Current conditions and the National Weather Service 7-day forecast for Round Lake Beach, Illinois — temperature, rain chance, wind, radar and active alerts.
Saturday Aug 29 night: a low around 68°F. Sunday Aug 30: a high near 85°F and a low around 71°F. The wettest day looks like Monday Aug 31, near 0.02 in. Highs over the period run 84°F to 92°F.
| Day | High | Low | Precip |
|---|---|---|---|
| Saturday Aug 29 | — | 68° | 0.01 in |
| Sunday Aug 30 | 85° | 71° | 0.01 in |
| Monday Aug 31 | 90° | 73° | 0.02 in |
| Tuesday Sep 1 | 91° | 74° | — |
| Wednesday Sep 2 | 92° | 70° | — |
| Thursday Sep 3 | 85° | 66° | — |
| Friday Sep 4 | 84° | 67° | — |
| Saturday Sep 5 | 84° | — | — |