Nassau County, NY Weather Forecast
County weather hub
Sunny
Compare major city weather across Nassau County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Sunny. High near 62, with temperatures falling to around 60 in the afternoon. Northwest wind 9 to 13 mph.
County Weather Overview
This county weather page brings together forecast coverage for Nassau County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 35 of 36 mapped cities in Nassau County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Apr 11 to Apr 15, 2026
- Latest sync
- Apr 9, 2026 3:00 PM EDT
- Forecast office
- OKX
- Source
- NOAA / NWS
Daily Outlook
This Week in Nassau County
Tuesday looks like the warmest upcoming period in Nassau County at 75 degrees F.
Saturday Night is the coolest period ahead with temperatures near 43 degrees F.
The strongest winds are forecast for Monday at about 8 to 14 mph S.
Precipitation is mentioned in 3 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 9, 2026 3:00 PM EDT
- Coverage
- 5 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 clear, with a low around 43.
Mostly sunny, with a high near 56.
Mostly cloudy, with a low around 46.
Mostly cloudy, with a high near 67.
Mostly cloudy, with a low around 56.
Partly sunny, with a high near 75.
A slight chance of rain showers between 8pm and 2am. Mostly cloudy, with a low around 59.
A slight chance of rain showers after 2pm. Partly sunny, with a high near 75.
A slight chance of rain showers before 2am. Mostly cloudy, with a low around 54.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Apr 11
|
Sunny
|
62°F |
9 to 13 mph
NW
|
|
Saturday Night
Apr 11
|
Mostly Clear
|
43°F |
5 to 8 mph
N
|
|
Sunday
Apr 12
|
Mostly Sunny
|
56°F |
5 to 10 mph
E
|
|
Sunday Night
Apr 12
|
Mostly Cloudy
|
46°F |
10 mph
S
|
|
Monday
Apr 13
|
Mostly Cloudy
|
67°F |
8 to 14 mph
S
|
|
Monday Night
Apr 13
|
Mostly Cloudy
|
56°F |
9 to 14 mph
SW
|
|
Tuesday
Apr 14
|
Partly Sunny
|
75°F |
9 to 13 mph
SW
|
|
Tuesday Night
Apr 14
|
Slight Chance Rain Showers
|
59°F |
8 to 13 mph
SW
|
|
Wednesday
Apr 15
|
Partly Sunny then Slight Chance Rain Showers
|
75°F |
8 to 13 mph
SW
|
|
Wednesday Night
Apr 15
|
Slight Chance Rain Showers
|
54°F |
8 to 12 mph
SE
|
Major City Forecasts
Live forecast snapshots for major cities across Nassau County.
Coverage
Forecast coverage currently spans 35 of 36 mapped cities in Nassau County.
Largest mapped city population in this region: 42,705.
