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www.weatherandclimate.eu
The table shows the combined weather forecast 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
27.12
Sat
day
12 h
Partly cloudy +2 641 SW
4 m/s
0.0 -2 -2
27.12
Sat
even
18 h
Light snow -11 648 NW
6 m/s
0.2 -19 -19
28.12
Sun
night
00 h
Mostly cloudy -16 653 NW
5 m/s
0.0 -24 -24
28.12
Sun
morn
06 h
Light cloudy -16 656 W
3 m/s
0.0 -23 -23
28.12
Sun
day
12 h
Clear -15 657 SW
2 m/s
0.0 -20 -20
28.12
Sun
even
18 h
Clear -9 659 W
2 m/s
0.0 -13 -11
29.12
Mon
night
00 h
Clear -7 658 S
1 m/s
0.0 -8 -8
29.12
Mon
morn
06 h
Light cloudy -5 658 S
2 m/s
0.0 -8 -8
29.12
Mon
day
12 h
Clear -4 658 SW
2 m/s
0.0 -7 -7
29.12
Mon
even
18 h
Clear +2 660 SW
2 m/s
0.0 0 +2
30.12
Tue
night
00 h
Clear 0 658 SW
1 m/s
0.0 0 0
30.12
Tue
morn
06 h
Clear 0 657 SW
3 m/s
0.0 -2 -2
30.12
Tue
day
12 h
Light cloudy -0 657 SW
2 m/s
0.0 -2 -2
30.12
Tue
even
18 h
Light cloudy +4 659 SW
2 m/s
0.0 +3 +5
31.12
Wen
night
00 h
Light cloudy 0 655 S
2 m/s
0.0 -2 -2
31.12
Wen
morn
06 h
Clear +2 654 SW
3 m/s
0.0 0 0
31.12
Wen
day
12 h
Clear +1 651 SW
3 m/s
0.0 -1 -1
31.12
Wen
even
18 h
Clear +8 652 W
2 m/s
0.0 +7 +9
01.01
Thu
night
00 h
Clear +1 649 W
2 m/s
0.0 -1 -1
01.01
Thu
morn
06 h
Clear -1 648 SE
1 m/s
0.0 -1 -1
01.01
Thu
day
12 h
Clear -1 646 SE
1 m/s
0.0 -2 -2
01.01
Thu
even
18 h
Light cloudy +5 647 SE
1 m/s
0.0 +5 +7
02.01
Fri
night
00 h
Light cloudy +1 644 SE
2 m/s
0.0 0 0
02.01
Fri
morn
06 h
Partly cloudy +1 644 S
2 m/s
0.0 0 0
02.01
Fri
day
12 h
Light cloudy +2 643 S
3 m/s
0.0 0 0
02.01
Fri
even
18 h
Light cloudy +7 643 S
3 m/s
0.0 +5 +6
03.01
Sat
night
00 h
Mostly cloudy +5 641 S
2 m/s
0.0 +4 +4
03.01
Sat
morn
06 h
Light rain +4 638 S
2 m/s
0.2 +3 +3
Sat, 27.12
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
+2
-11
-16
-16
-15
-9
-7
-5
Atmospheric pressure
641
648
653
656
657
659
658
658
Wind
SW
4 m/s
NW
6 m/s
NW
5 m/s
W
3 m/s
SW
2 m/s
W
2 m/s
S
1 m/s
S
2 m/s
Precipitation, mm
0.0
0.2
0.0
0.0
0.0
0.0
0.0
0.0
Tef,°C
-2
-19
-24
-23
-20
-13
-8
-8
Tefs,°C
-2
-19
-24
-23
-20
-11
-8
-8
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
-4
+2
0
0
-0
+4
0
+2
Atmospheric pressure
658
660
658
657
657
659
655
654
Wind
SW
2 m/s
SW
2 m/s
SW
1 m/s
SW
3 m/s
SW
2 m/s
SW
2 m/s
S
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
-7
0
0
-2
-2
+3
-2
0
Tefs,°C
-7
+2
0
-2
-2
+5
-2
0
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
+1
+8
+1
-1
-1
+5
+1
+1
Atmospheric pressure
651
652
649
648
646
647
644
644
Wind
SW
3 m/s
W
2 m/s
W
2 m/s
SE
1 m/s
SE
1 m/s
SE
1 m/s
SE
2 m/s
S
2 m/s
Precipitation, mm
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
Tef,°C
-1
+7
-1
-1
-2
+5
0
0
Tefs,°C
-1
+9
-1
-1
-2
+7
0
0
Weather comfort
 
 
 
 
 
 
 
 
Fri
Fri
Sat
Sat
12 h
18 h
00 h
06 h
Air temperature,°С
+2
+7
+5
+4
Atmospheric pressure
643
643
641
638
Wind
S
3 m/s
S
3 m/s
S
2 m/s
S
2 m/s
Precipitation, mm
0.0
0.0
0.0
0.2
Tef,°C
0
+5
+4
+3
Tefs,°C
0
+6
+4
+3
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
 
 
 
 
 
 
 
 
  • Sat, 27.12
  • Mon, 29.12
  • Wen, 31.12
  • Fri, 02.01
  • , .
  • , .
  • , .
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.