Weather World
Hillcrest, IL Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Hillcrest Weather Forecast
| REST OF TONIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY |
 |  |  |  | | |  | | | | | |
| Chance of Showers | Chance of Showers | Partly Cloudy | Mostly Cloudy | Partly Cloudy | Mostly Cloudy | Mostly Cloudy | Mostly Cloudy | Mostly Cloudy | Mostly Cloudy | Mostly Cloudy | Mostly Cloudy |
| Lo: 55°FLo: 13°C | Hi: 61°FHi: 16°C | Lo: 49°FLo: 9°C | Hi: 69°FHi: 21°C | Lo: 50°FLo: 10°C | Hi: 69°FHi: 21°C | Lo: 50°FLo: 10°C | Hi: 69°FHi: 21°C | Lo: 49°FLo: 9°C | Hi: 65°FHi: 18°C | Lo: 50°FLo: 10°C | Hi: 70°FHi: 21°C |
| POP: 30% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 121 AM CDT Tue Sep 22 2026 
Hillcrest Radar Loop
Use the map search tool if you want to place a location marker on the radar map...
Hillcrest Weather Map
Hillcrest Quick Facts
Hillcrest Forecast Discussion
Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 159 AM CDT Tue Sep 22 2026
Key Messages
- Spotty sprinkles/light showers possible in some areas today.
- Below average temperatures expected for the remainder of the work week.
Discussion
... Issued at 159 AM CDT Tue Sep 22 2026
Latest surface analysis places a broad ~1030 mb surface high from the northern Great Lakes eastward into Quebec. The western periphery of the high is progged to strengthen across the northern Lakes today, in association with strong subsidence and building mid-level heights in the wake of a positive-tilt s...