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The table shows the combined weather forecast in Lewistown for a week 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
23.11
Sat
day
12 h
Cloudy -5 646 E
3 m/s
0.0 -9 -9
23.11
Sat
even
18 h
Mostly cloudy +2 642 E
1 m/s
0.0 +2 +3
24.11
Sun
night
00 h
Cloudy -4 643 NW
6 m/s
0.2 -10 -10
24.11
Sun
morn
06 h
Cloudy -8 647 NW
4 m/s
0.0 -13 -13
24.11
Sun
day
12 h
Cloudy -10 649 NW
2 m/s
0.0 -14 -14
24.11
Sun
even
18 h
Cloudy -9 653 NW
2 m/s
0.0 -13 -13
25.11
Mon
night
00 h
Cloudy -10 653 NW
2 m/s
0.0 -14 -14
25.11
Mon
morn
06 h
Partly cloudy -12 653 NE
1 m/s
0.0 -14 -14
25.11
Mon
day
12 h
Light cloudy -11 653 E
1 m/s
0.0 -13 -13
25.11
Mon
even
18 h
Mostly cloudy -3 654 E
1 m/s
0.0 -3 -2
26.11
Tue
night
00 h
Mostly cloudy -3 652 SE
1 m/s
0.0 -3 -3
26.11
Tue
morn
06 h
Light cloudy -2 651 SW
3 m/s
0.0 -5 -5
26.11
Tue
day
12 h
Light cloudy -2 649 S
2 m/s
0.0 -5 -5
26.11
Tue
even
18 h
Light cloudy +3 650 W
2 m/s
0.0 +1 +3
27.11
Wen
night
00 h
Light snow -2 649 W
2 m/s
0.0 -4 -4
27.11
Wen
morn
06 h
Light snow -3 650 SW
3 m/s
0.0 -6 -6
27.11
Wen
day
12 h
Light cloudy -4 651 W
2 m/s
0.0 -7 -7
27.11
Wen
even
18 h
Partly cloudy -2 653 W
1 m/s
0.0 -2 -1
28.11
Thu
night
00 h
Cloudy -4 652 NE
1 m/s
0.0 -4 -4
28.11
Thu
morn
06 h
Snow -6 651 W
3 m/s
0.7 -10 -10
28.11
Thu
day
12 h
Snow -7 651 W
1 m/s
0.6 -8 -8
28.11
Thu
even
18 h
Snow -11 655 NW
3 m/s
0.6 -16 -16
29.11
Fri
night
00 h
Partly cloudy -12 655 NE
1 m/s
0.0 -14 -14
29.11
Fri
morn
06 h
Light snow -10 655 E
2 m/s
0.2 -14 -14
29.11
Fri
day
12 h
Mostly cloudy -12 654 W
1 m/s
0.0 -14 -14
29.11
Fri
even
18 h
Cloudy -11 655 NE
2 m/s
0.0 -16 -16
30.11
Sat
night
00 h
Light snow -11 654 NE
3 m/s
0.2 -17 -17
30.11
Sat
morn
06 h
Snow -13 654 NE
1 m/s
0.4 -15 -15
Sat, 23.11
Sat
Sat
Sun
Sun
Sun
Sun
Mon
Mon
12 h
18 h
00 h
06 h
12 h
18 h
00 h
06 h
Air temperature,°С
-5
+2
-4
-8
-10
-9
-10
-12
Atmospheric pressure
646
642
643
647
649
653
653
653
Wind
E
3 m/s
E
1 m/s
NW
6 m/s
NW
4 m/s
NW
2 m/s
NW
2 m/s
NW
2 m/s
NE
1 m/s
Precipitation, mm
0.0
0.0
0.2
0.0
0.0
0.0
0.0
0.0
Tef,°C
-9
+2
-10
-13
-14
-13
-14
-14
Tefs,°C
-9
+3
-10
-13
-14
-13
-14
-14
Weather comfort
 
 
 
 
 
 
 
 
Mon
Mon
Tue
Tue
Tue
Tue
Wen
Wen
12 h
18 h
00 h
06 h
12 h
18 h
00 h
06 h
Air temperature,°С
-11
-3
-3
-2
-2
+3
-2
-3
Atmospheric pressure
653
654
652
651
649
650
649
650
Wind
E
1 m/s
E
1 m/s
SE
1 m/s
SW
3 m/s
S
2 m/s
W
2 m/s
W
2 m/s
SW
3 m/s
Precipitation, mm
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
Tef,°C
-13
-3
-3
-5
-5
+1
-4
-6
Tefs,°C
-13
-2
-3
-5
-5
+3
-4
-6
Weather comfort
 
 
 
 
 
 
 
 
Wen
Wen
Thu
Thu
Thu
Thu
Fri
Fri
12 h
18 h
00 h
06 h
12 h
18 h
00 h
06 h
Air temperature,°С
-4
-2
-4
-6
-7
-11
-12
-10
Atmospheric pressure
651
653
652
651
651
655
655
655
Wind
W
2 m/s
W
1 m/s
NE
1 m/s
W
3 m/s
W
1 m/s
NW
3 m/s
NE
1 m/s
E
2 m/s
Precipitation, mm
0.0
0.0
0.0
0.7
0.6
0.6
0.0
0.2
Tef,°C
-7
-2
-4
-10
-8
-16
-14
-14
Tefs,°C
-7
-1
-4
-10
-8
-16
-14
-14
Weather comfort
 
 
 
 
 
 
 
 
Fri
Fri
Sat
Sat
12 h
18 h
00 h
06 h
Air temperature,°С
-12
-11
-11
-13
Atmospheric pressure
654
655
654
654
Wind
W
1 m/s
NE
2 m/s
NE
3 m/s
NE
1 m/s
Precipitation, mm
0.0
0.0
0.2
0.4
Tef,°C
-14
-16
-17
-15
Tefs,°C
-14
-16
-17
-15
Weather comfort
 
 
 
 
 
 
 
 
  • Sat, 23.11
  • Mon, 25.11
  • Wen, 27.11
  • Fri, 29.11
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.