Weather WorldJohnson Slough, IL Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Johnson Slough Weather Forecast
| REST OF TONIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY |
 |  |  | |  |  |  | | |  | | |
| Cloudy | Patchy Drizzle | Chance of Showers | Showers | Chance of T-Storm | Showers Likely | Mostly Cloudy | Chance of Rain | Mostly Cloudy | Mostly Cloudy | Mostly Cloudy | Mostly Cloudy |
| Lo: 55°FLo: 13°C | Hi: 61°FHi: 16°C | Lo: 60°FLo: 16°C | Hi: 71°FHi: 22°C | Lo: 59°FLo: 15°C | Hi: 65°FHi: 18°C | Lo: 49°FLo: 9°C | Hi: 61°FHi: 16°C | Lo: 45°FLo: 7°C | Hi: 59°FHi: 15°C | Lo: 41°FLo: 5°C | Hi: 59°FHi: 15°C |
| POP: 20% | POP: 90% | POP: 100% | POP: 70% | POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 136 AM CST Mon Nov 02 2026 
Johnson Slough Radar Loop
Use the map search tool if you want to place a location marker on the radar map...
Johnson Slough Weather Map
Johnson Slough Quick Facts
Johnson Slough Forecast Discussion
Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 1127 PM CST Sun Nov 1 2026
Key Messages
- Periods of showers or sprinkles continue this afternoon. Additional showers and drizzle possible this evening and through the day on Monday.
- Greatest chances for more widespread showers and perhaps a few thunderstorms late Tuesday afternoon and evening/early overnight.
- Warmer conditions on Tuesday expected to eventually trend slightly below average by next weekend.
Discussion
... Issued at 153 PM CST Sun Nov 1 2026
Broad mid-level troughing across the region, combined with numerous embe...