Lewistown weather live forecast

Today's maximum temperature in Lewistown is expected to be 63°F. Select a day from the live weather forecast for Lewistown, Montana, USA for more weather parameters.

Tuesday
24th Mar
63

39

3

5
Wednesday
25th Mar
63

37

1

4
Thursday
26th Mar
37

23

8

5
Friday
27th Mar
50

21

12

5
Saturday
28th Mar
64

30

2

5

5-day weather forecast updated at 04:03 on Wednesday 25th 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 Tuesday 24th March 2026

Expect broken clouds in Lewistown, Montana with a maximum temperature of 63°F, maximum UV of 5 (Moderate) and 3 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 9 mph from the west.

63
°F maximum temperature
39
°F minimum temperature
broken clouds
3
hours of sunshine
5
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
9
mph wind from W

Lewistown weather for Wednesday 25th March 2026

Expect cloudy with sleet or snow in Lewistown, Montana with a maximum temperature of 63°F, maximum UV of 4 (Moderate) and 1 hour of bright sunshine. There are 2-5 mm of sleet/snow expected with 64% chance of some sleet or snow and a moderate breeze of 14 mph from the north-west.

63
°F maximum temperature
37
°F minimum temperature
cloudy with sleet or snow
1
hour of sunshine
4
UV index (Moderate)
64
% chance of some sleet or snow
<5
mm of sleet/snow expected
0
no heat & humidity
14
mph wind from NW

Lewistown weather for Thursday 26th March 2026

Expect clear skies with flurries of snow in Lewistown, Montana with a maximum temperature of 37°F, maximum UV of 5 (Moderate) and 8 hours of bright sunshine. There are 0-2 cm of snow expected with 24% chance of some snow and a moderate breeze of 17 mph from the north-west.

37
°F maximum temperature
23
°F minimum temperature
clear skies with flurries of snow
8
hours of sunshine
5
UV index (Moderate)
24
% chance of some snow
<2
cm of snow expected
28
°F wind chill
17
mph wind from NW

Lewistown weather for Friday 27th March 2026

Expect clear skies in Lewistown, Montana with a maximum temperature of 50°F, maximum UV of 5 (Moderate) and 12 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 10 mph from the south-west.

50
°F maximum temperature
21
°F minimum temperature
clear skies
12
hours of sunshine
5
UV index (Moderate)
0
mm of rainfall expected
46
°F wind chill
10
mph wind from SW

Lewistown weather for Saturday 28th March 2026

Expect broken clouds in Lewistown, Montana with a maximum temperature of 64°F, maximum UV of 5 (Moderate) and 2 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 9 mph from the south-west.