Nassau Weather Forecast 15 Days, Weather in Nassau Today

Current weather conditions and 15 day weather forecast for Nassau, New York, USA including weather daily high/low temperature, warnings, chance of precipitation, pressure, humidity/wind chill, rain risk, wind speed, cloud, pressure, and UV index.

Current weather conditions at Nassau

21 August 2026 Friday
14 ° C / 57.2°F
Partly Cloudy
Partly Cloudy
Feels Like : 13.9 ° C / 57°F
Humidity : % 92
Pressure : 1019 mb
Wind Speed : 5 kmph / 3.1 miles from NNWNNW
Visibility : 10 km
Precipitation (rainfall) : 0 mm
Cloud (%) : 30

15 day weather forecast for Nassau, NY, USA

Weather Forecast for next 15 Days for Nassau including weather warnings, temperature, rain, wind speed, cloud, snow, wind speed and wind direction, pressure and UV index.
Here is weather for the next 15 days in Nassau, New York state, US. To see the daily forecast, scroll to the table below.
Date Weather forecast Low temperature High temperature Avg. temperature Humidity Chance of rain UV Index Sun Position Moon Position
21 August 2026 Friday Sunny Sunny 13.3 ° C
(55.9°F)
27.1 ° C
(80.7°F)
18.7 ° C
(65.6°F)
% 75 65% 7.5 Sunrise:06:07 AM
Sunset: 07:47 PM
Moonrise:04:14 PM
Moonset: Does not set today
Moon Phase
( First Quarter )
22 August 2026 Saturday Overcast Overcast 13.5 ° C
(56.2°F)
21.4 ° C
(70.6°F)
16.8 ° C
(62.2°F)
% 82 67% 5.7 Sunrise:06:08 AM
Sunset: 07:45 PM
Moonrise:05:05 PM
Moonset: 12:35 AM
Moon Phase
( Waxing Gibbous )
23 August 2026 Sunday Fog Fog 16.8 ° C
(62.3°F)
23.4 ° C
(74.1°F)
18.6 ° C
(65.4°F)
% 95 91% 7.2 Sunrise:06:10 AM
Sunset: 07:44 PM
Moonrise:05:46 PM
Moonset: 01:32 AM
Moon Phase
( Waxing Gibbous )
24 August 2026 Monday Patchy rain nearby Patchy rain nearby 11.4 ° C
(52.6°F)
22.1 ° C
(71.8°F)
17.7 ° C
(63.9°F)
% 72 57% 5 Sunrise:06:11 AM
Sunset: 07:42 PM
Moonrise:06:19 PM
Moonset: 02:33 AM
Moon Phase
( Waxing Gibbous )
25 August 2026 Tuesday Sunny Sunny 8.9 ° C
(48°F)
24.8 ° C
(76.7°F)
16.5 ° C
(61.7°F)
% 65 5% 6 Sunrise:06:12 AM
Sunset: 07:40 PM
Moonrise:06:47 PM
Moonset: 03:37 AM
Moon Phase
( Full Moon )
26 August 2026 Wednesday Sunny Sunny 9.5 ° C
(49.1°F)
25 ° C
(77.1°F)
17 ° C
(62.6°F)
% 65 7% 6 Sunrise:06:13 AM
Sunset: 07:39 PM
Moonrise:07:10 PM
Moonset: 04:41 AM
Moon Phase
( Full Moon )
27 August 2026 Thursday Overcast Overcast 13.4 ° C
(56.1°F)
26.9 ° C
(80.5°F)
19.5 ° C
(67.1°F)
% 64 13% 6 Sunrise:06:14 AM
Sunset: 07:37 PM
Moonrise:07:30 PM
Moonset: 05:45 AM
Moon Phase
( Full Moon )
28 August 2026 Friday Overcast Overcast 13.7 ° C
(56.7°F)
26.5 ° C
(79.7°F)
19.5 ° C
(67.1°F)
% 65 12% 6 Sunrise:06:15 AM
Sunset: 07:36 PM
Moonrise:07:49 PM
Moonset: 06:47 AM
Moon Phase
( Full Moon )
29 August 2026 Saturday Sunny Sunny 12.9 ° C
(55.2°F)
26.8 ° C
(80.3°F)
19.8 ° C
(67.6°F)
% 63 5% 7 Sunrise:06:16 AM
Sunset: 07:34 PM
Moonrise:08:07 PM
Moonset: 07:50 AM
Moon Phase
( Waning Gibbous )
30 August 2026 Sunday Overcast Overcast 16.7 ° C
(62°F)
23.8 ° C
(74.8°F)
20.2 ° C
(68.3°F)
% 76 65% 5 Sunrise:06:17 AM
Sunset: 07:32 PM
Moonrise:08:26 PM
Moonset: 08:53 AM
Moon Phase
( Waning Gibbous )
31 August 2026 Monday Overcast Overcast 15.5 ° C
(59.9°F)
21.2 ° C
(70.1°F)
18.1 ° C
(64.6°F)
% 88 75% 5 Sunrise:06:18 AM
Sunset: 07:31 PM
Moonrise:08:47 PM
Moonset: 09:58 AM
Moon Phase
( Waning Gibbous )
01 September 2026 Tuesday Sunny Sunny 14.4 ° C
(57.9°F)
27.6 ° C
(81.7°F)
20.4 ° C
(68.7°F)
% 78 13% 7 Sunrise:06:19 AM
Sunset: 07:29 PM
Moonrise:09:11 PM
Moonset: 11:05 AM
Moon Phase
( Waning Gibbous )
02 September 2026 Wednesday Overcast Overcast 15.4 ° C
(59.6°F)
28.2 ° C
(82.8°F)
20.2 ° C
(68.3°F)
% 85 86% 7 Sunrise:06:20 AM
Sunset: 07:27 PM
Moonrise:09:41 PM
Moonset: 12:15 PM
Moon Phase
( Last Quarter )
03 September 2026 Thursday Cloudy Cloudy 11.8 ° C
(53.3°F)
19.5 ° C
(67.2°F)
15.7 ° C
(60.2°F)
% 70 36% 5 Sunrise:06:21 AM
Sunset: 07:25 PM
Moonrise:10:20 PM
Moonset: 01:27 PM
Moon Phase
( Last Quarter )
Nassau Weather forecasts are usually fully updated every 4 hours.
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