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Union County Weather Forecast
| TODAY | TONIGHT | COLUMBUS DAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT |
 |  | |  |  |  |  |  | | |  | |
| Chance of T-Storm | Patchy Fog | Patchy Fog | Mostly Clear | Mostly Sunny | Partly Cloudy | Showers Likely | Showers Likely | Chance of Showers | Chance of Showers | Chance of Showers | Chance of Showers |
| Hi: 69°FHi: 21°C | Lo: 55°FLo: 13°C | Hi: 79°FHi: 26°C | Lo: 61°FLo: 16°C | Hi: 85°FHi: 29°C | Lo: 61°FLo: 16°C | Hi: 75°FHi: 24°C | Lo: 55°FLo: 13°C | Hi: 71°FHi: 22°C | Lo: 51°FLo: 11°C | Hi: 65°FHi: 18°C | Lo: 40°FLo: 4°C |
| POP: 90% | POP: 60% | POP: 60% | POP: 40% | POP: 50% | POP: 40% | POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 235 AM EDT Sun Oct 11 2026 
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Issued: 300 AM EDT Sun Oct 11 2026
Key Messages
1) Remnants from Hurricane Isaias will continue to move across the Ohio Valley through the day today bringing rainfall to the area. Fog will develop Sunday night into Monday morning as this system departs.
2) After a quiet start to the workweek, an active pattern arrives by Wednesday resulting in fluctuating temperatures and multiple days with precipitation chances.
Discussion
... Key Message 1)
Rain will continue at times through the day today before tapering off. Instability is limited...