Weather World
Morrison Lake, IL Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Morrison Lake Weather Forecast
| REST OF 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 | Mostly Cloudy | Chance of Showers | Partly Cloudy | Chance of Showers | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of Showers | Mostly Cloudy | Mostly Cloudy |
| Lo: 69°FLo: 21°C | Hi: 81°FHi: 27°C | Lo: 65°FLo: 18°C | Hi: 80°FHi: 27°C | Lo: 70°FLo: 21°C | Hi: 85°FHi: 29°C | Hi: 71°FHi: 22°C Lo: 65°FLo: 18°C | Hi: 71°FHi: 22°C Lo: 65°FLo: 18°C | Lo: 61°FLo: 16°C | Hi: 71°FHi: 22°C | Hi: 71°FHi: 22°C Lo: 59°FLo: 15°C | Hi: 71°FHi: 22°C Lo: 59°FLo: 15°C |
| POP: 50% | POP: 50% | POP: 50% | POP: 50% | POP: 70% | POP: 70% | POP: 50% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 121 AM CDT Thu Sep 17 2026 
Morrison Lake Radar Loop
Use the map search tool if you want to place a location marker on the radar map...
Morrison Lake Weather Map
Morrison Lake Quick Facts
Morrison Lake Forecast Discussion
Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 1251 AM CDT Thu Sep 17 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...