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City of Mount Sterling, ILMount Sterling, IL Weather Forecast
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Mount Sterling Weather Forecast
| TONIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | VETERANS DAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY |
 |  | |  |  |  | |  | | | | |
| Mostly Clear | Patchy Fog | Mostly Clear | Sunny | Partly Cloudy | Chance of Rain | Partly Cloudy | Partly Cloudy | Partly Cloudy | Mostly Clear | Mostly Clear | Mostly Clear |
| Lo: 39°FLo: 4°C | Hi: 65°FHi: 18°C | Lo: 45°FLo: 7°C | Hi: 65°FHi: 18°C | Lo: 49°FLo: 9°C | Hi: 61°FHi: 16°C | Lo: 40°FLo: 4°C | Hi: 49°FHi: 9°C Lo: 30°FLo: -1°C | Hi: 49°FHi: 9°C Lo: 30°FLo: -1°C | Hi: 45°FHi: 7°C Lo: 29°FLo: -2°C | Hi: 45°FHi: 7°C Lo: 29°FLo: -2°C | Hi: 51°FHi: 11°C Lo: 35°FLo: 2°C |
| POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 853 PM CST Sun Nov 08 2026 
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Meteorlogic Glosserator
Instant definitions for any meteorological term.
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Issued: 948 PM CST Sun Nov 8 2026
Key Messages
- The next chance (30-40%) for light rain on comes on Wednesday.
- Temperatures will start the week above normal (highs in the 60s- 70s) and end the week below normal (highs in the 40s-50s).
Aviation
/06Z TAFS THROUGH 12Z TUESDAY/... Issued at 945 PM CST Sun Nov 8 2026
Latest guidance isn`t as bullish on fog tonight. While there may be less widespread 2-5 mile fog overall, still think IFR steam fog with visibilities at or below 1SM is likely near bodies of water before sunrise on Monday. An...