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The table shows the combined weather forecast in Lewistown 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 Lewistown

Date Time Weather type Air temperature, °C Atmospheric pressure Wind Precipitation, mm Tef, °C Tefs, °C Weather comfort
23.01
Fri
day
12 h
Cloudy -19 658 E
2 m/s
0.0 -25 -25
23.01
Fri
even
18 h
Cloudy -18 659 NW
2 m/s
0.0 -23 -23
24.01
Sat
night
00 h
Light cloudy -18 657 W
1 m/s
0.0 -21 -21
24.01
Sat
morn
06 h
Light cloudy -19 653 S
2 m/s
0.0 -24 -24
24.01
Sat
day
12 h
Cloudy -13 653 SW
3 m/s
0.0 -19 -19
24.01
Sat
even
18 h
Snow -10 654 NW
4 m/s
0.8 -16 -16
25.01
Sun
night
00 h
Snow -10 653 NW
5 m/s
0.7 -17 -17
25.01
Sun
morn
06 h
Snow -15 655 NW
2 m/s
1.1 -19 -19
25.01
Sun
day
12 h
Light snow -18 656 W
2 m/s
0.5 -24 -24
25.01
Sun
even
18 h
Clear -15 657 SW
2 m/s
0.0 -19 -16
26.01
Mon
night
00 h
Clear -13 651 S
3 m/s
0.0 -19 -19
26.01
Mon
morn
06 h
Clear -6 650 SW
4 m/s
0.0 -12 -12
26.01
Mon
day
12 h
Clear -6 650 SW
4 m/s
0.0 -11 -11
26.01
Mon
even
18 h
Clear -2 652 SW
3 m/s
0.0 -5 -2
27.01
Tue
night
00 h
Light cloudy -4 652 SW
3 m/s
0.0 -7 -7
27.01
Tue
morn
06 h
Partly cloudy -3 654 SW
3 m/s
0.0 -6 -6
27.01
Tue
day
12 h
Light cloudy -4 654 SW
3 m/s
0.0 -8 -8
27.01
Tue
even
18 h
Light cloudy 0 658 SW
3 m/s
0.0 -3 -1
28.01
Wen
night
00 h
Clear -1 657 SW
3 m/s
0.0 -4 -4
28.01
Wen
morn
06 h
Clear -4 656 S
2 m/s
0.0 -7 -7
28.01
Wen
day
12 h
Light cloudy -3 656 S
2 m/s
0.0 -5 -5
28.01
Wen
even
18 h
Light cloudy +2 657 SW
1 m/s
0.0 +2 +5
29.01
Thu
night
00 h
Clear 0 654 S
2 m/s
0.0 -2 -2
29.01
Thu
morn
06 h
Light cloudy -2 653 S
1 m/s
0.0 -2 -2
29.01
Thu
day
12 h
Clear -2 653 S
1 m/s
0.0 -2 -2
29.01
Thu
even
18 h
Light cloudy +3 655 E
1 m/s
0.0 +3 +6
30.01
Fri
night
00 h
Light cloudy -0 654 SE
2 m/s
0.1 -2 -2
30.01
Fri
morn
06 h
Snow -5 652 SE
2 m/s
0.6 -7 -7
Fri, 23.01
Fri
Fri
Sat
Sat
Sat
Sat
Sun
Sun
12 h
18 h
00 h
06 h
12 h
18 h
00 h
06 h
Air temperature,°С
-19
-18
-18
-19
-13
-10
-10
-15
Atmospheric pressure
658
659
657
653
653
654
653
655
Wind
E
2 m/s
NW
2 m/s
W
1 m/s
S
2 m/s
SW
3 m/s
NW
4 m/s
NW
5 m/s
NW
2 m/s
Precipitation, mm
0.0
0.0
0.0
0.0
0.0
0.8
0.7
1.1
Tef,°C
-25
-23
-21
-24
-19
-16
-17
-19
Tefs,°C
-25
-23
-21
-24
-19
-16
-17
-19
Weather comfort
 
 
 
 
 
 
 
 
Sun
Sun
Mon
Mon
Mon
Mon
Tue
Tue
12 h
18 h
00 h
06 h
12 h
18 h
00 h
06 h
Air temperature,°С
-18
-15
-13
-6
-6
-2
-4
-3
Atmospheric pressure
656
657
651
650
650
652
652
654
Wind
W
2 m/s
SW
2 m/s
S
3 m/s
SW
4 m/s
SW
4 m/s
SW
3 m/s
SW
3 m/s
SW
3 m/s
Precipitation, mm
0.5
0.0
0.0
0.0
0.0
0.0
0.0
0.0
Tef,°C
-24
-19
-19
-12
-11
-5
-7
-6
Tefs,°C
-24
-16
-19
-12
-11
-2
-7
-6
Weather comfort
 
 
 
 
 
 
 
 
Tue
Tue
Wen
Wen
Wen
Wen
Thu
Thu
12 h
18 h
00 h
06 h
12 h
18 h
00 h
06 h
Air temperature,°С
-4
0
-1
-4
-3
+2
0
-2
Atmospheric pressure
654
658
657
656
656
657
654
653
Wind
SW
3 m/s
SW
3 m/s
SW
3 m/s
S
2 m/s
S
2 m/s
SW
1 m/s
S
2 m/s
S
1 m/s
Precipitation, mm
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
Tef,°C
-8
-3
-4
-7
-5
+2
-2
-2
Tefs,°C
-8
-1
-4
-7
-5
+5
-2
-2
Weather comfort
 
 
 
 
 
 
 
 
Thu
Thu
Fri
Fri
12 h
18 h
00 h
06 h
Air temperature,°С
-2
+3
-0
-5
Atmospheric pressure
653
655
654
652
Wind
S
1 m/s
E
1 m/s
SE
2 m/s
SE
2 m/s
Precipitation, mm
0.0
0.0
0.1
0.6
Tef,°C
-2
+3
-2
-7
Tefs,°C
-2
+6
-2
-7
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, 23.01
  • Sun, 25.01
  • Tue, 27.01
  • Thu, 29.01
  • , .
  • , .
  • , .
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.