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City of La Salle, ILLa Salle, IL Weather Forecast
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| TONIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY |
 |  | | | |  |  |  |  |  | |  |
| Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy | Clearing | Mostly Sunny | Mostly Clear | Chance of Showers | Chance of Showers | Showers | Showers | Chance of Showers |
| Lo: 51°FLo: 11°C | Hi: 70°FHi: 21°C | Lo: 51°FLo: 11°C | Hi: 71°FHi: 22°C | Lo: 51°FLo: 11°C | Hi: 71°FHi: 22°C | Lo: 51°FLo: 11°C | Hi: 71°FHi: 22°C | Lo: 61°FLo: 16°C | Hi: 71°FHi: 22°C | Lo: 61°FLo: 16°C | Hi: 71°FHi: 22°C |
| POP: 20% | POP: 50% | POP: 70% | POP: 60% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 705 PM CDT Fri Sep 25 2026 
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Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 612 PM CDT Fri Sep 25 2026
Key Messages
- Near to slightly below normal temperatures are forecasted over the next several days.
- The next chance for a widespread soaking rainfall won`t come until at least the middle of next week.
Discussion
... Issued at 1244 PM CDT Fri Sep 25 2026
Over the next few days, a deepening coastal low along the northeastern seaboard on the eastern flank of an upper-level ridge over Upper Midwest will reinforce a Rex-like blocking pattern across the Great Lakes. As a result, relatively quiescent condit...