Lewistown weather live forecast

Today's maximum temperature in Lewistown is expected to be 8°C. Select a day from the live weather forecast for Lewistown, Montana, USA for more weather parameters.

Monday
26th Oct
8

-1

9

3
Tuesday
27th Oct
6

2

3

2
Wednesday
28th Oct
8

1

9

2
Thursday
29th Oct
3

-1

5

2
Friday
30th Oct
3

-1

0

2

5-day weather forecast updated at 04:02 on Monday 26th 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 Monday 26th October 2026

Expect scattered clouds in Lewistown, Montana with a maximum temperature of 8°C, maximum UV of 3 (Moderate) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 14 kph from the east.

8
°C maximum temperature
-1
°C minimum temperature
scattered clouds
9
hours of sunshine
3
UV index (Moderate)
0
mm of rainfall expected
6
°C wind chill
14
kph wind from E

Lewistown weather for Tuesday 27th October 2026

Expect mostly cloudy with light rain in Lewistown, Montana with a maximum temperature of 6°C, maximum UV of 2 (Low) and 3 hours of bright sunshine. There are 2-5 mm of rainfall expected with 46% chance of some rain and a fresh breeze of 31 kph from the west.

6
°C maximum temperature
2
°C minimum temperature
mostly cloudy with light rain
3
hours of sunshine
2
UV index (Low)
46
% chance of some rain
<5
mm of rainfall expected
2
°C wind chill
31
kph wind from W

Lewistown weather for Wednesday 28th October 2026

Expect scattered clouds in Lewistown, Montana with a maximum temperature of 8°C, maximum UV of 2 (Low) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 19 kph from the south-west.

8
°C maximum temperature
1
°C minimum temperature
scattered clouds
9
hours of sunshine
2
UV index (Low)
0
mm of rainfall expected
5
°C wind chill
19
kph wind from SW

Lewistown weather for Thursday 29th October 2026

Expect broken clouds in Lewistown, Montana with a maximum temperature of 3°C, maximum UV of 2 (Low) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 8 kph from the east.

3
°C maximum temperature
-1
°C minimum temperature
broken clouds
5
hours of sunshine
2
UV index (Low)
0
mm of rainfall expected
1
°C wind chill
8
kph wind from E

Lewistown weather for Friday 30th October 2026

Expect overcast skies in Lewistown, Montana with a maximum temperature of 3°C, maximum UV of 2 (Low) and no hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 9 kph from the east.