Lewistown weather live forecast

Today's maximum temperature in Lewistown is expected to be 59°F. Select a day from the live weather forecast for Lewistown, Montana, USA for more weather parameters.

Saturday
28th Mar
59

37

1

4
Sunday
29th Mar
57

39

2

4
Monday
30th Mar
39

21

0

4
Tuesday
31st Mar
39

18

4

4
Wednesday
1st Apr
57

25

11

4

5-day weather forecast updated at 04:03 on Saturday 28th 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 Saturday 28th March 2026

Expect broken clouds in Lewistown, Montana with a maximum temperature of 59°F, maximum UV of 4 (Moderate) and 1 hour of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 10 mph from the south-west.

59
°F maximum temperature
37
°F minimum temperature
broken clouds
1
hour of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
10
mph wind from SW

Lewistown weather for Sunday 29th March 2026

Expect mostly cloudy with light rain in Lewistown, Montana with a maximum temperature of 57°F, maximum UV of 4 (Moderate) and 2 hours of bright sunshine. There are 0-2 mm of rainfall expected with 40% chance of some rain and a gentle breeze of 10 mph from the west.

57
°F maximum temperature
39
°F minimum temperature
mostly cloudy with light rain
2
hours of sunshine
4
UV index (Moderate)
40
% chance of some rain
<2
mm of rainfall expected
0
no heat & humidity
10
mph wind from W

Lewistown weather for Monday 30th March 2026

Expect mostly cloudy with light rain in Lewistown, Montana with a maximum temperature of 39°F, maximum UV of 4 (Moderate) and no hours of bright sunshine. There are 2-5 mm of rainfall expected with 64% chance of some rain and a fresh breeze of 21 mph from the north-west.

39
°F maximum temperature
21
°F minimum temperature
mostly cloudy with light rain
0
hours of sunshine
4
UV index (Moderate)
64
% chance of some rain
<5
mm of rainfall expected
30
°F wind chill
21
mph wind from NW

Lewistown weather for Tuesday 31st March 2026

Expect broken clouds in Lewistown, Montana with a maximum temperature of 39°F, maximum UV of 4 (Moderate) and 4 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 10 mph from the south-east.

39
°F maximum temperature
18
°F minimum temperature
broken clouds
4
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
34
°F wind chill
10
mph wind from SE

Lewistown weather for Wednesday 1st April 2026

Expect sunshine and showers in Lewistown, Montana with a maximum temperature of 57°F, maximum UV of 4 (Moderate) and 11 hours of bright sunshine. There are 0-2 mm of rainfall expected with 31% chance of some rain and a gentle breeze of 12 mph from the south-east.