Current conditions and the National Weather Service 7-day forecast for ZIP code 15821, St. Marys, Pennsylvania — temperature, rain chance, wind, radar and alerts.
Saturday Aug 29 night: a low around 59°F. Sunday Aug 30: a high near 80°F and a low around 63°F. The wettest day looks like Monday Aug 31, near 0.14 in. Highs over the period run 76°F to 86°F.
| Day | High | Low | Precip |
|---|---|---|---|
| Saturday Aug 29 | — | 59° | — |
| Sunday Aug 30 | 80° | 63° | 0.03 in |
| Monday Aug 31 | 81° | 67° | 0.14 in |
| Tuesday Sep 1 | 86° | 68° | — |
| Wednesday Sep 2 | 86° | 67° | — |
| Thursday Sep 3 | 82° | 62° | — |
| Friday Sep 4 | 77° | 59° | — |
| Saturday Sep 5 | 76° | — | — |