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Janssen, IL Weather Forecast
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Janssen Weather Forecast
| TONIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | VETERANS DAY | WEDNESDAY NIGHT | THURSDAY |
 |  |  | | | | | | |  | | |
| Mostly Clear | Mostly Sunny | Partly Cloudy | Sunny | Mostly Clear | Mostly Sunny | Mostly Clear | Mostly Clear | Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy |
| Lo: 29°FLo: -2°C | Hi: 51°FHi: 11°C | Lo: 35°FLo: 2°C | Hi: 59°FHi: 15°C | Lo: 31°FLo: -1°C | Hi: 61°FHi: 16°C | Hi: 60°FHi: 16°C Lo: 39°FLo: 4°C | Hi: 60°FHi: 16°C Lo: 39°FLo: 4°C | Hi: 55°FHi: 13°C Lo: 35°FLo: 2°C | Hi: 55°FHi: 13°C Lo: 35°FLo: 2°C | Lo: 31°FLo: -1°C | Hi: 51°FHi: 11°C Lo: 31°FLo: -1°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 851 PM CST Fri Nov 06 2026 
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Issued: 1111 PM CST Fri Nov 6 2026
Key Messages
- A warming trend will last into the middle of next week, followed by a return to cooler/near normal temperatures by week`s end.
Aviation
/06Z TAFS THROUGH 06Z SUNDAY/... Issued at 1110 PM CST Fri Nov 6 2026
Cold, quiet, VFR/clear weather will be in place overnight, and last through Saturday morning. Afternoon winds will shift towards WSW around 5-10kts, but a continuation of the VFR/clear is expected this weekend in all areas.
Watches / Warnings / Advisories
/WARNINGS/ADVISORIES... IA...No...