Smith Mountain LakeWater Level & Temperature
Smith Mountain Lake water level & water temperature
Smith Mountain Lake water level is updated continuously from the operating agency. Full pool elevation is 795 ft. Live reading, 7-day trend, and multi-year history appear below as the data loads.
Smith Mountain Lake water temperature by month
Smith Mountain Lake surface water temperature averages from about 44°F in February to 85°F in July over the year, based on a 40-year USGS model (1980–2020). Cold-water caution applies in January, February, March, November and December, when the typical temperature is below 60°F.
Jan
44°
Feb
44°
Mar
50°
Apr
61°
May
72°
Jun
81°
Jul
85°
Aug
84°
Sep
79°
Oct
69°
Nov
58°
Dec
49°
Typical surface temperatures (°F), modeled historical averages (USGS 185k-lake dataset, 1980–2020). Colors flag cold-water risk: blue/amber/red = cool, caution, danger. Live and recent readings appear above where a sensor is available.