Pool season · Minnesota
Lakeville Pool Season: the Year on One Bar
Last updated: July 15, 2026 · dates · water temp
Lakeville's whole pool calendar, condensed: when the water warms, when it cools, and where today falls between those edges. Use the opening guide and closing guide for the step-by-step work; keep this page for the dates.
Reading it takes ten seconds: 52 dots, one per week. Solid teal is Lakeville's swim season; the hollow teal run before it (May 3 to May 24) is when to open; the hollow amber run after is when to close, with September 29 as the deadline; gray is the covered season. Today's marker shows where you stand in that cycle right now.
The Lakeville pool calendar
Opening — target May 10
Open by May 10 — a two-week head start on the May 24 crossing keeps startup chemistry small and beats the local service rush.
Closing — deadline September 29
The window opens September 19 once water leaves the algae zone; the model deadline is September 29, a week ahead of the October 10 freeze normal.
Estimated water temperature by month
Monthly averages of the site's water model run on Lakeville's own normals — the shape of a typical year, not a forecast. The widget above shows where the current year actually sits.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 17° | 17° | 27° | 40° | 53° | 64° | 71° | 71° | 66° | 56° | 41° | 27° |
The curve peaks near 72°F — comfortable-water months here usually involve a heater or a solar cover.
Email me when Lakeville hits the closing window
Data: NOAA 1991–2020 climate normals via Farmington 3 NW (4.0 mi); live outlook by Open-Meteo. Attribution: sources · assumptions: methodology.