What is the average water temperature in Washington?

The current average water temperature across Washington's monitored water bodies is 55.3°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

55.3°F

State Avg

149.4°F

Warmest

149.4°F

Warmest

Chewuch River At Winthrop, Wa

55.3°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 55.3°F

🎣

Fishing Conditions

🎣 Good — trout, walleye, bass

Based on avg 55.3°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 At Oroville, Wa River	75°	23.9°	☀️ Warm	✅ Good	Jul 18
3	Chehalis River At Porter, Wa River	70.7°	21.5°	🌤️ Comfortable	⚠️ Brisk	Jul 31
4	Quinault River At Quinault Lake, Wa River	68.5°	20.3°	🌤️ Comfortable	⚠️ Brisk	Aug 29
5	Osoyoos Lake Near Oroville, Wa Lake	67.3°	19.6°	🌤️ Comfortable	⚠️ Brisk	Jun 4
6	Sanpoil River Above Jack Creek At Keller, Wa River	64.9°	18.3°	🌊 Cool	🚫 Cold	Jun 4
7	Lower Granite Lk Forebay At Lower Granite Dam, Wa Reservoir	64°	17.8°	🌊 Cool	🚫 Cold	Oct 12
8	Columbia River At Vancouver, Wa River	64°	17.8°	🌊 Cool	🚫 Cold	Oct 11
9	Okanogan River At Malott, Wa River	62.2°	16.8°	🌊 Cool	🚫 Cold	Jun 4
10	Okanogan River Nr Wakefield Br South Of Malott, Wa River	62.2°	16.8°	🌊 Cool	🚫 Cold	Jun 4
11	Unnamed Trib To Bertrand Cr Nr H St Nr Lynden, Wa Lake	61.9°	16.6°	🌊 Cool	🚫 Cold	Jun 4
12	Yakima River At Kiona, Wa River	61.7°	16.5°	🌊 Cool	🚫 Cold	Sep 30
13	Columbia River At Bonneville Dam Forebay, Wa River	61.5°	16.4°	🌊 Cool	🚫 Cold	Jun 5
14	Columbia River At Cascade Island, Wa River	61.5°	16.4°	🌊 Cool	🚫 Cold	Jun 5
15	Duwamish River At Golf Course At Tukwila, Wa River	61.3°	16.3°	🌊 Cool	🚫 Cold	Jun 4
16	Columbia River, Right Bank, Near Cliffs, Wa River	61.2°	16.2°	🌊 Cool	🚫 Cold	Jun 5
17	Columbia River At The Dalles Dam Forebay, Wa River	61°	16.1°	🌊 Cool	🚫 Cold	Jun 5
18	Quinault River Near Taholah, Wa River	61°	16.1°	🌊 Cool	🚫 Cold	Jun 4
19	Columbia River At John Day Dam Navigation Lock, Wa River	60.8°	16°	🌊 Cool	🚫 Cold	Jun 5
20	Boundary Reservoir At Forebay Nr Metaline Falls Reservoir	60.3°	15.7°	🌊 Cool	🚫 Cold	Jun 4
21	Pend Oreille River At International Boundary River	60.3°	15.7°	🌊 Cool	🚫 Cold	Jun 4
22	Duwamish R At E Marginal Way Br At Duwamish, Wa Lake	59.7°	15.4°	🌊 Cool	🚫 Cold	Sep 12
23	Anderson Creek At Smith Road Near Goshen, Wa River	59.7°	15.4°	🌊 Cool	🚫 Cold	Jun 4
24	Fishtrap Creek At Front Street At Lynden, Wa River	59.2°	15.1°	🌊 Cool	🚫 Cold	Jun 4
25	Walla Walla River Near Touchet, Wa River	59.2°	15.1°	🌊 Cool	🚫 Cold	Sep 29
26	Nooksack River At Ferndale, Wa River	58.6°	14.8°	🌊 Cool	🚫 Cold	Jun 4
27	Bogachiel River Near Forks, Wa River	57.9°	14.4°	🌊 Cool	🚫 Cold	Jun 5
28	White River At 24Th St E At Dieringer, Wa River	57.4°	14.1°	🌊 Cool	🚫 Cold	Jun 4
29	Similkameen River Near Nighthawk, Wa River	57.4°	14.1°	🌊 Cool	🚫 Cold	Jun 4
30	Stillaguamish River Near Stanwood, Wa River	57.2°	14°	🌊 Cool	🚫 Cold	Sep 29
31	White River At R Street Near Auburn, Wa River	57°	13.9°	🌊 Cool	🚫 Cold	Jun 4
32	Cedar River At Renton, Wa River	57°	13.9°	🌊 Cool	🚫 Cold	Jun 4
33	Sf Nooksack River At Saxon Bridge, Wa River	56.5°	13.6°	🌊 Cool	🚫 Cold	Jun 4
34	Nooksack River At North Cedarville, Wa River	56.3°	13.5°	🌊 Cool	🚫 Cold	Jun 4
35	Chehalis River Near Grand Mound, Wa River	55.9°	13.3°	🌊 Cool	🚫 Cold	Sep 29
36	Wells Powerplant Headwater Near Pateros, Wa Lake	55.6°	13.1°	🌊 Cool	🚫 Cold	Jun 4
37	Columbia River At Bridgeport, Wa River	55.4°	13°	🌊 Cool	🚫 Cold	Jun 4
38	Naselle River Near Naselle, Wa River	55°	12.8°	🌊 Cool	🚫 Cold	Sep 29
39	Calawah River Near Forks, Wa River	54.9°	12.7°	❄️ Cold	⛔ Very cold	Jun 5
40	Wind River Near Carson, Wa River	54.9°	12.7°	❄️ Cold	⛔ Very cold	Jun 4
41	Wenatchee River At Monitor, Wa River	54.9°	12.7°	❄️ Cold	⛔ Very cold	Jun 4
42	Methow River Near Mouth Near Pateros, Wa River	54.7°	12.6°	❄️ Cold	⛔ Very cold	Jun 4
43	Sultan River Below Powerplant Near Sultan, Wa River	54.5°	12.5°	❄️ Cold	⛔ Very cold	Jun 4
44	White River Near Sumner, Wa River	54.5°	12.5°	❄️ Cold	⛔ Very cold	Sep 29
45	Cedar River At Cedar Falls, Wa River	54.5°	12.5°	❄️ Cold	⛔ Very cold	Jun 4
46	Wynoochee River Above Black Creek Nr Montesano, Wa River	54.3°	12.4°	❄️ Cold	⛔ Very cold	Sep 29
47	Cedar River At Powerplant At Cedar Falls, Wa River	54.3°	12.4°	❄️ Cold	⛔ Very cold	Jun 4
48	Sultan River Below Diversion Dam Near Sultan, Wa River	54°	12.2°	❄️ Cold	⛔ Very cold	Jun 4
49	Portage Creek At 61St Ave Ne Near Arlingtion, Wa River	53.8°	12.1°	❄️ Cold	⛔ Very cold	May 20
50	Skykomish River Near Gold Bar, Wa River	53.8°	12.1°	❄️ Cold	⛔ Very cold	Jun 4
51	Cedar River Below Diversion Near Landsburg, Wa River	53.6°	12°	❄️ Cold	⛔ Very cold	Jun 4
52	Cedar River Near Landsburg, Wa River	53.2°	11.8°	❄️ Cold	⛔ Very cold	Jun 4
53	Sf Tolt River Bl Regulating Basin Nr Carnation, Wa River	53.2°	11.8°	❄️ Cold	⛔ Very cold	Jun 4
54	Sauk River Near Sauk, Wa River	52.9°	11.6°	❄️ Cold	⛔ Very cold	Jun 4
55	Skagit River Near Mount Vernon, Wa River	52.9°	11.6°	❄️ Cold	⛔ Very cold	Jun 4
56	Tolt River Near Carnation, Wa River	52.7°	11.5°	❄️ Cold	⛔ Very cold	Jun 4
57	White River At Headworks Ab Flume Nr Buckley, Wa River	52.5°	11.4°	❄️ Cold	⛔ Very cold	Sep 29
58	South Fork Tolt River Near Carnation, Wa River	52.3°	11.3°	❄️ Cold	⛔ Very cold	Jun 4
59	Skookum Creek Above Diversion Near Wickersham, Wa River	52.3°	11.3°	❄️ Cold	⛔ Very cold	Jun 4
60	Methow River At Twisp, Wa River	51.8°	11°	❄️ Cold	⛔ Very cold	Sep 29
61	Sauk River At Darrington, Wa River	51.6°	10.9°	❄️ Cold	⛔ Very cold	Jun 4
62	Twisp River Near Twisp, Wa River	50.7°	10.4°	❄️ Cold	⛔ Very cold	Sep 29
63	North Fork Tolt River Near Carnation, Wa River	50.4°	10.2°	❄️ Cold	⛔ Very cold	Jun 4
64	Methow River At Winthrop, Wa River	50.4°	10.2°	❄️ Cold	⛔ Very cold	Sep 29
65	Nf Skokomish R Bl Staircase Rpds Nr Hoodsport, Wa Lake	50.4°	10.2°	❄️ Cold	⛔ Very cold	Jun 4
66	Cascade River At Marblemount, Wa River	50°	10°	❄️ Cold	⛔ Very cold	Jun 4
67	Rex River Near Cedar Falls, Wa River	50°	10°	❄️ Cold	⛔ Very cold	Jun 4
68	Sauk River Ab White Chuck River Nr Darrington, Wa River	50°	10°	❄️ Cold	⛔ Very cold	Jun 4
69	Nf Tolt River Above Yellow Creek Nr Carnation, Wa River	49.6°	9.8°	❄️ Cold	⛔ Very cold	Jun 4
70	Lake Tapps Diversion At Dieringer, Wa Lake	49.5°	9.7°	❄️ Cold	⛔ Very cold	Jun 4
71	Bacon Creek Below Oakes Creek Near Marblemount, Wa River	49.5°	9.7°	❄️ Cold	⛔ Very cold	Jun 4
72	South Fork Tolt River Near Index, Wa River	49.1°	9.5°	❄️ Cold	⛔ Very cold	Jun 4
73	Cedar River Near Cedar Falls, Wa River	48.7°	9.3°	❄️ Cold	⛔ Very cold	Jun 4
74	Skagit River At Marblemount, Wa River	48.7°	9.3°	❄️ Cold	⛔ Very cold	Jun 4
75	South Fork Sultan River Near Sultan, Wa River	48.6°	9.2°	❄️ Cold	⛔ Very cold	Jun 4
76	Canyon Creek Near Cedar Falls, Wa River	48.6°	9.2°	❄️ Cold	⛔ Very cold	Jun 4
77	Taylor Creek Near Selleck, Wa River	48.4°	9.1°	❄️ Cold	⛔ Very cold	Jun 4
78	Cedar River Below Bear Creek Near Cedar Falls, Wa River	48°	8.9°	❄️ Cold	⛔ Very cold	Jun 4
79	Nf Nooksack River Bl Cascade Creek Nr Glacier, Wa River	47.1°	8.4°	❄️ Cold	⛔ Very cold	Jun 4
80	Big Beaver Creek Near Newhalem, Wa River	46.8°	8.2°	❄️ Cold	⛔ Very cold	Jun 4
81	Skagit River At Newhalem, Wa River	46.8°	8.2°	❄️ Cold	⛔ Very cold	Jun 4
82	Andrews Creek Near Mazama, Wa River	46.6°	8.1°	❄️ Cold	⛔ Very cold	Jun 4
83	Mf Nooksack River Near Deming, Wa River	46°	7.8°	❄️ Cold	⛔ Very cold	Sep 30
84	Okanogan River Near Tonasket, Wa River	45.9°	7.7°	❄️ Cold	⛔ Very cold	Mar 31
85	Ruby Creek Below Panther Creek Near Newhalem, Wa River	45.5°	7.5°	❄️ Cold	⛔ Very cold	Jun 4
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	Cispus River Ab Yellowjacket Creek Near Randle, Wa River	—	—	—	—	—
93	Columbia River Below Wells Dam, Wa River	—	—	—	—	—
94	South Fork Skokomish River Near Union, Wa River	—	—	—	—	—
95	Rattlesnake Lake At Cedar Falls, Wa Lake	—	—	—	—	—
96	Spokane River At Spokane, Wa River	—	—	—	—	—
97	Skookumchuck River Near Vail, Wa River	—	—	—	—	—
98	Teanaway River Near Cle Elum, Wa River	—	—	—	—	—
99	Mashel River Near La Grande, Wa River	—	—	—	—	—
100	Bonaparte Creek At Tonasket, Wa River	—	—	—	—	—

Chewuch River At Winthrop, Wa River

149.4°F

🔥 Hot

Okanogan River At Oroville, Wa River

75°F

☀️ Warm

Chehalis River At Porter, Wa River

70.7°F

🌤️ Comfortable

Quinault River At Quinault Lake, Wa River

68.5°F

🌤️ Comfortable

Osoyoos Lake Near Oroville, Wa Lake

67.3°F

🌤️ Comfortable

Sanpoil River Above Jack Creek At Keller, Wa River

64.9°F

🌊 Cool

Lower Granite Lk Forebay At Lower Granite Dam, Wa Reservoir

64°F

🌊 Cool

Columbia River At Vancouver, Wa River

64°F

🌊 Cool

Okanogan River At Malott, Wa River

62.2°F

🌊 Cool

Okanogan River Nr Wakefield Br South Of Malott, Wa River

62.2°F

🌊 Cool

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

61.9°F

🌊 Cool

Yakima River At Kiona, Wa River

61.7°F

🌊 Cool

Columbia River At Bonneville Dam Forebay, Wa River

61.5°F

🌊 Cool

Columbia River At Cascade Island, Wa River

61.5°F

🌊 Cool

Duwamish River At Golf Course At Tukwila, Wa River

61.3°F

🌊 Cool

Columbia River, Right Bank, Near Cliffs, Wa River

61.2°F

🌊 Cool

Columbia River At The Dalles Dam Forebay, Wa River

61°F

🌊 Cool

Quinault River Near Taholah, Wa River

61°F

🌊 Cool

Columbia River At John Day Dam Navigation Lock, Wa River

60.8°F

🌊 Cool

Boundary Reservoir At Forebay Nr Metaline Falls Reservoir

60.3°F

🌊 Cool

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 55.3°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.