The Swamps, IL Weather Forecast
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The Swamps Weather Forecast
| TONIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT |
| Patchy Fog | Patchy Fog | Mostly Clear | Mostly Sunny | Partly Cloudy | Mostly Sunny | Mostly Clear | Mostly Clear | Mostly Clear | Partly Cloudy | Chance of Showers | Chance of Showers |
| Lo: 55°FLo: 13°C | Hi: 80°FHi: 27°C | Lo: 60°FLo: 16°C | Hi: 81°FHi: 27°C | Lo: 65°FLo: 18°C | Hi: 85°FHi: 29°C | Hi: 81°FHi: 27°C Lo: 61°FLo: 16°C | Hi: 81°FHi: 27°C Lo: 61°FLo: 16°C | Hi: 81°FHi: 27°C Lo: 61°FLo: 16°C | Lo: 65°FLo: 18°C | Hi: 81°FHi: 27°C | Hi: 85°FHi: 29°C Lo: 69°FLo: 21°C |
| POP: 30% | POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 546 PM CDT Sun Aug 23 2026 

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Issued: 643 PM CDT Sun Aug 23 2026
Key Messages
- Quiet weather and pleasant temperatures and humidity continue into Monday.
- Mainly dry this week with 20 to 40 percent chances of showers and storms Wednesday and again next Saturday.
Aviation
/00Z TAFS THROUGH 00Z TUESDAY/... Issued at 643 PM CDT Sun Aug 23 2026
Largely VFR conditions are expected throughout the TAF period, under light and variable winds. The only possible exception will be late tonight as patchy fog could develop over the area. The latest NBM probabilities of MVFR visi...
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