Adelphi Academy, NY Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Adelphi Academy Weather Forecast
| THIS AFTERNOON | TONIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT |
| Rain | Rain | Mostly Cloudy | Chance of Rain | Chance of Rain | Chance of Rain | Chance of Rain | Chance of Rain | Mostly Cloudy | Chance of Showers | Chance of Showers | Chance of Showers |
| Hi: 69°FHi: 21°C | Lo: 61°FLo: 16°C | Hi: 70°FHi: 21°C | Lo: 59°FLo: 15°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: 55°FLo: 13°C | Hi: 65°FHi: 18°C | Lo: 59°FLo: 15°C |
| POP: 70% | POP: 70% | POP: 50% | POP: 50% | POP: 50% | POP: 30% | POP: 30% | POP: 30% | POP: 40% | POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 210 PM EDT Sun Sep 20 2026 

Adelphi Academy Radar Loop
Use the map search tool if you want to place a location marker on the radar map...
Adelphi Academy Weather Map
Adelphi Academy Quick Facts
Adelphi Academy Forecast Discussion
Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 801 PM EDT Sun Sep 20 2026
Key Messages
1) Periods of rain, mainly light, will come to end from NW to SE tonight with a cold frontal passage.
2) A frontal wave is expected to bring another chance of rain to the area Monday night to Tuesday along with gusty NE winds.
3) A prolonged period of NE gales is possible, especially on the ocean waters, from Tuesday through the end of the week. There is the potential for high surf, dangerous rip currents, and beach erosion.
Discussion
... .KEY MESSAGE 1... A frontal wave will pass to th...
Weather World