Smith Mountain Lake level graph, updated hourly. Also shows current level and trend (rise or fall rate), and now also water temperature!

Brought to you by the author of SmithMountainLakeLevel.com.

Select date ranges: 3 days, 1 week, 1 month, 1 year, or a custom range.

Sign up for free text (SMS) and/or email alerts.

Tap anywhere in the graph to see the exact date, time, and level at that moment.

Custom Level Markers! Define your own colored level lines for the chart. Access this feature from the new Settings screen.

Tap any special level (any that are surrounded by a blue box) on the Y axis (right side) to see its meaning.