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Norristown Weather Forecast

Temperature, wind, rain and more for Norristown

Pennsylvania, United States Of America

DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Mon 09
Jun		10:00

ENE
ENE

 5 / 6 mph 67 / 67°F 96% 1012 mb
Low level cloud: 98%
Mid level cloud: 12%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

ENE
ENE

 4 / 5 mph 71 / 70°F 86% 1012 mb
Low level cloud: 92%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: low
93%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

E
E

 6 / 6 mph 72 / 76°F 80% 1011 mb
Low level cloud: 87%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: low
88%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

ENE
ENE

 6 / 7 mph 71 / 69°F 87% 1012 mb
Low level cloud: 72%
Mid level cloud: 5%
High level cloud: 19%
Most Significant Cloud Type: low
76%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

ESE
ESE

 6 / 6 mph 67 / 67°F 96% 1012 mb
Low level cloud: 65%
Mid level cloud: 9%
High level cloud: 63%
Most Significant Cloud Type: low
76%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Tue 10
Jun		01:00

E
E

 4 / 6 mph 63 / 63°F 99% 1011 mb
Low level cloud: 95%
Mid level cloud: 27%
High level cloud: 89%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
04:00

ESE
ESE

 7 / 11 mph 63 / 63°F 99% 1010 mb
Low level cloud: 97%
Mid level cloud: 44%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
07:00

N
N

 3 / 5 mph 64 / 64°F 99% 1011 mb
Low level cloud: 92%
Mid level cloud: 46%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
10:00

N
N

 1 / 1 mph 67 / 66°F 97% 1011 mb
Low level cloud: 90%
Mid level cloud: 56%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
13:00

WSW
WSW

 3 / 3 mph 74 / 77°F 83% 1011 mb
Low level cloud: 88%
Mid level cloud: 24%
High level cloud: 13%
Most Significant Cloud Type: low
98%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

W
W

 7 / 9 mph 80 / 80°F 72% 1011 mb
Low level cloud: 31%
Mid level cloud: 8%
High level cloud: 0%
Most Significant Cloud Type: low
33%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

WSW
WSW

 3 / 6 mph 75 / 76°F 83% 1013 mb
Low level cloud: 0%
Mid level cloud: 14%
High level cloud: 0%
Most Significant Cloud Type: medium
14%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

WSW
WSW

 4 / 8 mph 67 / 67°F 87% 1015 mb
Low level cloud: 0%
Mid level cloud: 33%
High level cloud: 0%
Most Significant Cloud Type: medium
32%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
The 7 day weather forecast summary for Norristown:

Over the next 7 days the Norristown forecast suggests the average daytime maximum temperature will be around 24°C, with a high for the week of 31°C expected on the afternoon of Thursday 12th. The mean minimum temperature will be 17°C, dipping to its lowest on the morning of Sunday 15th at 14°C. The week ahead will have mostly dry days although Tuesday 10th and Saturday 14th are likely to see a significant amount of rain. It looks like Tuesday 15th will have the most precipitation with an accumulation of around 11.0mm. 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