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www.weatherandclimate.info
The table shows the combined weather forecast in Washington 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 Washington

Date Time Weather type Air temperature, °C Atmospheric pressure Wind Precipitation, mm Tef, °C Tefs, °C Weather comfort
17.01
Fri
morn
07 h
Light cloudy -3 765 W
2 m/s
0.0 -5 -5
17.01
Fri
morn
10 h
Clear +1 766 W
3 m/s
0.0 -2 +1
17.01
Fri
day
13 h
Clear +4 765 W
3 m/s
0.0 +2 +6
17.01
Fri
day
16 h
Clear +4 765 S
2 m/s
0.0 +3 +4
17.01
Fri
even
19 h
Clear +1 765 S
2 m/s
0.0 0 0
17.01
Fri
even
22 h
Light cloudy +1 765 S
3 m/s
0.0 -2 -2
18.01
Sat
night
01 h
Light cloudy 0 763 S
3 m/s
0.0 -3 -3
18.01
Sat
night
04 h
Light cloudy +1 763 S
4 m/s
0.0 -3 -3
18.01
Sat
morn
07 h
Cloudy +1 762 S
4 m/s
0.0 -3 -3
18.01
Sat
morn
10 h
Light rain +2 761 S
4 m/s
0.2 -1 -1
18.01
Sat
day
13 h
Partly cloudy +5 758 S
3 m/s
0.2 +3 +5
18.01
Sat
day
16 h
Partly cloudy +6 757 SW
3 m/s
0.0 +4 +4
18.01
Sat
even
19 h
Partly cloudy +4 757 SW
2 m/s
0.0 +3 +3
18.01
Sat
even
22 h
Partly cloudy +3 758 W
2 m/s
0.0 +2 +2
19.01
Sun
night
01 h
Partly cloudy +3 758 NW
3 m/s
0.0 +1 +1
19.01
Sun
night
04 h
Mostly cloudy +3 759 N
3 m/s
0.0 0 0
19.01
Sun
morn
07 h
Cloudy +2 760 N
4 m/s
0.1 -2 -2
19.01
Sun
morn
10 h
Snow -0 760 W
3 m/s
0.7 -3 -3
19.01
Sun
day
13 h
Snow -1 757 N
3 m/s
1.7 -4 -4
19.01
Sun
day
16 h
Snow -1 757 N
4 m/s
3.8 -5 -5
19.01
Sun
even
19 h
Snow -2 758 NW
4 m/s
2.6 -7 -7
19.01
Sun
even
22 h
Light cloudy -4 761 NW
5 m/s
0.1 -9 -9
20.01
Mon
night
01 h
Clear -7 770 NW
4 m/s
0.0 -12 -12
Fri, 17.01
Fri
Fri
Fri
Fri
Fri
Fri
Sat
Sat
07 h
10 h
13 h
16 h
19 h
22 h
01 h
04 h
Air temperature,°С
-3
+1
+4
+4
+1
+1
0
+1
Atmospheric pressure
765
766
765
765
765
765
763
763
Wind
W
2 m/s
W
3 m/s
W
3 m/s
S
2 m/s
S
2 m/s
S
3 m/s
S
3 m/s
S
4 m/s
Precipitation, mm
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
Tef,°C
-5
-2
+2
+3
0
-2
-3
-3
Tefs,°C
-5
+1
+6
+4
0
-2
-3
-3
Weather comfort
 
 
 
 
 
 
 
 
Sat
Sat
Sat
Sat
Sat
Sat
Sun
Sun
07 h
10 h
13 h
16 h
19 h
22 h
01 h
04 h
Air temperature,°С
+1
+2
+5
+6
+4
+3
+3
+3
Atmospheric pressure
762
761
758
757
757
758
758
759
Wind
S
4 m/s
S
4 m/s
S
3 m/s
SW
3 m/s
SW
2 m/s
W
2 m/s
NW
3 m/s
N
3 m/s
Precipitation, mm
0.0
0.2
0.2
0.0
0.0
0.0
0.0
0.0
Tef,°C
-3
-1
+3
+4
+3
+2
+1
0
Tefs,°C
-3
-1
+5
+4
+3
+2
+1
0
Weather comfort
 
 
 
 
 
 
 
 
Sun
Sun
Sun
Sun
Sun
Sun
Mon
07 h
10 h
13 h
16 h
19 h
22 h
01 h
Air temperature,°С
+2
-0
-1
-1
-2
-4
-7
Atmospheric pressure
760
760
757
757
758
761
770
Wind
N
4 m/s
W
3 m/s
N
3 m/s
N
4 m/s
NW
4 m/s
NW
5 m/s
NW
4 m/s
Precipitation, mm
0.1
0.7
1.7
3.8
2.6
0.1
0.0
Tef,°C
-2
-3
-4
-5
-7
-9
-12
Tefs,°C
-2
-3
-4
-5
-7
-9
-12
Weather comfort
 
 
 
 
 
 
 
 
  • Fri, 17.01
  • Sat, 18.01
  • Sun, 19.01
Location of a geographical point Washington (District of Columbia, USA): latitude 38.8483 longitude -77.0342 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.