wa River	63.7°	17.6°	🌊 Cool	🚫 Cold	Jul 27
28	Sf Nooksack River At Saxon Bridge, Wa River	63.5°	17.5°	🌊 Cool	🚫 Cold	Jul 27
29	Quinault River Near Taholah, Wa River	63°	17.2°	🌊 Cool	🚫 Cold	Jul 26
30	Anderson Creek At Smith Road Near Goshen, Wa River	62.1°	16.7°	🌊 Cool	🚫 Cold	Jul 26
31	Cedar River At Renton, Wa River	61.9°	16.6°	🌊 Cool	🚫 Cold	Jul 26
32	Yakima River At Kiona, Wa River	61.7°	16.5°	🌊 Cool	🚫 Cold	Sep 30
33	Nooksack River At Ferndale, Wa River	61.2°	16.2°	🌊 Cool	🚫 Cold	Jul 26
34	Fishtrap Creek At Front Street At Lynden, Wa River	60.6°	15.9°	🌊 Cool	🚫 Cold	Jul 26
35	White River At 24Th St E At Dieringer, Wa River	60.4°	15.8°	🌊 Cool	🚫 Cold	Jul 26
36	Bogachiel River Near Forks, Wa River	60.1°	15.6°	🌊 Cool	🚫 Cold	Jul 27
37	White River At R Street Near Auburn, Wa River	60.1°	15.6°	🌊 Cool	🚫 Cold	Jul 26
38	Skagit River Near Mount Vernon, Wa River	59.9°	15.5°	🌊 Cool	🚫 Cold	Jul 26
39	Sauk River At Darrington, Wa River	59.9°	15.5°	🌊 Cool	🚫 Cold	Jul 26
40	Sauk River Near Sauk, Wa River	59.9°	15.5°	🌊 Cool	🚫 Cold	Jul 26
41	Duwamish R At E Marginal Way Br At Duwamish, Wa Lake	59.7°	15.4°	🌊 Cool	🚫 Cold	Sep 12
42	Wind River Near Carson, Wa River	59.7°	15.4°	🌊 Cool	🚫 Cold	Jul 26
43	Walla Walla River Near Touchet, Wa River	59.2°	15.1°	🌊 Cool	🚫 Cold	Sep 29
44	Sauk River Ab White Chuck River Nr Darrington, Wa River	58.5°	14.7°	🌊 Cool	🚫 Cold	Jul 26
45	Skookum Creek Above Diversion Near Wickersham, Wa River	58.5°	14.7°	🌊 Cool	🚫 Cold	Jul 26
46	Calawah River Near Forks, Wa River	58.1°	14.5°	🌊 Cool	🚫 Cold	Jul 27
47	Canyon Creek Near Cedar Falls, Wa River	57.7°	14.3°	🌊 Cool	🚫 Cold	Jul 26
48	Stillaguamish River Near Stanwood, Wa River	57.2°	14°	🌊 Cool	🚫 Cold	Sep 29
49	Nooksack River At North Cedarville, Wa River	57°	13.9°	🌊 Cool	🚫 Cold	Jul 26
50	South Fork Sultan River Near Sultan, Wa River	56.5°	13.6°	🌊 Cool	🚫 Cold	Jul 27
51	Rex River Near Cedar Falls, Wa River	56.1°	13.4°	🌊 Cool	🚫 Cold	Jul 26
52	Sultan River Below Powerplant Near Sultan, Wa River	56.1°	13.4°	🌊 Cool	🚫 Cold	Jul 27
53	Tolt River Near Carnation, Wa River	56.1°	13.4°	🌊 Cool	🚫 Cold	Jul 26
54	Chehalis River Near Grand Mound, Wa River	55.9°	13.3°	🌊 Cool	🚫 Cold	Sep 29
55	Cascade River At Marblemount, Wa River	55.6°	13.1°	🌊 Cool	🚫 Cold	Jul 26
56	Cedar River Below Diversion Near Landsburg, Wa River	55.4°	13°	🌊 Cool	🚫 Cold	Jul 27
57	South Fork Tolt River Near Index, Wa River	55.2°	12.9°	🌊 Cool	🚫 Cold	Jul 26
58	Naselle River Near Naselle, Wa River	55°	12.8°	🌊 Cool	🚫 Cold	Sep 29
59	Sultan River Below Diversion Dam Near Sultan, Wa River	54.9°	12.7°	❄️ Cold	⛔ Very cold	Jul 27
60	Sf Tolt River Bl Regulating Basin Nr Carnation, Wa River	54.9°	12.7°	❄️ Cold	⛔ Very cold	Jul 26
61	Cedar River Near Landsburg, Wa River	54.7°	12.6°	❄️ Cold	⛔ Very cold	Jul 26
62	Andrews Creek Near Mazama, Wa River	54.7°	12.6°	❄️ Cold	⛔ Very cold	Jul 26
63	Bacon Creek Below Oakes Creek Near Marblemount, Wa River	54.5°	12.5°	❄️ Cold	⛔ Very cold	Jul 27
64	White River Near Sumner, Wa River	54.5°	12.5°	❄️ Cold	⛔ Very cold	Sep 29
65	Wynoochee River Above Black Creek Nr Montesano, Wa River	54.3°	12.4°	❄️ Cold	⛔ Very cold	Sep 29
66	Portage Creek At 61St Ave Ne Near Arlingtion, Wa River	53.8°	12.1°	❄️ Cold	⛔ Very cold	May 20
67	Ruby Creek Below Panther Creek Near Newhalem, Wa River	53.6°	12°	❄️ Cold	⛔ Very cold	Jul 26
68	North Fork Tolt River Near Carnation, Wa River	53.6°	12°	❄️ Cold	⛔ Very cold	Jul 26
69	Nf Tolt River Above Yellow Creek Nr Carnation, Wa River	53.4°	11.9°	❄️ Cold	⛔ Very cold	Jul 26
70	Cedar River Below Bear Creek Near Cedar Falls, Wa River	53.4°	11.9°	❄️ Cold	⛔ Very cold	Jul 26
71	Skagit River At Marblemount, Wa River	53.1°	11.7°	❄️ Cold	⛔ Very cold	Jul 27
72	Nf Skokomish R Bl Staircase Rpds Nr Hoodsport, Wa Lake	52.7°	11.5°	❄️ Cold	⛔ Very cold	Jul 26
73	South Fork Tolt River Near Carnation, Wa River	52.7°	11.5°	❄️ Cold	⛔ Very cold	Jul 26
74	Lake Tapps Diversion At Dieringer, Wa Lake	52.5°	11.4°	❄️ Cold	⛔ Very cold	Jul 26
75	White River At Headworks Ab Flume Nr Buckley, Wa River	52.5°	11.4°	❄️ Cold	⛔ Very cold	Sep 29
76	Cedar River Near Cedar Falls, Wa River	52°	11.1°	❄️ Cold	⛔ Very cold	Jul 26
77	Methow River At Twisp, Wa River	51.8°	11°	❄️ Cold	⛔ Very cold	Sep 29
78	Skagit River At Newhalem, Wa River	51.3°	10.7°	❄️ Cold	⛔ Very cold	Jul 27
79	Nf Nooksack River Bl Cascade Creek Nr Glacier, Wa River	51.1°	10.6°	❄️ Cold	⛔ Very cold	Jul 26
80	Twisp River Near Twisp, Wa River	50.7°	10.4°	❄️ Cold	⛔ Very cold	Sep 29
81	Big Beaver Creek Near Newhalem, Wa River	50.4°	10.2°	❄️ Cold	⛔ Very cold	Jul 27
82	Methow River At Winthrop, Wa River	50.4°	10.2°	❄️ Cold	⛔ Very cold	Sep 29
83	Taylor Creek Near Selleck, Wa River	50°	10°	❄️ Cold	⛔ Very cold	Jul 26
84	Mf Nooksack River Near Deming, Wa River	46°	7.8°	❄️ Cold	⛔ Very cold	Sep 30
85	Okanogan River Near Tonasket, Wa River	45.9°	7.7°	❄️ Cold	⛔ Very cold	Mar 31
86	French Creek Near Darrington, Wa River	44.4°	6.9°	🧊 Very Cold	⛔ Very cold	May 21
87	Yale Reservoir Near Yale, Wa Reservoir	42.4°	5.8°	🧊 Very Cold	⛔ Very cold	Dec 22
88	Snake River Near Anatone, Wa River	42.1°	5.6°	🧊 Very Cold	⛔ Very cold	Mar 20
89	Yakima River Above Ahtanum Creek At Union Gap, Wa River	41°	5°	🧊 Very Cold	⛔ Very cold	Oct 30
90	American River Near Nile, Wa River	34.7°	1.5°	🧊 Very Cold	⛔ Very cold	Dec 4
91	Granger Drain At Granger, Wa Lake	33.4°	0.8°	🧊 Very Cold	⛔ Very cold	Oct 7
92	White River Below Clearwater River Nr Buckley, Wa River	—	—	—	—	—
93	Greenwater River At Greenwater, Wa River	—	—	—	—	—
94	Chiwawa River Near Plain, Wa River	—	—	—	—	—
95	Rock Creek Below Walsh Lake Near Landsburg, Wa River	—	—	—	—	—
96	Alder Reservoir At Alder, Wa Lake	—	—	—	—	—
97	Skagit River Blw Damnation Crk Nr Marblemount, Wa River	—	—	—	—	—
98	Crab Creek Near Moses Lake, Wa River	—	—	—	—	—
99	Lake Chelan At Purple Point At Stehekin, Wa Lake	—	—	—	—	—
100	Green River Near Auburn, Wa River	—	—	—	—	—

Chewuch River At Winthrop, Wa River

149.4°F

🔥 Hot

Okanogan River Nr Wakefield Br South Of Malott, Wa River

76.6°F

☀️ Warm

Okanogan River At Malott, Wa River

75.9°F

☀️ Warm

Okanogan River At Oroville, Wa River

75°F

☀️ Warm

Osoyoos Lake Near Oroville, Wa Lake

75°F

☀️ Warm

Boundary Reservoir At Forebay Nr Metaline Falls Reservoir

74.5°F

🌤️ Comfortable

Pend Oreille River At International Boundary River

74.1°F

🌤️ Comfortable

Sanpoil River Above Jack Creek At Keller, Wa River

72.5°F

🌤️ Comfortable

Columbia River, Right Bank, Near Cliffs, Wa River

71.6°F

🌤️ Comfortable

Columbia River At Bonneville Dam Forebay, Wa River

71.4°F

🌤️ Comfortable

Columbia River At Cascade Island, Wa River

71.2°F

🌤️ Comfortable

Columbia River At John Day Dam Navigation Lock, Wa River

71.2°F

🌤️ Comfortable

Columbia River At The Dalles Dam Forebay, Wa River

71.1°F

🌤️ Comfortable

Chehalis River At Porter, Wa River

70.7°F

🌤️ Comfortable

Similkameen River Near Nighthawk, Wa River

70.2°F

🌤️ Comfortable

Wenatchee River At Monitor, Wa River

70°F

🌤️ Comfortable

Methow River Near Mouth Near Pateros, Wa River

68.7°F

🌤️ Comfortable

Quinault River At Quinault Lake, Wa River

68.5°F

🌤️ Comfortable

Duwamish River At Golf Course At Tukwila, Wa River

68.4°F

🌤️ Comfortable

Unnamed Trib To Bertrand Cr Nr H St Nr Lynden, Wa Lake

65.1°F

🌤️ Comfortable

More Washington Resources

🗺️ Washington Water Levels 🎣 Weekly Fishing Report ⛵ Boat Ramp Status 🌵 Drought Conditions 🌡️ All States

❓ Washington Water Temperature FAQ

What is the warmest lake in Washington today?

Based on our latest USGS data, Chewuch River At Winthrop, Wa is currently the warmest water body in Washington at 149.4°F.

Which Washington lakes are good for swimming right now?

Lakes with water temperatures above 72°F are generally comfortable for swimming. Currently, Washington's average water temperature is 59.7°F — check individual lakes above for specific conditions.

What is the best water temperature for fishing in Washington?

The optimal temperature range depends on your target species. For bass fishing, look for water bodies between 65–75°F. For trout, target the coldest water bodies in Washington — typically 50–65°F. Use the table above to identify which lakes are in the ideal range for your target species.

🔬 Data Methodology & Sources

Water temperature readings on this site are collected from USGS (United States Geological Survey) monitoring stations installed at lakes, rivers, and reservoirs across the country. Sensors measure water surface temperature in Celsius, which is converted to Fahrenheit for display. Data is retrieved and stored daily. Temperatures shown reflect the most recent available sensor reading for each water body, typically from the past 1–30 days depending on station reporting frequency.

⚠️ Water temperatures can vary significantly across a water body due to depth, currents, and time of day. Sensor readings represent conditions at the monitoring station location. Always exercise caution when swimming and consult local authorities for official safety advisories.