La Harpe, IL Weather Forecast
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La Harpe Weather Forecast
| TONIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | MONDAY | TUESDAY | WEDNESDAY |
| Mostly Clear | Sunny | Clear | Sunny | Partly Cloudy | Mostly Sunny | Mostly Cloudy | Mostly Cloudy | Mostly Cloudy | Mostly Cloudy | Mostly Cloudy |
| Lo: 49°FLo: 9°C | Hi: 79°FHi: 26°C | Lo: 50°FLo: 10°C | Hi: 75°FHi: 24°C | Lo: 51°FLo: 11°C | Hi: 75°FHi: 24°C | Hi: 75°FHi: 24°C Lo: 51°FLo: 11°C | Hi: 75°FHi: 24°C Lo: 51°FLo: 11°C | Hi: 75°FHi: 24°C Lo: 51°FLo: 11°C | Hi: 69°FHi: 21°C Lo: 49°FLo: 9°C | Hi: 69°FHi: 21°C Lo: 49°FLo: 9°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 551 PM CDT Wed Oct 21 2026 

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Issued: 607 PM CDT Wed Oct 21 2026
Key Messages
- Above normal temperatures are forecast through the upcoming weekend with a brief cool down possible early next week.
- There are low chances of rain Monday and Monday night.
Aviation
/00Z TAFS THROUGH 00Z THURSDAY/... Issued at 606 PM CDT Wed Oct 21 2026
Variable winds of 5 knots or less will be seen through sunrise Thursday. After 15z/22 winds around 5 knots from the southeast will be seen.
Watches / Warnings / Advisories
/WARNINGS/ADVISORIES... IA...None. IL...None. MO...None.
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