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Uniondale Weather Forecast

Temperature, wind, rain and more for Uniondale

New York, United States Of America

DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Wed 21
Jan		13:00

SSW
SSW

 13 / 17 mph 29 / 18°F 48% 1031 mb
Low level cloud: 0%
Mid level cloud: 31%
High level cloud: 100%
Most Significant Cloud Type: medium
34%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

SSW
SSW

 18 / 27 mph 34 / 23°F 61% 1027 mb
Low level cloud: 33%
Mid level cloud: 4%
High level cloud: 100%
Most Significant Cloud Type: low
46%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

SSW
SSW

 18 / 29 mph 37 / 27°F 67% 1025 mb
Low level cloud: 0%
Mid level cloud: 50%
High level cloud: 0%
Most Significant Cloud Type: medium
50%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

SSW
SSW

 17 / 26 mph 37 / 28°F 63% 1022 mb
Low level cloud: 0%
Mid level cloud: 100%
High level cloud: 0%
Most Significant Cloud Type: medium
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Thu 22
Jan		01:00

SW
SW

 18 / 35 mph 36 / 26°F 61% 1019 mb
Low level cloud: 1%
Mid level cloud: 45%
High level cloud: 0%
Most Significant Cloud Type: medium
48%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

SW
SW

 17 / 34 mph 35 / 25°F 71% 1017 mb
Low level cloud: 21%
Mid level cloud: 39%
High level cloud: 0%
Most Significant Cloud Type: low
34%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

WSW
WSW

 15 / 25 mph 35 / 25°F 76% 1018 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 13%
Most Significant Cloud Type: medium
3%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

WSW
WSW

 13 / 17 mph 38 / 29°F 80% 1019 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 71%
Most Significant Cloud Type: medium
6%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

WSW
WSW

 14 / 21 mph 40 / 32°F 72% 1017 mb
Low level cloud: 1%
Mid level cloud: 3%
High level cloud: 100%
Most Significant Cloud Type: medium
9%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

WSW
WSW

 16 / 22 mph 41 / 32°F 66% 1018 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 100%
Most Significant Cloud Type: medium
6%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

W
W

 14 / 17 mph 39 / 31°F 58% 1020 mb
Low level cloud: 0%
Mid level cloud: 17%
High level cloud: 87%
Most Significant Cloud Type: medium
20%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

W
W

 15 / 18 mph 37 / 28°F 53% 1022 mb
Low level cloud: 0%
Mid level cloud: 87%
High level cloud: 100%
Most Significant Cloud Type: medium
90%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
The 7 day weather forecast summary for Uniondale:

The outlook for Uniondale in the week ahead shows the average daytime maximum temperature will be around -2°C, with a high for the week of 5°C expected on the afternoon of Thursday 22nd. The average minimum temperature will be -8°C, dipping to its lowest on the morning of Tuesday 27th at -13°C. The week will have mostly dry days although Sunday 25th and Monday 26th are likely to see a significant amount of snow. The current forecast indicates Sunday 27th will have the most precipitation with an accumulation of around 17.0mm. On the whole winds are likely to be moderate.

The day label given represents the local day relative to the local time for the location you are looking at.
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Day

This time is corrected for local time zones and where possible for daylight saving times.
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Local Time

The wind direction we use on this page is the direction the wind is coming from, given in a 16 point compass format.
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Dir

This refers to the sustained average wind speed, normally averaged over a period of 10 minutes for up to 3 hrs.
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Speed/
Gust

Temperature from our forecast perspective are fairly well defined, they are what we would expect to measure in a standard meteorological screen (in other words, shaded and well ventilated) at 2 metres above ground level.
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Temp/
Feels Like

The relative humidity is the percent of saturation humidity, generally calculated in relation to saturated vapour density.
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Humidity

The value given is a total predicted for the previous 3 hrs and includes the time of the forecast being looked at.
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Precip Amount

The total amount of cloud as a percentage is derived from looking at cloud cover throughout the atmosphere and estimating how these combine when looked at from the ground.
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Cloud Amount

Here we try to capture the feel of the weather as an image – it will never be perfect but is useful for a quick overview.
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Weather

When we measure for forecast air pressure we are normally doing this relative to a certain height and most commonly relative to Mean Sea Level.
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Pressure