Lewistown weather live forecast

Today's maximum temperature in Lewistown is expected to be 37°F. Select a day from the live weather forecast for Lewistown, Montana, USA for more weather parameters.

Thursday
5th Mar
37

28

0

1
Friday
6th Mar
41

25

6

3
Saturday
7th Mar
54

27

9

3
Sunday
8th Mar
57

36

5

3
Monday
9th Mar
45

27

1

3

5-day weather forecast updated at 04:03 on Thursday 5th March 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 Thursday 5th March 2026

Expect mostly cloudy with snow in Lewistown, Montana with a maximum temperature of 37°F, maximum UV of 1 (Low) and no hours of bright sunshine. There are 5-10 cm of snow expected with 98% chance of some snow and a gentle breeze of 11 mph from the north-west.

37
°F maximum temperature
28
°F minimum temperature
mostly cloudy with snow
0
hours of sunshine
1
UV index (Low)
98
% chance of some snow
<10
cm of snow expected
30
°F wind chill
11
mph wind from NW

Lewistown weather for Friday 6th March 2026

Expect clear skies with flurries of snow in Lewistown, Montana with a maximum temperature of 41°F, maximum UV of 3 (Moderate) and 6 hours of bright sunshine. There are 0-2 cm of snow expected with 12% chance of some snow and a moderate breeze of 13 mph from the west.

41
°F maximum temperature
25
°F minimum temperature
clear skies with flurries of snow
6
hours of sunshine
3
UV index (Moderate)
12
% chance of some snow
<2
cm of snow expected
34
°F wind chill
13
mph wind from W

Lewistown weather for Saturday 7th March 2026

Expect scattered clouds in Lewistown, Montana with a maximum temperature of 54°F, maximum UV of 3 (Moderate) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 20 mph from the west.

54
°F maximum temperature
27
°F minimum temperature
scattered clouds
9
hours of sunshine
3
UV index (Moderate)
0
mm of rainfall expected
54
°F wind chill
20
mph wind from W

Lewistown weather for Sunday 8th March 2026

Expect broken clouds in Lewistown, Montana with a maximum temperature of 57°F, maximum UV of 3 (Moderate) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 22 mph from the west.

57
°F maximum temperature
36
°F minimum temperature
broken clouds
5
hours of sunshine
3
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
22
mph wind from W

Lewistown weather for Monday 9th March 2026

Expect cloudy with sleet or snow in Lewistown, Montana with a maximum temperature of 45°F, maximum UV of 3 (Moderate) and 1 hour of bright sunshine. There are 2-5 mm of sleet/snow expected with 62% chance of some sleet or snow and a fresh breeze of 20 mph from the west.