What is the average water temperature in Pennsylvania?

The current average water temperature across Pennsylvania's monitored water bodies is 73°F.

🌡️

Pennsylvania Water Temperatures

Q: What is the warmest lake in Pennsylvania today?

Susquehanna River Near Peach Bottom, Pa at 81.9°F.

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

100

With Data

73°F

State Avg

81.9°F

Warmest

81.9°F

Warmest

Susquehanna River Near Peach Bottom, Pa

73°F

State Average

100 water bodies

68°F

Coldest

Equinunk Creek Near Dillontown, Pa

🏊

Swimming Conditions

✅ Good for swimming

Based on avg 73°F

🎣

Fishing Conditions

🎣 Peak — bass, crappie, catfish

Based on avg 73°F

Pennsylvania — Ranked by Temperature

100 with data

#	Water Body	°F	°C	Condition	🏊	Date
1	Susquehanna River Near Peach Bottom, Pa River	81.9°	27.7°	☀️ Warm	🏊 Excellent	Jul 27
2	Schuylkill River At Norristown, Pa River	81.5°	27.5°	☀️ Warm	🏊 Excellent	Jul 27
3	Delaware River At Pennypack Woods Pa River	80.8°	27.1°	☀️ Warm	🏊 Excellent	Jul 27
4	Delaware River At Fort Mifflin At Philadelphia, Pa River	80.8°	27.1°	☀️ Warm	🏊 Excellent	Jul 27
5	Delaware River At Chester Pa River	80.6°	27°	☀️ Warm	🏊 Excellent	Jul 27
6	West Branch Susquehanna River At Lewisburg, Pa River	80.1°	26.7°	☀️ Warm	🏊 Excellent	Sep 29
7	Susquehanna River At Danville, Pa River	80.1°	26.7°	☀️ Warm	🏊 Excellent	Jul 27
8	Susquehanna River At Columbia, Pa River	79.9°	26.6°	☀️ Warm	✅ Good	Jul 27
9	Rays Br Juniata R Bl Rays Dam Nr Huntingdon, Pa Reservoir	79°	26.1°	☀️ Warm	✅ Good	Jul 27
10	West Conewago Creek Near Manchester, Pa River	78.8°	26°	☀️ Warm	✅ Good	Jul 27
11	Pine Creek Bl L Pine Creek Near Waterville, Pa River	77.7°	25.4°	☀️ Warm	✅ Good	Jul 27
12	Perkiomen Creek At Graterford, Pa River	77°	25°	☀️ Warm	✅ Good	Jul 27
13	Neshaminy Creek Near Langhorne, Pa River	77°	25°	☀️ Warm	✅ Good	Jul 27
14	Ohio River At Montgomery Lock & Dam, Lower Pool River	77°	25°	☀️ Warm	✅ Good	Jul 27
15	Delaware River At Pond Eddy Ny River	76.8°	24.9°	☀️ Warm	✅ Good	Jul 27
16	Delaware River At Montague Nj River	76.8°	24.9°	☀️ Warm	✅ Good	Jul 27
17	Shenango River At Sharpsville, Pa River	76.6°	24.8°	☀️ Warm	✅ Good	Jul 27
18	Frankford Creek At Castor Ave, Philadelphia, Pa River	76.1°	24.5°	☀️ Warm	✅ Good	Jul 27
19	Brandywine Creek At Chadds Ford, Pa River	75.7°	24.3°	☀️ Warm	✅ Good	Jul 27
20	Tioga River At Tioga Junction, Pa River	75.4°	24.1°	☀️ Warm	✅ Good	Jul 27
21	Delaware River At Barryville Ny River	75.4°	24.1°	☀️ Warm	✅ Good	Jul 27
22	Beaver River At Wampum, Pa River	75.2°	24°	☀️ Warm	✅ Good	Jul 27
23	Connoquenessing Creek Near Zelienople, Pa River	75°	23.9°	☀️ Warm	✅ Good	Jul 27
24	Codorus Creek Near Saginaw, Pa River	75°	23.9°	☀️ Warm	✅ Good	Jul 27
25	Youghiogheny River At Sutersville, Pa River	74.8°	23.8°	🌤️ Comfortable	✅ Good	Jul 27
26	Delaware River At Callicoon Ny River	74.7°	23.7°	🌤️ Comfortable	✅ Good	Jul 27
27	Allegheny R At Cw Bill Young L&D At Acmetonia, Pa Lake	74.5°	23.6°	🌤️ Comfortable	✅ Good	Jul 27
28	Dunkard Creek At Shannopin, Pa River	74.3°	23.5°	🌤️ Comfortable	✅ Good	Jul 27
29	Cheat River At Lake Lynn, Pa River	74.3°	23.5°	🌤️ Comfortable	✅ Good	Sep 15
30	Allegheny River At Lock & Dam 5 Near Freeport, Pa River	74.3°	23.5°	🌤️ Comfortable	✅ Good	Jul 27
31	Cobbs Creek At Mt. Moriah Cemetery, Philadelphia River	74.1°	23.4°	🌤️ Comfortable	✅ Good	Jul 27
32	Tionesta Creek At Tionesta Creek Dam, Pa River	73.9°	23.3°	🌤️ Comfortable	✅ Good	Jul 27
33	Shenango River Near West New Castle, Pa River	73.9°	23.3°	🌤️ Comfortable	✅ Good	Jul 27
34	Wb Susquehanna River At Karthaus, Pa River	73.8°	23.2°	🌤️ Comfortable	✅ Good	Jul 27
35	South Fork Tenmile Creek At Jefferson, Pa River	73.8°	23.2°	🌤️ Comfortable	✅ Good	Jul 27
36	Lehigh River At Glendon, Pa River	73.8°	23.2°	🌤️ Comfortable	✅ Good	Jul 27
37	Buck Run At Doe Run, Pa Lake	73.6°	23.1°	🌤️ Comfortable	✅ Good	Jul 27
38	Swatara Creek Near Palmyra, Pa River	73.4°	23°	🌤️ Comfortable	✅ Good	Jul 27
39	Blacklick Creek At Josephine, Pa River	73.4°	23°	🌤️ Comfortable	✅ Good	Jul 27
40	French Creek Near Phoenixville, Pa River	73.4°	23°	🌤️ Comfortable	✅ Good	Jul 27
41	Lackawaxen River At Hawley, Pa River	73.4°	23°	🌤️ Comfortable	✅ Good	Jul 27
42	Loyalhanna Creek At Latrobe, Pa River	73.2°	22.9°	🌤️ Comfortable	✅ Good	Jul 27
43	Casselman River At Markleton, Pa River	73.2°	22.9°	🌤️ Comfortable	✅ Good	Jul 27
44	Wissahickon Creek At Mouth, Philadelphia, Pa River	73°	22.8°	🌤️ Comfortable	✅ Good	Jul 27
45	Tioga River Near Mansfield, Pa River	73°	22.8°	🌤️ Comfortable	✅ Good	Jul 27
46	Conemaugh River At Tunnelton, Pa River	73°	22.8°	🌤️ Comfortable	✅ Good	Jul 27
47	East Branch Brandywine Creek Below Downingtown, Pa River	73°	22.8°	🌤️ Comfortable	✅ Good	Jul 27
48	Muddy Creek At Castle Fin, Pa River	72.9°	22.7°	🌤️ Comfortable	✅ Good	Jul 27
49	West Branch Brandywine Creek At Modena, Pa River	72.9°	22.7°	🌤️ Comfortable	✅ Good	Jul 27
50	Conewago Creek Near Falmouth, Pa River	72.9°	22.7°	🌤️ Comfortable	✅ Good	Jul 27
51	Loyalhanna Creek At Loyalhanna Dam, Pa River	72.7°	22.6°	🌤️ Comfortable	✅ Good	Jul 27
52	Conewago Creek Near Bellaire, Pa River	72.5°	22.5°	🌤️ Comfortable	✅ Good	Jul 27
53	Stony Creek At Sterigere Street At Norristown, Pa River	72.1°	22.3°	🌤️ Comfortable	✅ Good	Jul 27
54	Swift Run At Brickcrafter Rd Nr New Oxford, Pa Lake	72.1°	22.3°	🌤️ Comfortable	✅ Good	Jul 27
55	West Branch Lackawaxen River At Prompton, Pa River	72°	22.2°	🌤️ Comfortable	✅ Good	Jul 27
56	Monongahela River Near Masontown, Pa River	72°	22.2°	🌤️ Comfortable	✅ Good	Jul 27
57	Wissahickon Creek At Fort Washington, Pa River	72°	22.2°	🌤️ Comfortable	✅ Good	Jul 27
58	White Clay Creek Near Strickersville, Pa River	72°	22.2°	🌤️ Comfortable	✅ Good	Jul 27
59	Conemaugh River Below Conemaugh Dam, Pa River	71.8°	22.1°	🌤️ Comfortable	⚠️ Brisk	Jul 27
60	Monongahela R At Lock & Dam 8, At Point Marion, Pa Reservoir	71.8°	22.1°	🌤️ Comfortable	⚠️ Brisk	Jul 27
61	West Branch White Clay Creek Near Chesterville, Pa River	71.6°	22°	🌤️ Comfortable	⚠️ Brisk	Jul 27
62	Fishing Creek At Goldsboro, Pa River	71.6°	22°	🌤️ Comfortable	⚠️ Brisk	Jul 27
63	Shohola Creek Near Walker Lake, Pa River	71.6°	22°	🌤️ Comfortable	⚠️ Brisk	Jul 27
64	Manatawny Creek Near Spangsville, Pa River	71.4°	21.9°	🌤️ Comfortable	⚠️ Brisk	Jul 27
65	Cobbs Cr At U.S. Hghwy No. 1 At Philadelphia, Pa Lake	71.2°	21.8°	🌤️ Comfortable	⚠️ Brisk	Jul 27
66	Shenango River Near Transfer, Pa River	71.2°	21.8°	🌤️ Comfortable	⚠️ Brisk	Jul 27
67	Conemaugh River At Seward, Pa River	71.2°	21.8°	🌤️ Comfortable	⚠️ Brisk	Jul 27
68	Tionesta Creek At Lynch, Pa River	71.2°	21.8°	🌤️ Comfortable	⚠️ Brisk	Jul 27
69	Trout Run At Avondale, Pa Lake	71.1°	21.7°	🌤️ Comfortable	⚠️ Brisk	Jul 27
70	Allegheny River At Port Allegany, Pa River	70.9°	21.6°	🌤️ Comfortable	⚠️ Brisk	Jul 27
71	Crooked Creek At Crooked Creek Dam Near Ford City River	70.9°	21.6°	🌤️ Comfortable	⚠️ Brisk	Jul 27
72	Kreutz Creek At Strickler, Pa River	70.7°	21.5°	🌤️ Comfortable	⚠️ Brisk	Jul 27
73	Chiques Creek Near Marietta, Pa River	70.7°	21.5°	🌤️ Comfortable	⚠️ Brisk	Jul 27
74	Tulpehocken Creek Near Bernville, Pa River	70.7°	21.5°	🌤️ Comfortable	⚠️ Brisk	Jul 27
75	Walnut Creek Upstream Pool, Near Erie, Pa River	70.5°	21.4°	🌤️ Comfortable	⚠️ Brisk	Jul 27
76	Lehigh R Bl Francis E Walter Res Nr White Haven Pa Lake	70.5°	21.4°	🌤️ Comfortable	⚠️ Brisk	Jul 27
77	Tobyhanna Creek Near Blakeslee, Pa River	70.3°	21.3°	🌤️ Comfortable	⚠️ Brisk	Jul 27
78	Little Lehigh Creek Near Trexlertown, Pa River	70.3°	21.3°	🌤️ Comfortable	⚠️ Brisk	Jul 27
79	West Branch Brandywine Creek At Coatesville, Pa River	70.3°	21.3°	🌤️ Comfortable	⚠️ Brisk	Jul 27
80	Cowanesque River Near Lawrenceville, Pa River	70.2°	21.2°	🌤️ Comfortable	⚠️ Brisk	Jul 27
81	Little Conewago Crk, Gingrich Rd At Upper Lawn Pa Lake	70.2°	21.2°	🌤️ Comfortable	⚠️ Brisk	Jul 27
82	Cedar Creek At Mouth Near Allentown, Pa River	69.8°	21°	🌤️ Comfortable	⚠️ Brisk	Jul 27
83	Darby Creek Near Darby, Pa River	69.8°	21°	🌤️ Comfortable	⚠️ Brisk	Sep 10
84	Bald Eagle Creek At Blanchard, Pa River	69.8°	21°	🌤️ Comfortable	⚠️ Brisk	Jul 27
85	Kettle Creek At Cross Fork, Pa River	69.8°	21°	🌤️ Comfortable	⚠️ Brisk	Jul 27
86	Middle Branch White Clay Creek Near West Grove,Pa River	69.4°	20.8°	🌤️ Comfortable	⚠️ Brisk	Jul 27
87	Fishing Creek At Craley, Pa River	69.3°	20.7°	🌤️ Comfortable	⚠️ Brisk	Jul 27
88	Delaware River At Lordville Ny River	69.3°	20.7°	🌤️ Comfortable	⚠️ Brisk	Jul 27
89	Sacony Creek At Normal Avenue At Kutztown, Pa River	69.1°	20.6°	🌤️ Comfortable	⚠️ Brisk	Jul 27
90	Birch Run Near Wagontown, Pa Lake	69.1°	20.6°	🌤️ Comfortable	⚠️ Brisk	Jul 27
91	N Br Towanda Cr, Clark Rd Nr Granville Summit Pa Lake	68.9°	20.5°	🌤️ Comfortable	⚠️ Brisk	Jul 27
92	Wb Susquehanna River At Williamsport, Pa River	68.9°	20.5°	🌤️ Comfortable	⚠️ Brisk	Sep 29
93	Conneaut Creek At Dickonsburg, Pa River	68.9°	20.5°	🌤️ Comfortable	⚠️ Brisk	Jul 27
94	Lehigh River At Stoddartsville, Pa River	68.9°	20.5°	🌤️ Comfortable	⚠️ Brisk	Jul 27
95	Crooked Creek At Idaho, Pa River	68.7°	20.4°	🌤️ Comfortable	⚠️ Brisk	Jul 27
96	Stonycreek River At Ferndale, Pa River	68.5°	20.3°	🌤️ Comfortable	⚠️ Brisk	Sep 28
97	Mahoning Creek At Mahoning Creek Dam, Pa River	68.5°	20.3°	🌤️ Comfortable	⚠️ Brisk	Jul 27
98	Allegheny River Below Kinzua Dam At Big Bend, Pa River	68°	20°	🌤️ Comfortable	⚠️ Brisk	Jul 26
99	Corey Creek Near Mainesburg, Pa River	68°	20°	🌤️ Comfortable	⚠️ Brisk	Sep 27
100	Equinunk Creek Near Dillontown, Pa River	68°	20°	🌤️ Comfortable	⚠️ Brisk	Jul 27

Susquehanna River Near Peach Bottom, Pa River

81.9°F

☀️ Warm

Schuylkill River At Norristown, Pa River

81.5°F

☀️ Warm

Delaware River At Pennypack Woods Pa River

80.8°F

☀️ Warm

Delaware River At Fort Mifflin At Philadelphia, Pa River

80.8°F

☀️ Warm

Delaware River At Chester Pa River

80.6°F

☀️ Warm

West Branch Susquehanna River At Lewisburg, Pa River

80.1°F

☀️ Warm

Susquehanna River At Danville, Pa River

80.1°F

☀️ Warm

Susquehanna River At Columbia, Pa River

79.9°F

☀️ Warm

Rays Br Juniata R Bl Rays Dam Nr Huntingdon, Pa Reservoir

79°F

☀️ Warm

West Conewago Creek Near Manchester, Pa River

78.8°F

☀️ Warm

Pine Creek Bl L Pine Creek Near Waterville, Pa River

77.7°F

☀️ Warm

Perkiomen Creek At Graterford, Pa River

77°F

☀️ Warm

Neshaminy Creek Near Langhorne, Pa River

77°F

☀️ Warm

Ohio River At Montgomery Lock & Dam, Lower Pool River

77°F

☀️ Warm

Delaware River At Pond Eddy Ny River

76.8°F

☀️ Warm

Delaware River At Montague Nj River

76.8°F

☀️ Warm

Shenango River At Sharpsville, Pa River

76.6°F

☀️ Warm

Frankford Creek At Castor Ave, Philadelphia, Pa River

76.1°F

☀️ Warm

Brandywine Creek At Chadds Ford, Pa River

75.7°F

☀️ Warm

Tioga River At Tioga Junction, Pa River

75.4°F

☀️ Warm

More Pennsylvania Resources

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

❓ Pennsylvania Water Temperature FAQ

What is the warmest lake in Pennsylvania today?

Based on our latest USGS data, Susquehanna River Near Peach Bottom, Pa is currently the warmest water body in Pennsylvania at 81.9°F.

Which Pennsylvania lakes are good for swimming right now?

Lakes with water temperatures above 72°F are generally comfortable for swimming. Pennsylvania averages 73°F, making most water bodies suitable for swimming right now.

What is the best water temperature for fishing in Pennsylvania?

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 Pennsylvania — 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.