Red Bud, IL Weather Forecast
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Red Bud Weather Forecast
| TONIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT |
| Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Partly Sunny | Partly Cloudy | Mostly Sunny | Partly Cloudy | Partly Cloudy | Partly Cloudy | Chance of Showers | Chance of Showers | Chance of Showers |
| Lo: 69°FLo: 21°C | Hi: 81°FHi: 27°C | Lo: 61°FLo: 16°C | Hi: 75°FHi: 24°C | Lo: 55°FLo: 13°C | Hi: 75°FHi: 24°C | Lo: 51°FLo: 11°C | Hi: 75°FHi: 24°C Lo: 55°FLo: 13°C | Hi: 75°FHi: 24°C Lo: 55°FLo: 13°C | Hi: 79°FHi: 26°C Lo: 55°FLo: 13°C | Hi: 79°FHi: 26°C Lo: 55°FLo: 13°C | Lo: 55°FLo: 13°C |
| POP: 50% | POP: 40% | POP: 20% | POP: 20% | POP: 20% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 822 PM CDT Sun Sep 20 2026 

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Issued: 713 PM CDT Sun Sep 20 2026
Key Messages
- A cold front will move through the region tonight bringing showers and thunderstorms to the area.
- Starting Tuesday, seasonably cool temperatures and dry conditions are forecast for the remainder of the work week.
Aviation
/00Z TAFS THROUGH 06Z TUESDAY/... Issued at 635 PM CDT Sun Sep 20 2026
There will be an increasing chance (30-60%) for showers and a few thunderstorms at the COU/JEF and the St. Louis area terminals between 03-11Z and at UIN between 07-10Z. The heavier showers and thun...
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