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The table shows the combined weather forecast in Portland for 14 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
24.07
Fri
even
18 h
Clear +23 766 S
4 m/s
0.0 +19 +29
25.07
Sat
night
00 h
Clear +20 765 S
3 m/s
0.0 +19 +19
25.07
Sat
morn
06 h
Clear +16 766 SW
2 m/s
0.0 +16 +16
25.07
Sat
day
12 h
Clear +17 765 S
1 m/s
0.0 +18 +23
25.07
Sat
even
18 h
Clear +21 764 SE
3 m/s
0.0 +19 +33
26.07
Sun
night
00 h
Clear +19 762 SE
2 m/s
0.0 +19 +19
26.07
Sun
morn
06 h
Clear +15 761 NW
1 m/s
0.0 +16 +16
26.07
Sun
day
12 h
Clear +15 760 NE
1 m/s
0.0 +16 +21
26.07
Sun
even
18 h
Light cloudy +22 759 SE
3 m/s
0.0 +19 +30
27.07
Mon
night
00 h
Clear +19 757 SE
2 m/s
0.0 +19 +19
27.07
Mon
morn
06 h
Clear +15 757 W
1 m/s
0.0 +16 +16
27.07
Mon
day
12 h
Clear +17 757 W
1 m/s
0.0 +18 +23
27.07
Mon
even
18 h
Light cloudy +24 756 SE
4 m/s
0.0 +20 +28
28.07
Tue
night
00 h
Clear +15 567 S
2 m/s
0.0 +15 +15
28.07
Tue
morn
06 h
Light cloudy +11 520 SW
1 m/s
0.0 +12 +12
28.07
Tue
day
12 h
Mostly cloudy +12 508 SE
1 m/s
0.0 +13 +15
28.07
Tue
even
18 h
Mostly cloudy +15 504 S
3 m/s
0.0 +15 +20
29.07
Wen
night
00 h
Light rain +13 503 S
2 m/s
0.0 +13 +13
Fri, 24.07
Fri
Sat
Sat
Sat
Sat
Sun
Sun
Sun
18 h
00 h
06 h
12 h
18 h
00 h
06 h
12 h
Air temperature,°С
+23
+20
+16
+17
+21
+19
+15
+15
Atmospheric pressure
766
765
766
765
764
762
761
760
Wind
S
4 m/s
S
3 m/s
SW
2 m/s
S
1 m/s
SE
3 m/s
SE
2 m/s
NW
1 m/s
NE
1 m/s
Precipitation, mm
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
Tef,°C
+19
+19
+16
+18
+19
+19
+16
+16
Tefs,°C
+29
+19
+16
+23
+33
+19
+16
+21
Weather comfort
 
 
 
 
 
 
 
 
Sun
Mon
Mon
Mon
Mon
Tue
Tue
Tue
18 h
00 h
06 h
12 h
18 h
00 h
06 h
12 h
Air temperature,°С
+22
+19
+15
+17
+24
+15
+11
+12
Atmospheric pressure
759
757
757
757
756
567
520
508
Wind
SE
3 m/s
SE
2 m/s
W
1 m/s
W
1 m/s
SE
4 m/s
S
2 m/s
SW
1 m/s
SE
1 m/s
Precipitation, mm
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
Tef,°C
+19
+19
+16
+18
+20
+15
+12
+13
Tefs,°C
+30
+19
+16
+23
+28
+15
+12
+15
Weather comfort
 
 
 
 
 
 
 
 
Tue
Wen
18 h
00 h
Air temperature,°С
+15
+13
Atmospheric pressure
504
503
Wind
S
3 m/s
S
2 m/s
Precipitation, mm
0.0
0.0
Tef,°C
+15
+13
Tefs,°C
+20
+13
Weather comfort
 
 
 
 
 
 
 
 
Air temperature,°С
Atmospheric pressure
Wind
Precipitation, mm
Tef,°C
Tefs,°C
Weather comfort
 
 
 
 
 
 
 
 
Air temperature,°С
Atmospheric pressure
Wind
Precipitation, mm
Tef,°C
Tefs,°C
Weather comfort
 
 
 
 
 
 
 
 
Air temperature,°С
Atmospheric pressure
Wind
Precipitation, mm
Tef,°C
Tefs,°C
Weather comfort
 
 
 
 
 
 
 
 
Air temperature,°С
Atmospheric pressure
Wind
Precipitation, mm
Tef,°C
Tefs,°C
Weather comfort
 
 
 
 
 
 
 
 
  • Fri, 24.07
  • Sun, 26.07
  • Tue, 28.07
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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.