Lewistown weather live forecast

Today's maximum temperature in Lewistown is expected to be 24°C. Select a day from the live weather forecast for Lewistown, Montana, USA for more weather parameters.

Thursday
8th Oct
24

8

10

4
Friday
9th Oct
27

12

9

3
Saturday
10th Oct
11

-1

0

1
Sunday
11th Oct
1

-3

0

4
Monday
12th Oct
3

-3

1

3

5-day weather forecast updated at 04:02 on Thursday 8th 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 Thursday 8th October 2026

Expect scattered clouds in Lewistown, Montana with a maximum temperature of 24°C, maximum UV of 4 (Moderate) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 11 kph from the south.

24
°C maximum temperature
8
°C minimum temperature
scattered clouds
10
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
24
°C wind chill
11
kph wind from S

Lewistown weather for Friday 9th October 2026

Expect scattered clouds in Lewistown, Montana with a maximum temperature of 27°C, maximum UV of 3 (Moderate) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 29 kph from the south-west.

27
°C maximum temperature
12
°C minimum temperature
scattered clouds
9
hours of sunshine
3
UV index (Moderate)
0
mm of rainfall expected
27
°C wind chill
29
kph wind from SW

Lewistown weather for Saturday 10th October 2026

Expect cloudy with sleet or snow in Lewistown, Montana with a maximum temperature of 11°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 5-10 mm of sleet/snow expected with 87% chance of some sleet or snow and a gentle breeze of 19 kph from the north-west.

11
°C maximum temperature
-1
°C minimum temperature
cloudy with sleet or snow
0
hours of sunshine
1
UV index (Low)
87
% chance of some sleet or snow
<10
mm of sleet/snow expected
11
°C wind chill
19
kph wind from NW

Lewistown weather for Sunday 11th October 2026

Expect cloudy with some snow in Lewistown, Montana with a maximum temperature of 1°C, maximum UV of 4 (Moderate) and no hours of bright sunshine. There are 5-10 cm of snow expected with 95% chance of some snow and a light breeze of 12 kph from the north.

1
°C maximum temperature
-3
°C minimum temperature
cloudy with some snow
0
hours of sunshine
4
UV index (Moderate)
95
% chance of some snow
<10
cm of snow expected
-3
°C wind chill
12
kph wind from N

Lewistown weather for Monday 12th October 2026

Expect mostly cloudy with light snow in Lewistown, Montana with a maximum temperature of 3°C, maximum UV of 3 (Moderate) and 1 hour of bright sunshine. There are 0-2 cm of snow expected with 35% chance of some snow and little or no wind of 6 kph from the south.