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McLean Playground Weather Forecast
| OVERNIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY |
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| Mostly Cloudy | Chance of Showers | Chance of T-Storm | Showers | Showers | Chance of Showers | Mostly Cloudy | Mostly Cloudy | Mostly Cloudy | Mostly Sunny | Mostly Cloudy | Partly Sunny |
| Lo: 65°FLo: 18°C | Hi: 75°FHi: 24°C | Lo: 61°FLo: 16°C | Hi: 65°FHi: 18°C | 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: 65°FHi: 18°C | Lo: 55°FLo: 13°C | Hi: 65°FHi: 18°C |
| POP: 30% | POP: 80% | POP: 90% | POP: 80% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 225 AM EDT Mon Sep 21 2026 
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Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 939 PM EDT Sun Sep 20 2026
Key Messages
- 1) Rounds of showers and decreasing temperatures through Tuesday.
- 2) Cool & wet conditions persist through the end of the week, with drier conditions heading into the weekend.
Discussion
... KEY MESSAGE 1...Rounds of showers and decreasing temperatures through Tuesday.
Showers have been much less common than earlier CAM runs suggested. This is changing as of mid evening, with showers along the surface cold front sinking southward from Pennsylvania, and a few additional showers near the ...