Lewistown weather live forecast

Today's maximum temperature in Lewistown is expected to be 64°F. Select a day from the live weather forecast for Lewistown, Montana, USA for more weather parameters.

Sunday
8th Mar
64

37

6

3
Monday
9th Mar
37

23

5

3
Tuesday
10th Mar
36

21

4

2
Wednesday
11th Mar
43

19

1

2
Thursday
12th Mar
48

27

0

2

5-day weather forecast updated at 04:03 on Monday 9th 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 Sunday 8th March 2026

Expect clear skies with flurries of snow in Lewistown, Montana with a maximum temperature of 64°F, maximum UV of 3 (Moderate) and 6 hours of bright sunshine. There are 0-2 cm of snow expected with 65% chance of some snow and a strong breeze of 27 mph from the west.

64
°F maximum temperature
37
°F minimum temperature
clear skies with flurries of snow
6
hours of sunshine
3
UV index (Moderate)
65
% chance of some snow
<2
cm of snow expected
0
no heat & humidity
27
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 37°F, maximum UV of 3 (Moderate) and 5 hours of bright sunshine. There are 2-5 mm of sleet/snow expected with 31% chance of some sleet or snow and a fresh breeze of 21 mph from the west.

37
°F maximum temperature
23
°F minimum temperature
cloudy with sleet or snow
5
hours of sunshine
3
UV index (Moderate)
31
% chance of some sleet or snow
<5
mm of sleet/snow expected
27
°F wind chill
21
mph wind from W

Lewistown weather for Tuesday 10th March 2026

Expect mostly cloudy with light snow in Lewistown, Montana with a maximum temperature of 36°F, maximum UV of 2 (Low) and 4 hours of bright sunshine. There are 0-2 cm of snow expected with 40% chance of some snow and a moderate breeze of 14 mph from the west.

36
°F maximum temperature
21
°F minimum temperature
mostly cloudy with light snow
4
hours of sunshine
2
UV index (Low)
40
% chance of some snow
<2
cm of snow expected
27
°F wind chill
14
mph wind from W

Lewistown weather for Wednesday 11th March 2026

Expect broken clouds in Lewistown, Montana with a maximum temperature of 43°F, maximum UV of 2 (Low) and 1 hour of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 20 mph from the south-west.

43
°F maximum temperature
19
°F minimum temperature
broken clouds
1
hour of sunshine
2
UV index (Low)
0
mm of rainfall expected
34
°F wind chill
20
mph wind from SW

Lewistown weather for Thursday 12th March 2026

Expect cloudy with sleet or snow in Lewistown, Montana with a maximum temperature of 48°F, maximum UV of 2 (Low) and no hours of bright sunshine. There are 2-5 mm of sleet/snow expected with 79% chance of some sleet or snow and a moderate gale of 32 mph from the west.