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Greenbush, IL Weather Forecast
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Greenbush Weather Forecast
| TONIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY |
 |  |  |  | | | | | | |  |  |
| Chance of T-Storm | Chance of T-Storm | Partly Cloudy | Chance of Showers | Partly Cloudy | Chance of Showers | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of Showers | Chance of Showers | Mostly Cloudy |
| Lo: 69°FLo: 21°C | Hi: 81°FHi: 27°C | Lo: 69°FLo: 21°C | Hi: 81°FHi: 27°C | Lo: 69°FLo: 21°C | Hi: 85°FHi: 29°C | Hi: 75°FHi: 24°C Lo: 69°FLo: 21°C | Hi: 75°FHi: 24°C Lo: 69°FLo: 21°C | Lo: 61°FLo: 16°C | Hi: 71°FHi: 22°C | Lo: 59°FLo: 15°C | Hi: 70°FHi: 21°C |
| POP: 50% | POP: 70% | POP: 40% | POP: 50% | POP: 70% | POP: 70% | POP: 50% | POP: 50% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 516 PM CDT Wed Sep 16 2026 
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Issued: 652 PM CDT Wed Sep 16 2026
Key Messages
- A flood watch has been issued for much of the area tonight into Thursday morning. Rainfall rates of 1-2 inches per hour at times will produce 1-3 inches of rain with localized 3-5 inches in the I- 80 and Highway 20 corridors.
- The wet weather pattern will continue through the weekend with rounds of rain which may be heavy at times. In between each round of rain there will be periods of dry weather.
- The continued wet weather will result in general rises on the Mississippi with the pote...