Lewistown weather live forecast

Today's maximum temperature in Lewistown is expected to be 50°F. Select a day from the live weather forecast for Lewistown, Montana, USA for more weather parameters.

Tuesday
23rd Dec
50

30

2

1
Wednesday
24th Dec
52

36

3

1
Thursday
25th Dec
48

32

1

1
Friday
26th Dec
46

34

1

1
Saturday
27th Dec
32

10

1

1

5-day weather forecast updated at 04:03 on Tuesday 23rd December 2025 GMT

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The 5-day weather forecast for Montana (Lewistown) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Lewistown weather forecast by day

Below are the detailed weather forecasts for Lewistown for the next 5 days.

Lewistown weather for Tuesday 23rd December 2025

Expect broken clouds in Lewistown, Montana with a maximum temperature of 50°F, maximum UV of 1 (Low) and 2 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 8 mph from the south.

50
°F maximum temperature
30
°F minimum temperature
broken clouds
2
hours of sunshine
1
UV index (Low)
0
mm of rainfall expected
46
°F wind chill
8
mph wind from S

Lewistown weather for Wednesday 24th December 2025

Expect broken clouds in Lewistown, Montana with a maximum temperature of 52°F, maximum UV of 1 (Low) and 3 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 10 mph from the south-east.

52
°F maximum temperature
36
°F minimum temperature
broken clouds
3
hours of sunshine
1
UV index (Low)
0
mm of rainfall expected
0
no heat & humidity
10
mph wind from SE

Lewistown weather for Thursday 25th December 2025

Expect mostly cloudy with light rain in Lewistown, Montana with a maximum temperature of 48°F, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 0-2 mm of rainfall expected with 27% chance of some rain and a gentle breeze of 9 mph from the south-west.

48
°F maximum temperature
32
°F minimum temperature
mostly cloudy with light rain
1
hour of sunshine
1
UV index (Low)
27
% chance of some rain
<2
mm of rainfall expected
45
°F wind chill
9
mph wind from SW

Lewistown weather for Friday 26th December 2025

Expect mostly cloudy with light rain in Lewistown, Montana with a maximum temperature of 46°F, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 2-5 mm of rainfall expected with 26% chance of some rain and a moderate breeze of 14 mph from the west.

46
°F maximum temperature
34
°F minimum temperature
mostly cloudy with light rain
1
hour of sunshine
1
UV index (Low)
26
% chance of some rain
<5
mm of rainfall expected
41
°F wind chill
14
mph wind from W

Lewistown weather for Saturday 27th December 2025

Expect mostly cloudy with light snow in Lewistown, Montana with a maximum temperature of 32°F, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 0-2 cm of snow expected with 21% chance of some snow and a moderate breeze of 16 mph from the north-west.