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City of Willoughby, OhioWilloughby, OH Weather Forecast
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Willoughby Weather Forecast
| REST OF TONIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY |
 |  |  |  | | | |  |  |  |  | |
| Mostly Cloudy | Chance of Showers | Chance of Showers | Mostly Cloudy | Chance of Showers | Chance of Showers | Chance of Showers | Chance of Showers | Partly Cloudy | Mostly Sunny | Mostly Clear | Mostly Sunny |
| Lo: 55°FLo: 13°C | Hi: 65°FHi: 18°C | Lo: 55°FLo: 13°C | Hi: 65°FHi: 18°C | Lo: 51°FLo: 11°C | Hi: 61°FHi: 16°C | Lo: 51°FLo: 11°C | Hi: 65°FHi: 18°C | Lo: 50°FLo: 10°C | Hi: 65°FHi: 18°C | Lo: 51°FLo: 11°C | Hi: 69°FHi: 21°C |
| POP: 20% | POP: 20% | POP: 50% | POP: 50% | POP: 50% | POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 132 AM EDT Mon Sep 21 2026 
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Issued: 132 AM EDT Mon Sep 21 2026
Key Messages
1) Additional rain is likely tonight into early Monday. Rain may be heavy at times and could lead to localized flooding, particularly in the southern part of the area.
2) A first taste of fall arrives this week with cooler temperatures periodic rain chances, especially on Wednesday.
Discussion
... KEY MESSAGE 1... After a brief break in showers his afternoon, another round of rain will move into the area this evening through tonight as a shortwave moves east along a slow-moving frontal ...