Lewistown weather live forecast

Today's maximum temperature in Lewistown is expected to be 39°F. Select a day from the live weather forecast for Lewistown, Montana, USA for more weather parameters.

Saturday
25th Apr
39

23

1

3
Sunday
26th Apr
37

23

2

3
Monday
27th Apr
45

23

2

3
Tuesday
28th Apr
54

25

5

3
Wednesday
29th Apr
54

28

2

5

5-day weather forecast updated at 04:02 on Saturday 25th April 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 Saturday 25th April 2026

Expect mostly cloudy with light snow in Lewistown, Montana with a maximum temperature of 39°F, maximum UV of 3 (Moderate) and 1 hour of bright sunshine. There are 0-2 cm of snow expected with 6% chance of some snow and a moderate breeze of 13 mph from the west.

39
°F maximum temperature
23
°F minimum temperature
mostly cloudy with light snow
1
hour of sunshine
3
UV index (Moderate)
6
% chance of some snow
<2
cm of snow expected
30
°F wind chill
13
mph wind from W

Lewistown weather for Sunday 26th April 2026

Expect mostly cloudy with light rain in Lewistown, Montana with a maximum temperature of 37°F, maximum UV of 3 (Moderate) and 2 hours of bright sunshine. There are 0-2 mm of rainfall expected with 49% chance of some rain and a gentle breeze of 9 mph from the east.

37
°F maximum temperature
23
°F minimum temperature
mostly cloudy with light rain
2
hours of sunshine
3
UV index (Moderate)
49
% chance of some rain
<2
mm of rainfall expected
30
°F wind chill
9
mph wind from E

Lewistown weather for Monday 27th April 2026

Expect broken clouds in Lewistown, Montana with a maximum temperature of 45°F, maximum UV of 3 (Moderate) and 2 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 5 mph from the south-east.

45
°F maximum temperature
23
°F minimum temperature
broken clouds
2
hours of sunshine
3
UV index (Moderate)
0
mm of rainfall expected
41
°F wind chill
5
mph wind from SE

Lewistown weather for Tuesday 28th April 2026

Expect mostly cloudy with light rain in Lewistown, Montana with a maximum temperature of 54°F, maximum UV of 3 (Moderate) and 5 hours of bright sunshine. There are 0-2 mm of rainfall expected with 38% chance of some rain and a gentle breeze of 11 mph from the north-west.

54
°F maximum temperature
25
°F minimum temperature
mostly cloudy with light rain
5
hours of sunshine
3
UV index (Moderate)
38
% chance of some rain
<2
mm of rainfall expected
54
°F wind chill
11
mph wind from NW

Lewistown weather for Wednesday 29th April 2026

Expect broken clouds in Lewistown, Montana with a maximum temperature of 54°F, maximum UV of 5 (Moderate) and 2 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 10 mph from the north.