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Pottstown Weather Forecast
| TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY |
 | |  |  | |  |  | | |  | | |
| Patchy Fog | Patchy Fog | Partly Cloudy | Partly Sunny | Partly Cloudy | Mostly Sunny | Chance of Showers | Mostly Sunny | Chance of Showers | Showers | Showers | Showers |
| Lo: 61°FLo: 16°C | Hi: 81°FHi: 27°C | Lo: 65°FLo: 18°C | Hi: 85°FHi: 29°C | Lo: 61°FLo: 16°C | Hi: 81°FHi: 27°C | Lo: 61°FLo: 16°C | Hi: 85°FHi: 29°C | Lo: 69°FLo: 21°C | Hi: 85°FHi: 29°C | Hi: 79°FHi: 26°C Lo: 61°FLo: 16°C | Hi: 79°FHi: 26°C Lo: 61°FLo: 16°C |
| POP: 30% | POP: 30% | POP: 60% | POP: 60% | POP: 60% |
POP = Probability of Precipitation.
Weather Outlook Updated: 602 PM CDT Thu Sep 10 2026 
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Issued: 631 PM CDT Thu Sep 10 2026
Key Messages
- Scattered rain showers across central and southeast Illinois will diminish late this afternoon.
- Unseasonably warm conditions return Saturday through Tuesday, sending afternoon temperatures into the upper 80s and lower 90s.
Discussion
... Issued at 1240 PM CDT Thu Sep 10 2026
A shortwave trough and associated frontal boundary currently traversing the area has brought widespread rain showers to central and southeast Illinois through midday. Synoptic scale ascent has weakened over the past...