Old Westbury, NY Weather Forecast
Local 7-day forecast
Partly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Old Westbury, NY in one place.
Partly sunny. High near 70, with temperatures falling to around 67 in the afternoon. Northeast wind 15 to 18 mph, with gusts as high as 30 mph.
Local Weather Overview
This forecast page for Old Westbury, NY is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Sep 22, 2026 12:28 PM EDT.
The active forecast window currently covers Sep 23 to Sep 28, 2026 for Old Westbury, NY.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Sep 23 to Sep 28, 2026
- Latest sync
- Sep 22, 2026 12:28 PM EDT
- Forecast office
- OKX
- Source
- NOAA / NWS
Daily Outlook
This Week in Old Westbury
Wednesday looks like the warmest upcoming period in Old Westbury at 70 degrees F.
Thursday Night is the coolest period ahead with temperatures near 54 degrees F.
The strongest winds are forecast for Saturday at about 16 to 22 mph N.
Precipitation is mentioned in 8 upcoming forecast periods.
Forecast Details
- Last updated
- Sep 22, 2026 12:28 PM EDT
- Coverage
- 6 days
- Time zone
- America/New_York
- Forecast office
- OKX
- Radar station
- KOKX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly cloudy, with a low around 55. Northeast wind around 16 mph, with gusts as high as 28 mph.
Partly sunny. High near 69, with temperatures falling to around 67 in the afternoon. Northeast wind 14 to 18 mph, with gusts as high as 29 mph.
A chance of rain showers after 2am. Mostly cloudy, with a low around 54. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
A chance of rain showers. Partly sunny, with a high near 69. Chance of precipitation is 40%.
A chance of rain showers. Mostly cloudy, with a low around 57. Chance of precipitation is 50%.
A chance of rain showers. Mostly cloudy, with a high near 68. Chance of precipitation is 50%.
A chance of rain showers. Mostly cloudy, with a low around 58. Chance of precipitation is 50%.
A chance of rain showers. Partly sunny, with a high near 69. Chance of precipitation is 40%.
A slight chance of rain showers. Partly cloudy, with a low around 58.
A slight chance of rain showers before 8am. Mostly sunny, with a high near 70.
Partly cloudy, with a low around 59.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Sep 23
|
Partly Sunny
|
70°F |
15 to 18 mph
NE
|
|
Wednesday Night
Sep 23
|
Mostly Cloudy
|
55°F |
16 mph
NE
|
|
Thursday
Sep 24
|
Partly Sunny
|
69°F |
14 to 18 mph
NE
|
|
Thursday Night
Sep 24
|
Mostly Cloudy then Chance Rain Showers
|
54°F |
15 mph
NE
|
|
Friday
Sep 25
|
Chance Rain Showers
|
69°F |
15 to 18 mph
N
|
|
Friday Night
Sep 25
|
Chance Rain Showers
|
57°F |
17 to 21 mph
N
|
|
Saturday
Sep 26
|
Chance Rain Showers
|
68°F |
16 to 22 mph
N
|
|
Saturday Night
Sep 26
|
Chance Rain Showers
|
58°F |
17 mph
N
|
|
Sunday
Sep 27
|
Chance Rain Showers
|
69°F |
13 to 17 mph
N
|
|
Sunday Night
Sep 27
|
Slight Chance Rain Showers
|
58°F |
12 mph
N
|
|
Monday
Sep 28
|
Slight Chance Rain Showers then Mostly Sunny
|
70°F |
12 mph
N
|
|
Monday Night
Sep 28
|
Partly Cloudy
|
59°F |
8 mph
NE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Old Westbury.
