Pool season · Illinois
Schaumburg Pool Season: the Year on One Bar
Last updated: July 15, 2026 · dates · water temp
This is the one-page view of Schaumburg's pool year: both model windows, the estimated water-temperature curve, and today's live position on the season bar. The detailed checklists live on the opening and closing guides; this page is the calendar you check between them.
Reading it takes ten seconds: 52 dots, one per week. Solid teal is Schaumburg's swim season; the hollow teal run before it (April 29 to May 20) is when to open; the hollow amber run after is when to close, with October 4 as the deadline; gray is the covered season. Today's marker shows where you stand in that cycle right now.
The Schaumburg pool calendar
Opening — target May 6
Open by May 6 — a two-week head start on the May 20 crossing keeps startup chemistry small and beats the local service rush.
Closing — deadline October 4
Hold the cover until September 24, then winterize by October 4, a week ahead of the October 13 freeze normal. Late and cold beats early and warm.
Estimated water temperature by month
Monthly averages of the site's water model run on Schaumburg'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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 25° | 24° | 32° | 43° | 55° | 66° | 73° | 73° | 69° | 58° | 46° | 33° |
The curve peaks near 74°F — comfortable-water months here usually involve a heater or a solar cover.
Email me when Schaumburg hits the closing window
Data: NOAA 1991–2020 climate normals via Streamwood (4.8 mi); live outlook by Open-Meteo. Attribution: sources · assumptions: methodology.