Live readings · updated daily
Water temperature in Maryland
The latest readings from USGS real-time water sensors across Maryland, warmest first. Snapshot updated October 19, 2026.
Warmest sensor reading right now
60°F16°C
USGS gauge SUSQUEHANNA RIVER NEAR DARLINGTON, MD · as of 19 hrs ago
All reporting stations (warmest 50 of 150)
| Station | Water temp | Streamflow | Gage height | Observed |
|---|---|---|---|---|
| SUSQUEHANNA RIVER NEAR DARLINGTON, MDUSGS gauge | 60°F16°C | — | — | 19 hrs ago |
| POTOMAC RIVER NEAR WASH, DC LITTLE FALLS PUMP STAUSGS gauge | 60°F16°C | 6,150 ft³/s | 3.52 ft | 19 hrs ago |
| SAVAGE RIV BL SAVAGE RIV DAM NEAR BLOOMINGTON, MDUSGS gauge | 59°F15°C | 74 ft³/s | 0.90 ft | 19 hrs ago |
| DEEP CREEK LAKE NEAR THAYERVILLE, MDUSGS gauge | 59°F15°C | — | — | 20 hrs ago |
| POTOMAC RIVER AT POINT OF ROCKS, MDUSGS gauge | 59°F15°C | 4,970 ft³/s | 2.52 ft | 19 hrs ago |
| Patuxent R at Gov Bridge Natural Area nr Bowie MDUSGS gauge | 56°F13°C | — | — | 19 hrs ago |
| MONOCACY RIVER NEAR DICKERSON, MDUSGS gauge | 56°F13°C | 382 ft³/s | 1.79 ft | 19 hrs ago |
| NORTHEAST BRANCH ANACOSTIA RIVER AT RIVERDALE, MDUSGS gauge | 55°F13°C | 13 ft³/s | 0.48 ft | 19 hrs ago |
| CHOPTANK RIVER NEAR GREENSBORO, MDUSGS gauge | 54°F12°C | 33 ft³/s | 2.59 ft | 19 hrs ago |
| NORTHWEST BRANCH ANACOSTIA RIVER AT BRENTWOOD, MDUSGS gauge | 53°F12°C | 12 ft³/s | 1.10 ft | 19 hrs ago |
| SLIGO CREEK NEAR TAKOMA PARK, MDUSGS gauge | 53°F12°C | 2 ft³/s | 0.63 ft | 19 hrs ago |
| PAINT BRANCH NEAR COLLEGE PARK, MDUSGS gauge | 52°F11°C | 3 ft³/s | 1.50 ft | 19 hrs ago |
| SCOTTS LEVEL BRANCH AT ROCKDALE, MDUSGS gauge | 52°F11°C | 1 ft³/s | 0.70 ft | 19 hrs ago |
| FOSTER BRANCH NEAR JOPPATOWNE, MDUSGS gauge | 51°F11°C | 0 ft³/s | 1.84 ft | 19 hrs ago |
| GUNPOWDER FALLS NEAR PARKTON, MDUSGS gauge | 51°F10°C | 31 ft³/s | 1.50 ft | 19 hrs ago |
| PLUMTREE RUN NEAR BEL AIR, MDUSGS gauge | 50°F10°C | 2 ft³/s | 1.12 ft | 19 hrs ago |
| YOUGHIOGHENY RIVER AT FRIENDSVILLE, MDUSGS gauge | 50°F10°C | 350 ft³/s | 2.80 ft | 19 hrs ago |
| SAMS CREEK AT MCKINSTRYS MILL, MDUSGS gauge | 49°F9°C | 5 ft³/s | 1.48 ft | 19 hrs ago |
| SAVAGE RIVER NEAR BARTON, MDUSGS gauge | 46°F8°C | 28 ft³/s | 1.29 ft | 19 hrs ago |
| ANTIETAM CREEK NEAR SHARPSBURG, MDUSGS gauge | — | 113 ft³/s | 2.40 ft | 19 hrs ago |
| ANTIETAM CREEK NEAR WAYNESBORO, PAUSGS gauge | — | 29 ft³/s | 2.19 ft | 19 hrs ago |
| ARROWHEAD RUN AT THAYERVILLE, MDUSGS gauge | — | 1 ft³/s | 2.79 ft | 19 hrs ago |
| BAISMAN RUN AT BROADMOOR, MDUSGS gauge | — | 0 ft³/s | 1.10 ft | 19 hrs ago |
| BEAR CREEK AT FRIENDSVILLE, MDUSGS gauge | — | 55 ft³/s | 1.82 ft | 19 hrs ago |
| BEAVER RUN NEAR FINKSBURG, MDUSGS gauge | — | 5 ft³/s | 0.50 ft | 20 hrs ago |
| BEAVERDAM CREEK NEAR CHEVERLY, MDUSGS gauge | — | — | 1.56 ft | 20 hrs ago |
| BEAVERDAM RUN AT COCKEYSVILLE, MDUSGS gauge | — | 16 ft³/s | 3.03 ft | 19 hrs ago |
| BEETREE RUN AT BENTLEY SPRINGS, MDUSGS gauge | — | 5 ft³/s | 0.64 ft | 19 hrs ago |
| BENNETT CREEK AT PARK MILLS, MDUSGS gauge | — | 31 ft³/s | 1.66 ft | 19 hrs ago |
| BIG ELK CREEK AT ELK MILLS, MDUSGS gauge | — | 55 ft³/s | 3.43 ft | 19 hrs ago |
| BIG PIPE CREEK AT BRUCEVILLE, MDUSGS gauge | — | 36 ft³/s | 1.07 ft | 19 hrs ago |
| BIRCH BRANCH AT SHOWELL, MDUSGS gauge | — | 1 ft³/s | 3.46 ft | 19 hrs ago |
| BOTTLE BRANCH AT BERLIN, MDUSGS gauge | — | — | 1.31 ft | 20 hrs ago |
| BYNUM RUN AT BEL AIR, MDUSGS gauge | — | 5 ft³/s | 0.68 ft | 19 hrs ago |
| BYNUM RUN NEAR ABINGDON, MDUSGS gauge | — | 15 ft³/s | 2.69 ft | 19 hrs ago |
| CABIN BRANCH NEAR BOYDS, MDUSGS gauge | — | 1 ft³/s | 4.23 ft | 19 hrs ago |
| CASSELMAN RIVER AT GRANTSVILLE, MDUSGS gauge | — | 72 ft³/s | 1.31 ft | 19 hrs ago |
| CATOCTIN CREEK NEAR MIDDLETOWN, MDUSGS gauge | — | 12 ft³/s | 1.61 ft | 19 hrs ago |
| CATTAIL CREEK NEAR GLENWOOD, MDUSGS gauge | — | 13 ft³/s | 0.66 ft | 19 hrs ago |
| Cherry Creek at State Park Road near McHenry, MDUSGS gauge | — | 12 ft³/s | 2.53 ft | 19 hrs ago |
| Ches Bay at Mouth of Susq R at Havre de Grace, MDUSGS gauge | — | — | 1.65 ft | 19 hrs ago |
| CHESTERVILLE BRANCH NEAR CRUMPTON, MDUSGS gauge | — | — | 1.61 ft | 19 hrs ago |
| CHICAMACOMICO RIVER NEAR SALEM, MDUSGS gauge | — | 7 ft³/s | 0.45 ft | 19 hrs ago |
| CONOCOCHEAGUE CREEK AT FAIRVIEW, MDUSGS gauge | — | 220 ft³/s | 1.88 ft | 19 hrs ago |
| CRANBERRY BRANCH NEAR WESTMINSTER, MDUSGS gauge | — | 0 ft³/s | 1.25 ft | 19 hrs ago |
| DEAD RUN AT FRANKLINTOWN, MDUSGS gauge | — | 2 ft³/s | 0.40 ft | 19 hrs ago |
| DEAD RUN AT WOODLAWN, MDUSGS gauge | — | — | 0.32 ft | 1 day ago |
| DEAD RUN NEAR CATONSVILLE, MDUSGS gauge | — | — | 0.35 ft | 19 hrs ago |
| DEAD RUN TRIBUTARY AT WOODLAWN, MDUSGS gauge | — | — | 2.77 ft | 19 hrs ago |
| DEAD RUN TRIBUTARY NEAR WOODLAWN, MDUSGS gauge | — | — | 0.15 ft | 19 hrs ago |
Station links open the official monitoring page with charts and history.
About these readings
Readings come from USGS real-time monitoring stations — 19 sensors are currently reporting a water temperature in Maryland. Each figure is a point measurement at one sensor, usually on a river or stream — it doesn’t describe a whole lake or shoreline, and coverage varies across the state. Data is provisional and can be revised by the USGS.
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Conditions are for general information only and can change quickly. Always judge the water in person and follow posted advisories and local guidance before swimming or paddling.