Nassau County has 130 places on myweatherrock (63 census-designated places, 62 villages, 3 towns, 2 cities), each with its own live forecast, hourly timeline, ten day outlook and radar. The hottest day in the station records is 107°F at Laguardia Ap on July 3, 1966. The coldest night is -10°F at Westchester Co Ap on January 22, 1961. The wettest day brought 8.05 inches of rain at Jfk Intl Ap on September 29, 2023. The biggest single-day snow measured 30.32 inches at Jfk Intl Ap on January 23, 2016. Those are station measurements from NOAA's daily records, 1939 to 2026, not official state records. By area the largest place is Hempstead, about 119 square miles.
About Nassau County weather
The map on the Now tab shows every Nassau County town's current temperature from our own server, one dot per town. Tap any dot, or type a town above, for that town's full forecast.
What the weather is usually like
Across the 130 Nassau County towns with station normals, the warmest month is July, when the day usually reaches 84°F, and the coldest is January, when the night usually falls to 26°F. May is the wettest, with rain on about 12 days. July afternoons run from about 83°F in Bellmore to 86°F in Baxter Estates. January nights run from about 23°F in Glen Cove to 28°F in Baxter Estates.
Means of the 1991 to 2020 station normals serving these towns, as published by NOAA; each town's page carries its own.
Where these numbers come from
Current conditions and forecast: NOAA forecast grids decoded on our own server, corrected against the nearest reporting station and our own radar. Open-Meteo is consulted only as a fallback when our server is silent.
Records: computed by myweatherrock from NOAA GHCN-Daily station records at the stations serving these towns. Measurements, not estimates.
Warnings and alerts: the National Weather Service, passed through unchanged.
Nassau County weather records
Hottest day
107°F
Laguardia Ap, July 3, 1966
Coldest night
-10°F
Westchester Co Ap, January 22, 1961
Wettest day
8.05 in
Jfk Intl Ap, September 29, 2023
Biggest snow
30.32 in
Jfk Intl Ap, January 23, 2016
Measured at the NOAA stations serving these towns, daily records 1939 to 2026. Station extremes, not official state records.
Common questions about Nassau County weather
What is the hottest temperature recorded at a Nassau County station?
107°F at Laguardia Ap on July 3, 1966, in the NOAA daily station records myweatherrock holds (1939 to 2026).
What is the coldest temperature recorded at a Nassau County station?
-10°F at Westchester Co Ap on January 22, 1961.
What is the most rain a Nassau County station has measured in one day?
8.05 inches at Jfk Intl Ap on September 29, 2023.
What is the biggest one-day snowfall at a Nassau County station?
30.32 inches at Jfk Intl Ap on January 23, 2016.
How many Nassau County towns have a weather page here?
130: 63 census-designated places, 62 villages, 3 towns, 2 cities. Each page carries current conditions, the hourly timeline, the ten day outlook, radar, and where a station sits close enough, measured records.
Where does the Nassau County forecast come from?
NOAA forecast grids (the National Weather Service digital forecast, the National Blend of Models, HRRR and GFS) decoded on our own server, corrected against the nearest reporting station and our own radar. Open-Meteo is consulted only as a fallback when our server is silent.
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