Lewistown weather live forecast

Today's maximum temperature in Lewistown is expected to be 30°F. Select a day from the live weather forecast for Lewistown, Montana, USA for more weather parameters.

Saturday
14th Mar
30

10

1

3
Sunday
15th Mar
25

5

11

4
Monday
16th Mar
41

14

6

5
Tuesday
17th Mar
54

41

6

3
Wednesday
18th Mar
64

46

7

4

5-day weather forecast updated at 04:03 on Saturday 14th March 2026 GMT

More about Lewistown

Lewistown by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Montana

GO Airport Shuttle discount code: 5% off airport transfers

Discount Code

Save EXTRA 5% on airport transfers worldwide
Book private taxis & shuttle buses with discount code
Enter in coupon box on 'Reservations' page

Show discount code

******WEB

Redeem GO Airport Shuttle discount code >>

Expires at 23:59 on Thursday 31st Dec 2026

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 14th March 2026

Expect cloudy with some snow in Lewistown, Montana with a maximum temperature of 30°F, maximum UV of 3 (Moderate) and 1 hour of bright sunshine. There are 10-20 cm of snow expected with 100% chance of some snow and a moderate breeze of 16 mph from the north-west.

30
°F maximum temperature
10
°F minimum temperature
cloudy with some snow
1
hour of sunshine
3
UV index (Moderate)
100
% chance of some snow
<20
cm of snow expected
18
°F wind chill
16
mph wind from NW

Lewistown weather for Sunday 15th March 2026

Expect clear skies with flurries of snow in Lewistown, Montana with a maximum temperature of 25°F, maximum UV of 4 (Moderate) and 11 hours of bright sunshine. There are 0-2 cm of snow expected with 8% chance of some snow and a gentle breeze of 9 mph from the west.

25
°F maximum temperature
5
°F minimum temperature
clear skies with flurries of snow
11
hours of sunshine
4
UV index (Moderate)
8
% chance of some snow
<2
cm of snow expected
14
°F wind chill
9
mph wind from W

Lewistown weather for Monday 16th March 2026

Expect broken clouds in Lewistown, Montana with a maximum temperature of 41°F, maximum UV of 5 (Moderate) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 17 mph from the west.

41
°F maximum temperature
14
°F minimum temperature
broken clouds
6
hours of sunshine
5
UV index (Moderate)
0
mm of rainfall expected
34
°F wind chill
17
mph wind from W

Lewistown weather for Tuesday 17th March 2026

Expect broken clouds in Lewistown, Montana with a maximum temperature of 54°F, maximum UV of 3 (Moderate) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 24 mph from the west.

54
°F maximum temperature
41
°F minimum temperature
broken clouds
6
hours of sunshine
3
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
24
mph wind from W

Lewistown weather for Wednesday 18th March 2026

Expect scattered clouds in Lewistown, Montana with a maximum temperature of 64°F, maximum UV of 4 (Moderate) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 20 mph from the west.