Weather WorldColusa, IL Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Colusa Weather Forecast
| REST OF TODAY | TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT |
 |  |  | | |  |  | |  |  | | |
| Partly Sunny | Partly Cloudy | Chance of Showers | Partly Cloudy | Partly Sunny | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Showers | Chance of Showers | Mostly Cloudy | Partly Cloudy |
| Hi: 85°FHi: 29°C | Lo: 69°FLo: 21°C | Hi: 85°FHi: 29°C | Lo: 71°FLo: 22°C | Hi: 89°FHi: 32°C | Lo: 69°FLo: 21°C | Hi: 79°FHi: 26°C | Lo: 61°FLo: 16°C | Hi: 70°FHi: 21°C | Lo: 59°FLo: 15°C | Hi: 70°FHi: 21°C | Hi: 75°FHi: 24°C Lo: 55°FLo: 13°C |
| POP: 40% | POP: 70% | POP: 50% | POP: 70% | POP: 70% | POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 836 AM CDT Thu Sep 17 2026 
Colusa Radar Loop
Use the map search tool if you want to place a location marker on the radar map...
Colusa Weather Map
Colusa Quick Facts
Colusa Forecast Discussion
Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 942 AM CDT Thu Sep 17 2026
Key Messages
- The wet weather pattern will continue through the weekend with rounds of rain which may be heavy at times. There will be periods of dry weather between each round.
- The repeated rounds of rain will result in general rises on the Mississippi River with the potential for river flooding on tributary rivers. Refer to the hydrology section for more information.
Aviation
/12Z TAFS THROUGH 12Z FRIDAY/... Issued at 642 AM CDT Thu Sep 17 2026
Variety of conditions across the TAF sites today. Tsra...