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Diffenbaugh-Harmon Park, IL Weather Forecast
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Diffenbaugh-Harmon Park Weather Forecast
| TONIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | WEDNESDAY | THURSDAY | THURSDAY NIGHT | FRIDAY |
 |  | | | | | | | | | | |
| Clear | Sunny | Mostly Clear | Sunny | Clear | Clear | Clear | Mostly Clear | Mostly Clear | Mostly Sunny | Mostly Clear | Mostly Clear |
| Lo: 45°FLo: 7°C | Hi: 69°FHi: 21°C | Lo: 49°FLo: 9°C | Hi: 71°FHi: 22°C | Lo: 45°FLo: 7°C | Hi: 69°FHi: 21°C Lo: 45°FLo: 7°C | Hi: 69°FHi: 21°C Lo: 45°FLo: 7°C | Hi: 71°FHi: 22°C Lo: 51°FLo: 11°C | Hi: 71°FHi: 22°C Lo: 51°FLo: 11°C | Hi: 75°FHi: 24°C | Hi: 75°FHi: 24°C Lo: 55°FLo: 13°C | Hi: 75°FHi: 24°C Lo: 55°FLo: 13°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 931 PM CDT Fri Oct 02 2026 
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Issued: 122 AM CDT Sat Oct 3 2026
Key Messages
- Pleasant early Fall weather is forecast this weekend into early next week, with dry conditions and seasonal temperatures. Temperatures warm to above normal for the second half of next week.
- Rises on area creeks, streams, and tributary rivers will continue through the weekend. Within bank rises on the Mississippi River downstream of Muscatine is likely.
Aviation
/06Z TAFS THROUGH 06Z SUNDAY/... Issued at 1224 AM CDT Sat Oct 3 2026
High pressure is forecast to shift eastward through the T...