Current conditions and the National Weather Service 7-day forecast for ZIP code 62002, Alton, Illinois — temperature, rain chance, wind, radar and alerts.
Saturday Aug 29 night: a low around 66°F. Sunday Aug 30: a high near 95°F and a low around 73°F. Highs over the period run 94°F to 100°F.
| Day | High | Low | Precip |
|---|---|---|---|
| Saturday Aug 29 | — | 66° | — |
| Sunday Aug 30 | 95° | 73° | — |
| Monday Aug 31 | 99° | 77° | — |
| Tuesday Sep 1 | 100° | 79° | — |
| Wednesday Sep 2 | 100° | 79° | — |
| Thursday Sep 3 | 99° | 76° | — |
| Friday Sep 4 | 96° | 74° | — |
| Saturday Sep 5 | 94° | — | — |