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

Date Time Weather type Air temperature, °C Atmospheric pressure Wind Precipitation, mm Tef, °C Tefs, °C Weather comfort
11.08
Mon
day
15 h
Light cloudy +17 657 W
3 m/s
0.0 +17 +20
11.08
Mon
even
18 h
Clear +21 659 NW
4 m/s
0.0 +19 +27
11.08
Mon
even
21 h
Clear +23 660 NW
4 m/s
0.1 +19 +27
12.08
Tue
night
00 h
Clear +23 659 N
4 m/s
0.0 +19 +21
12.08
Tue
night
03 h
Light cloudy +19 658 N
2 m/s
0.0 +19 +19
12.08
Tue
morn
06 h
Partly cloudy +16 658 SE
2 m/s
0.0 +17 +17
12.08
Tue
morn
09 h
Light cloudy +15 657 SE
2 m/s
0.0 +15 +15
12.08
Tue
day
12 h
Light cloudy +13 655 SE
1 m/s
0.0 +13 +13
12.08
Tue
day
15 h
Clear +16 656 SE
2 m/s
0.0 +17 +21
12.08
Tue
even
18 h
Clear +24 657 E
1 m/s
0.0 +20 +35
12.08
Tue
even
21 h
Clear +28 656 SW
2 m/s
0.0 +23 +35
13.08
Wen
night
00 h
Clear +28 655 SW
2 m/s
0.1 +23 +26
13.08
Wen
night
03 h
Light cloudy +24 653 SE
2 m/s
0.1 +20 +20
13.08
Wen
morn
06 h
Clear +19 652 S
3 m/s
0.0 +19 +19
13.08
Wen
morn
09 h
Clear +20 652 S
3 m/s
0.0 +19 +19
13.08
Wen
day
12 h
Clear +18 650 S
3 m/s
0.0 +18 +18
13.08
Wen
day
15 h
Clear +20 652 S
2 m/s
0.0 +20 +25
13.08
Wen
even
18 h
Clear +28 654 W
4 m/s
0.0 +23 +31
13.08
Wen
even
21 h
Clear +31 653 W
4 m/s
0.0 +26 +34
14.08
Thu
night
00 h
Light cloudy +31 652 W
5 m/s
0.0 +26 +27
14.08
Thu
night
03 h
Clear +25 650 W
2 m/s
0.0 +21 +21
14.08
Thu
morn
06 h
Clear +21 651 SW
3 m/s
0.0 +19 +19
14.08
Thu
morn
09 h
Clear +18 651 SW
2 m/s
0.0 +18 +18
Mon, 11.08
Mon
Mon
Mon
Tue
Tue
Tue
Tue
Tue
15 h
18 h
21 h
00 h
03 h
06 h
09 h
12 h
Air temperature,°С
+17
+21
+23
+23
+19
+16
+15
+13
Atmospheric pressure
657
659
660
659
658
658
657
655
Wind
W
3 m/s
NW
4 m/s
NW
4 m/s
N
4 m/s
N
2 m/s
SE
2 m/s
SE
2 m/s
SE
1 m/s
Precipitation, mm
0.0
0.0
0.1
0.0
0.0
0.0
0.0
0.0
Tef,°C
+17
+19
+19
+19
+19
+17
+15
+13
Tefs,°C
+20
+27
+27
+21
+19
+17
+15
+13
Weather comfort
 
 
 
 
 
 
 
 
Tue
Tue
Tue
Wen
Wen
Wen
Wen
Wen
15 h
18 h
21 h
00 h
03 h
06 h
09 h
12 h
Air temperature,°С
+16
+24
+28
+28
+24
+19
+20
+18
Atmospheric pressure
656
657
656
655
653
652
652
650
Wind
SE
2 m/s
E
1 m/s
SW
2 m/s
SW
2 m/s
SE
2 m/s
S
3 m/s
S
3 m/s
S
3 m/s
Precipitation, mm
0.0
0.0
0.0
0.1
0.1
0.0
0.0
0.0
Tef,°C
+17
+20
+23
+23
+20
+19
+19
+18
Tefs,°C
+21
+35
+35
+26
+20
+19
+19
+18
Weather comfort
 
 
 
 
 
 
 
 
Wen
Wen
Wen
Thu
Thu
Thu
Thu
15 h
18 h
21 h
00 h
03 h
06 h
09 h
Air temperature,°С
+20
+28
+31
+31
+25
+21
+18
Atmospheric pressure
652
654
653
652
650
651
651
Wind
S
2 m/s
W
4 m/s
W
4 m/s
W
5 m/s
W
2 m/s
SW
3 m/s
SW
2 m/s
Precipitation, mm
0.0
0.0
0.0
0.0
0.0
0.0
0.0
Tef,°C
+20
+23
+26
+26
+21
+19
+18
Tefs,°C
+25
+31
+34
+27
+21
+19
+18
Weather comfort
 
 
 
 
 
 
 
 
  • Mon, 11.08
  • Tue, 12.08
  • Wen, 13.08
Location of a geographical point Lewistown (Montana, USA): latitude 47.0492 longitude -109.4578 height above sea level 1263 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.