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De Graff Weather Forecast
| OVERNIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY |
 |  |  | | |  |  |  | | | |  |
| Partly Cloudy | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Showers | Chance of Showers | Chance of Showers | Chance of Showers | Chance of Showers | Chance of Showers | Partly Cloudy |
| Lo: 55°FLo: 13°C | Hi: 79°FHi: 26°C | Lo: 65°FLo: 18°C | Hi: 79°FHi: 26°C | Lo: 59°FLo: 15°C | Hi: 69°FHi: 21°C | Lo: 55°FLo: 13°C | Hi: 69°FHi: 21°C | Lo: 55°FLo: 13°C | Hi: 69°FHi: 21°C | Lo: 55°FLo: 13°C | Hi: 69°FHi: 21°C |
| POP: 50% | POP: 70% | POP: 90% | POP: 80% | POP: 60% | POP: 50% | POP: 40% | POP: 50% | POP: 50% | POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 714 PM EDT Fri Sep 18 2026 
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Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 258 AM EDT Sat Sep 19 2026
Key Messages
1) Showers and thunderstorms will be possible this afternoon and evening. Some storms could have strong to damaging winds.
2) Additional rounds of showers and thunderstorms will occur through Sunday night with a potential for heavy rain.
3) Cooler and showery weather will occur for the first half of the week.
Discussion
... KEY MESSAGE 1) While the primary active zone of convection will be across the lower Great Lakes today, there will be a weak disturbance south of there that will move ...