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www.weatherandclimate.info
The table shows the combined weather forecast in Philadelphia for three days ahead, automatically compiled according to several independent sources. The time is local. The atmospheric pressure in mm of mercury - at the level of the city (station).
The indicators of Tef (effective temperature), Tefs (effective sun temperature) and verbal characteristics of weather comfort are given (see explanations below).

Weather in Philadelphia

Date Time Weather type Air temperature, °C Atmospheric pressure Wind Precipitation, mm Tef, °C Tefs, °C Weather comfort
23.01
Fri
day
12 h
Partly cloudy -1 767 W
3 m/s
0.0 -4 -4
23.01
Fri
day
15 h
Partly cloudy +1 768 W
4 m/s
0.0 -3 -2
23.01
Fri
even
18 h
Partly cloudy +2 766 W
5 m/s
0.0 -2 -1
23.01
Fri
even
21 h
Mostly cloudy +2 767 NW
5 m/s
0.0 -2 -2
24.01
Sat
night
00 h
Mostly cloudy -1 770 NW
7 m/s
0.0 -7 -7
24.01
Sat
night
03 h
Partly cloudy -8 773 NW
7 m/s
0.0 -15 -15
24.01
Sat
morn
06 h
Light cloudy -10 775 NW
6 m/s
0.0 -18 -18
24.01
Sat
morn
09 h
Clear -11 776 N
5 m/s
0.0 -19 -19
24.01
Sat
day
12 h
Light cloudy -12 778 N
5 m/s
0.0 -19 -19
24.01
Sat
day
15 h
Partly cloudy -11 779 N
4 m/s
0.0 -17 -16
24.01
Sat
even
18 h
Light cloudy -9 778 N
4 m/s
0.0 -14 -12
24.01
Sat
even
21 h
Mostly cloudy -8 778 W
3 m/s
0.0 -13 -13
25.01
Sun
night
00 h
Mostly cloudy -8 778 N
3 m/s
0.0 -12 -12
25.01
Sun
night
03 h
Cloudy -8 778 NE
2 m/s
0.0 -11 -11
25.01
Sun
morn
06 h
Cloudy -8 778 NE
2 m/s
0.0 -12 -12
25.01
Sun
morn
09 h
Light snow -9 777 NE
2 m/s
0.3 -13 -13
25.01
Sun
day
12 h
Snow -10 776 NE
4 m/s
1.9 -16 -16
25.01
Sun
day
15 h
Heavy snow -9 773 NE
4 m/s
3.4 -15 -15
25.01
Sun
even
18 h
Heavy snow -9 768 NE
6 m/s
5.6 -16 -16
25.01
Sun
even
21 h
Heavy snow -8 764 NE
6 m/s
6.9 -15 -15
26.01
Mon
night
00 h
Snow -5 759 NE
6 m/s
5.0 -11 -11
26.01
Mon
night
03 h
Snow -3 756 NE
6 m/s
4.8 -9 -9
26.01
Mon
morn
06 h
Light snow -10 760 NW
5 m/s
0.0 -17 -17
Fri, 23.01
Fri
Fri
Fri
Fri
Sat
Sat
Sat
Sat
12 h
15 h
18 h
21 h
00 h
03 h
06 h
09 h
Air temperature,°С
-1
+1
+2
+2
-1
-8
-10
-11
Atmospheric pressure
767
768
766
767
770
773
775
776
Wind
W
3 m/s
W
4 m/s
W
5 m/s
NW
5 m/s
NW
7 m/s
NW
7 m/s
NW
6 m/s
N
5 m/s
Precipitation, mm
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
Tef,°C
-4
-3
-2
-2
-7
-15
-18
-19
Tefs,°C
-4
-2
-1
-2
-7
-15
-18
-19
Weather comfort
 
 
 
 
 
 
 
 
Sat
Sat
Sat
Sat
Sun
Sun
Sun
Sun
12 h
15 h
18 h
21 h
00 h
03 h
06 h
09 h
Air temperature,°С
-12
-11
-9
-8
-8
-8
-8
-9
Atmospheric pressure
778
779
778
778
778
778
778
777
Wind
N
5 m/s
N
4 m/s
N
4 m/s
W
3 m/s
N
3 m/s
NE
2 m/s
NE
2 m/s
NE
2 m/s
Precipitation, mm
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.3
Tef,°C
-19
-17
-14
-13
-12
-11
-12
-13
Tefs,°C
-19
-16
-12
-13
-12
-11
-12
-13
Weather comfort
 
 
 
 
 
 
 
 
Sun
Sun
Sun
Sun
Mon
Mon
Mon
12 h
15 h
18 h
21 h
00 h
03 h
06 h
Air temperature,°С
-10
-9
-9
-8
-5
-3
-10
Atmospheric pressure
776
773
768
764
759
756
760
Wind
NE
4 m/s
NE
4 m/s
NE
6 m/s
NE
6 m/s
NE
6 m/s
NE
6 m/s
NW
5 m/s
Precipitation, mm
1.9
3.4
5.6
6.9
5.0
4.8
0.0
Tef,°C
-16
-15
-16
-15
-11
-9
-17
Tefs,°C
-16
-15
-16
-15
-11
-9
-17
Weather comfort
 
 
 
 
 
 
 
 
  • Fri, 23.01
  • Sat, 24.01
  • Sun, 25.01
Location of a geographical point Philadelphia (Pennsylvania, USA): latitude 39.8683 longitude -75.2311 height above sea level 3 m.
Navigation:
Notes:
Tef - Effective temperature - the temperature felt by a seasonally dressed person in the shade. The calculation takes into account the influence of humidity, wind speed and atmospheric pressure on the human heat perception.
Tefs - Effective sun temperature - the temperature that a person feels, adjusted for solar radiation. Depends on the amount of cloud cover and the height of the sun above the horizon. At night and in cloudy weather the correction is zero.
Weather comfort - a verbal characteristic that characterizes the favorability or unfavorability of forecast meteorological conditions for a seasonally dressed person. Both relative characteristics are used: warm, cool, cold, very cold, showing how much the expected Tef will be higher or lower than the norm, and absolute ones: the risk of sunstroke, the risk of overheating, hot, very hot, stuffy, very stuffy, comfort, the risk of colds, the risk of frostbite that occur when the Tef, Tefs, air temperature or a combination of certain criteria are reached.