Lewistown weather live forecast

Today's maximum temperature in Lewistown is expected to be 57°F. Select a day from the live weather forecast for Lewistown, Montana, USA for more weather parameters.

Sunday
8th Feb
57

34

3

2
Monday
9th Feb
39

27

0

2
Tuesday
10th Feb
41

21

8

2
Wednesday
11th Feb
41

21

2

2
Thursday
12th Feb
45

23

10

2

5-day weather forecast updated at 04:06 on Sunday 8th February 2026 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 Sunday 8th February 2026

Expect cloudy with sleet or snow in Lewistown, Montana with a maximum temperature of 57°F, maximum UV of 2 (Low) and 3 hours of bright sunshine. There are 5-10 mm of sleet/snow expected with 91% chance of some sleet or snow and a moderate breeze of 14 mph from the south-west.

57
°F maximum temperature
34
°F minimum temperature
cloudy with sleet or snow
3
hours of sunshine
2
UV index (Low)
91
% chance of some sleet or snow
<10
mm of sleet/snow expected
57
°F wind chill
14
mph wind from SW

Lewistown weather for Monday 9th February 2026

Expect cloudy with sleet or snow in Lewistown, Montana with a maximum temperature of 39°F, maximum UV of 2 (Low) and no hours of bright sunshine. There are 5-10 mm of sleet/snow expected with 59% chance of some sleet or snow and a gentle breeze of 11 mph from the west.

39
°F maximum temperature
27
°F minimum temperature
cloudy with sleet or snow
0
hours of sunshine
2
UV index (Low)
59
% chance of some sleet or snow
<10
mm of sleet/snow expected
32
°F wind chill
11
mph wind from W

Lewistown weather for Tuesday 10th February 2026

Expect scattered clouds in Lewistown, Montana with a maximum temperature of 41°F, maximum UV of 2 (Low) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 8 mph from the south-west.

41
°F maximum temperature
21
°F minimum temperature
scattered clouds
8
hours of sunshine
2
UV index (Low)
0
mm of rainfall expected
37
°F wind chill
8
mph wind from SW

Lewistown weather for Wednesday 11th February 2026

Expect broken clouds in Lewistown, Montana with a maximum temperature of 41°F, maximum UV of 2 (Low) and 2 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 7 mph from the south.

41
°F maximum temperature
21
°F minimum temperature
broken clouds
2
hours of sunshine
2
UV index (Low)
0
mm of rainfall expected
37
°F wind chill
7
mph wind from S

Lewistown weather for Thursday 12th February 2026

Expect scattered clouds in Lewistown, Montana with a maximum temperature of 45°F, maximum UV of 2 (Low) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 9 mph from the south-west.