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www.weatherandclimate.eu
The table shows the combined weather forecast Portland 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 Portland

Date Time Weather type Air temperature, °C Atmospheric pressure Wind Precipitation, mm Tef, °C Tefs, °C Weather comfort
04.04
Fri
day
15 h
Light cloudy +8 763 NW
4 m/s
0.0 +6 +12
04.04
Fri
even
18 h
Clear +11 763 NW
5 m/s
0.0 +9 +15
04.04
Fri
even
21 h
Clear +11 764 NW
5 m/s
0.0 +9 +11
05.04
Sat
night
00 h
Clear +9 766 N
5 m/s
0.0 +6 +6
05.04
Sat
night
03 h
Clear +6 769 N
3 m/s
0.0 +4 +4
05.04
Sat
morn
06 h
Light cloudy +5 770 N
2 m/s
0.0 +4 +4
05.04
Sat
morn
09 h
Partly cloudy +4 771 NE
2 m/s
0.0 +3 +3
05.04
Sat
day
12 h
Mostly cloudy +4 772 NE
3 m/s
0.0 +2 +3
05.04
Sat
day
15 h
Cloudy +4 771 E
4 m/s
0.0 +1 +3
05.04
Sat
even
18 h
Cloudy +3 770 SE
4 m/s
0.1 0 +1
05.04
Sat
even
21 h
Snow with rain +3 768 SE
4 m/s
1.5 0 0
06.04
Sun
night
00 h
Snow with rain +3 766 SE
4 m/s
1.6 0 0
06.04
Sun
night
03 h
Rain +4 764 S
5 m/s
1.0 0 0
06.04
Sun
morn
06 h
Light rain +4 760 S
4 m/s
0.7 +1 +1
06.04
Sun
morn
09 h
Snow with rain +4 757 SE
3 m/s
1.3 +2 +2
06.04
Sun
day
12 h
Rain +4 754 NW
1 m/s
1.0 +4 +4
06.04
Sun
day
15 h
Rain +5 754 NW
2 m/s
2.3 +4 +6
06.04
Sun
even
18 h
Mostly cloudy +6 753 W
2 m/s
0.2 +5 +8
06.04
Sun
even
21 h
Partly cloudy +8 753 SW
1 m/s
0.0 +8 +10
07.04
Mon
night
00 h
Mostly cloudy +7 755 NW
2 m/s
0.0 +6 +6
07.04
Mon
night
03 h
Mostly cloudy +6 756 NW
3 m/s
0.1 +4 +4
07.04
Mon
morn
06 h
Mostly cloudy +5 756 N
3 m/s
0.0 +4 +4
07.04
Mon
morn
09 h
Cloudy +5 756 W
4 m/s
0.2 +2 +2
Fri, 04.04
Fri
Fri
Fri
Sat
Sat
Sat
Sat
Sat
15 h
18 h
21 h
00 h
03 h
06 h
09 h
12 h
Air temperature,°С
+8
+11
+11
+9
+6
+5
+4
+4
Atmospheric pressure
763
763
764
766
769
770
771
772
Wind
NW
4 m/s
NW
5 m/s
NW
5 m/s
N
5 m/s
N
3 m/s
N
2 m/s
NE
2 m/s
NE
3 m/s
Precipitation, mm
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
Tef,°C
+6
+9
+9
+6
+4
+4
+3
+2
Tefs,°C
+12
+15
+11
+6
+4
+4
+3
+3
Weather comfort
 
 
 
 
 
 
 
 
Sat
Sat
Sat
Sun
Sun
Sun
Sun
Sun
15 h
18 h
21 h
00 h
03 h
06 h
09 h
12 h
Air temperature,°С
+4
+3
+3
+3
+4
+4
+4
+4
Atmospheric pressure
771
770
768
766
764
760
757
754
Wind
E
4 m/s
SE
4 m/s
SE
4 m/s
SE
4 m/s
S
5 m/s
S
4 m/s
SE
3 m/s
NW
1 m/s
Precipitation, mm
0.0
0.1
1.5
1.6
1.0
0.7
1.3
1.0
Tef,°C
+1
0
0
0
0
+1
+2
+4
Tefs,°C
+3
+1
0
0
0
+1
+2
+4
Weather comfort
 
 
 
 
 
 
 
 
Sun
Sun
Sun
Mon
Mon
Mon
Mon
15 h
18 h
21 h
00 h
03 h
06 h
09 h
Air temperature,°С
+5
+6
+8
+7
+6
+5
+5
Atmospheric pressure
754
753
753
755
756
756
756
Wind
NW
2 m/s
W
2 m/s
SW
1 m/s
NW
2 m/s
NW
3 m/s
N
3 m/s
W
4 m/s
Precipitation, mm
2.3
0.2
0.0
0.0
0.1
0.0
0.2
Tef,°C
+4
+5
+8
+6
+4
+4
+2
Tefs,°C
+6
+8
+10
+6
+4
+4
+2
Weather comfort
 
 
 
 
 
 
 
 
  • Fri, 04.04
  • Sat, 05.04
  • Sun, 06.04
Location of a geographical point Portland (Maine, USA): latitude 43.6497 longitude -70.3003 height above sea level 14 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.