Lewistown weather live forecast

Today's maximum temperature in Lewistown is expected to be 11°C. Select a day from the live weather forecast for Lewistown, Montana, USA for more weather parameters.

Friday
23rd Oct
11

0

1

1
Saturday
24th Oct
5

-4

10

3
Sunday
25th Oct
5

-3

10

3
Monday
26th Oct
6

-2

8

3
Tuesday
27th Oct
9

1

1

3

5-day weather forecast updated at 04:03 on Friday 23rd October 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 Friday 23rd October 2026

Expect cloudy with sleet or snow in Lewistown, Montana with a maximum temperature of 11°C, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 20-30 mm of sleet/snow expected with 100% chance of some sleet or snow and a fresh breeze of 38 kph from the north-west.

11
°C maximum temperature
0
°C minimum temperature
cloudy with sleet or snow
1
hour of sunshine
1
UV index (Low)
100
% chance of some sleet or snow
<30
mm of sleet/snow expected
11
°C wind chill
38
kph wind from NW

Lewistown weather for Saturday 24th October 2026

Expect clear skies in Lewistown, Montana with a maximum temperature of 5°C, maximum UV of 3 (Moderate) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 27 kph from the west.

5
°C maximum temperature
-4
°C minimum temperature
clear skies
10
hours of sunshine
3
UV index (Moderate)
0
mm of rainfall expected
0
°C wind chill
27
kph wind from W

Lewistown weather for Sunday 25th October 2026

Expect clear skies in Lewistown, Montana with a maximum temperature of 5°C, maximum UV of 3 (Moderate) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 12 kph from the east.

5
°C maximum temperature
-3
°C minimum temperature
clear skies
10
hours of sunshine
3
UV index (Moderate)
0
mm of rainfall expected
3
°C wind chill
12
kph wind from E

Lewistown weather for Monday 26th October 2026

Expect scattered clouds in Lewistown, Montana with a maximum temperature of 6°C, maximum UV of 3 (Moderate) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 12 kph from the south-east.

6
°C maximum temperature
-2
°C minimum temperature
scattered clouds
8
hours of sunshine
3
UV index (Moderate)
0
mm of rainfall expected
4
°C wind chill
12
kph wind from SE

Lewistown weather for Tuesday 27th October 2026

Expect mostly cloudy with light rain in Lewistown, Montana with a maximum temperature of 9°C, maximum UV of 3 (Moderate) and 1 hour of bright sunshine. There are 2-5 mm of rainfall expected with 39% chance of some rain and a light breeze of 9 kph from the south-east.