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Lafayette Square Weather Forecast
| REST OF TONIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY |
 |  |  |  |  | |  | | | | | |
| Clear | Sunny | Patchy Fog | Partly Sunny | Partly Cloudy | Mostly Cloudy | Mostly Cloudy | Mostly Sunny | Mostly Clear | Mostly Clear | Mostly Clear | Mostly Clear |
| Lo: 39°FLo: 4°C | Hi: 59°FHi: 15°C | Lo: 41°FLo: 5°C | Hi: 60°FHi: 16°C | Lo: 41°FLo: 5°C | Hi: 55°FHi: 13°C Lo: 40°FLo: 4°C | Hi: 55°FHi: 13°C Lo: 40°FLo: 4°C | Hi: 61°FHi: 16°C | Hi: 55°FHi: 13°C Lo: 41°FLo: 5°C | Hi: 55°FHi: 13°C Lo: 41°FLo: 5°C | Hi: 55°FHi: 13°C Lo: 39°FLo: 4°C | Hi: 55°FHi: 13°C Lo: 39°FLo: 4°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 102 AM EDT Mon Oct 19 2026 
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Issued: 417 AM EDT Mon Oct 19 2026
Key Messages
- Dry through most of the day today with rain chances increasing overnight towards the outer Cape and Nantucket.
- Chances for rainfall towards coastal areas for much of the workweek due to an offshore nor`easter well to the south. Main impacts from this system will be marine-based: rough seas, beach erosion, and strong winds.
Discussion
... KEY MESSAGE 1...Dry through most of the day today with rain chances increasing overnight towards the outer Cape and Nantucket.
Broad high pressure exte...