Water temperature in Crystal Lake (IL) in April
Is it warm enough to swim in Crystal Lake in April? Average water temperature in Crystal Lake in April is 45.9°F and therefore is not suitable for comfortable swimming. The warmest water in Crystal Lake in April is 59°F, and the coldest is 37.4°F. To find out the water temperature today and in the coming days, go to Current water temperature in Crystal Lake
Changes water temperature in Crystal Lake in April 2025, 2024
To get an accurate forecast for the water temperature in Crystal Lake for any chosen month, compare two years within a 10 year range using the chart below.
You can choose any other years:
| Day | 2025 | 2024 |
|---|---|---|
| April 1 | 44.6°F | 39.2°F |
| April 2 | 44.6°F | 39.2°F |
| April 3 | 44.6°F | 39.2°F |
| April 4 | 42.8°F | 39.2°F |
| April 5 | 41°F | 39.2°F |
| April 6 | 41°F | 41°F |
| April 7 | 39.2°F | 42.8°F |
| April 8 | 39.2°F | 44.6°F |
| April 9 | 39.2°F | 44.6°F |
| April 10 | 39.2°F | 46.4°F |
| April 11 | 41°F | 46.4°F |
| April 12 | 42.8°F | 46.4°F |
| April 13 | 46.4°F | 46.4°F |
| April 14 | 46.4°F | 48.2°F |
| April 15 | 46.4°F | 48.2°F |
| Day | 2025 | 2024 |
|---|---|---|
| April 16 | 46.4°F | 50°F |
| April 17 | 48.2°F | 50°F |
| April 18 | 48.2°F | 51.8°F |
| April 19 | 48.2°F | 51.8°F |
| April 20 | 48.2°F | 50°F |
| April 21 | 48.2°F | 50°F |
| April 22 | 50°F | 46.4°F |
| April 23 | 50°F | 46.4°F |
| April 24 | 50°F | 46.4°F |
| April 25 | 51.8°F | 50°F |
| April 26 | 51.8°F | 53.6°F |
| April 27 | 51.8°F | 53.6°F |
| April 28 | 53.6°F | 55.4°F |
| April 29 | 55.4°F | 59°F |
| April 30 | 55.4°F | 59°F |
Crystal Lake water temperature during other months:
You can also view information about water temperature for other months by clicking on the month button below
