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Pekin Lake Weather Forecast
| THIS AFTERNOON | TONIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT |
 |  | |  |  |  | | | | |  |  |
| Mostly Sunny | Patchy Fog | Patchy Fog | Partly Cloudy | Chance of Showers | Mostly Clear | Sunny | Mostly Clear | Mostly Clear | Partly Cloudy | Partly Sunny | Chance of Showers |
| Hi: 79°FHi: 26°C | Lo: 59°FLo: 15°C | Hi: 81°FHi: 27°C | Lo: 65°FLo: 18°C | Hi: 85°FHi: 29°C | Lo: 61°FLo: 16°C | Hi: 81°FHi: 27°C | Hi: 85°FHi: 29°C Lo: 60°FLo: 16°C | Hi: 85°FHi: 29°C Lo: 60°FLo: 16°C | Lo: 61°FLo: 16°C | Hi: 85°FHi: 29°C | Lo: 69°FLo: 21°C |
| POP: 30% | POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1237 PM CDT Mon Aug 24 2026 
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Issued: 1222 PM CDT Mon Aug 24 2026
Key Messages
- Comfortable, low-impact weather persists through Tuesday.
- Thunderstorm chances (20-40%) return Wednesday evening, with damaging winds and hail as the main threats. Flash flooding is not a risk.
- Pleasant and dry weather is anticipated from Thursday into Saturday, followed by an approaching heat dome early next week that could drive heat index values up to 100 degrees.
Discussion
... Issued at 1219 PM CDT Mon Aug 24 2026
Quiet and low-impact weather will persist through Tuesday under the ...