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.

Thursday
25th Dec
50

27

7

1
Friday
26th Dec
48

36

1

1
Saturday
27th Dec
36

3

2

1
Sunday
28th Dec
28

7

9

1
Monday
29th Dec
45

27

8

1

5-day weather forecast updated at 04:04 on Thursday 25th 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 Thursday 25th December 2025

Expect broken clouds in Lewistown, Montana with a maximum temperature of 50°F, maximum UV of 1 (Low) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 11 mph from the south-west.

50
°F maximum temperature
27
°F minimum temperature
broken clouds
7
hours of sunshine
1
UV index (Low)
0
mm of rainfall expected
0
no heat & humidity
11
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 48°F, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 0-2 mm of rainfall expected with 16% chance of some rain and a moderate breeze of 15 mph from the south-west.

48
°F maximum temperature
36
°F minimum temperature
mostly cloudy with light rain
1
hour of sunshine
1
UV index (Low)
16
% chance of some rain
<2
mm of rainfall expected
43
°F wind chill
15
mph wind from SW

Lewistown weather for Saturday 27th December 2025

Expect mostly cloudy with light snow in Lewistown, Montana with a maximum temperature of 36°F, maximum UV of 1 (Low) and 2 hours of bright sunshine. There are 0-2 cm of snow expected with 23% chance of some snow and a moderate breeze of 17 mph from the north-west.

36
°F maximum temperature
3
°F minimum temperature
mostly cloudy with light snow
2
hours of sunshine
1
UV index (Low)
23
% chance of some snow
<2
cm of snow expected
25
°F wind chill
17
mph wind from NW

Lewistown weather for Sunday 28th December 2025

Expect scattered clouds in Lewistown, Montana with a maximum temperature of 28°F, maximum UV of 1 (Low) and 9 hours of bright sunshine. There are 0 cm of snow expected and a gentle breeze of 11 mph from the south-west.

28
°F maximum temperature
7
°F minimum temperature
scattered clouds
9
hours of sunshine
1
UV index (Low)
0
cm of snow expected
18
°F wind chill
11
mph wind from SW

Lewistown weather for Monday 29th December 2025

Expect clear skies in Lewistown, Montana with a maximum temperature of 45°F, maximum UV of 1 (Low) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 11 mph from the south-west.