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Prospect Park, IL Weather Forecast
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Prospect Park Weather Forecast
| TODAY | TONIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT |
 |  | |  |  | |  |  | | | |  |
| Mostly Cloudy | Mostly Cloudy | Partly Sunny | Partly Cloudy | Mostly Sunny | Partly Cloudy | Chance of Showers | Showers | Showers | Showers | Showers | Chance of Showers |
| Hi: 69°FHi: 21°C | Lo: 55°FLo: 13°C | Hi: 70°FHi: 21°C | Lo: 55°FLo: 13°C | Hi: 71°FHi: 22°C | Lo: 59°FLo: 15°C | Hi: 71°FHi: 22°C | Lo: 61°FLo: 16°C | Hi: 71°FHi: 22°C | Lo: 61°FLo: 16°C | Hi: 70°FHi: 21°C | Lo: 59°FLo: 15°C |
| POP: 50% | POP: 70% | POP: 70% | POP: 70% | POP: 70% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 446 AM CDT Sat Sep 26 2026 
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Issued: 553 AM CDT Sat Sep 26 2026
Key Messages
- Light rain will be seen in areas west of the Mississippi River through Saturday night, with mostly dry conditions moving in Sunday through Monday.
- Another active weather pattern will set up in the middle of the upcoming work week, bringing the potential for rounds of heavy rainfall and thunderstorms to the area.
- Temperatures will remain near to slightly above seasonal norms through the next week.
Aviation
/12Z TAFS THROUGH 12Z SUNDAY/... Issued at 551 AM CDT Sat Sep 26 2026
VFR conditio...