Lewistown weather live forecast

Today's maximum temperature in Lewistown is expected to be 18°C. Select a day from the live weather forecast for Lewistown, Montana, USA for more weather parameters.

Saturday
14th Nov
18

3

6

1
Sunday
15th Nov
15

3

5

2
Monday
16th Nov
16

4

3

1
Tuesday
17th Nov
8

1

0

1
Wednesday
18th Nov
6

-3

3

1

5-day weather forecast updated at 04:02 on Saturday 14th November 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 Saturday 14th November 2026

Expect scattered clouds in Lewistown, Montana with a maximum temperature of 18°C, maximum UV of 1 (Low) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 10 kph from the south.

18
°C maximum temperature
3
°C minimum temperature
scattered clouds
6
hours of sunshine
1
UV index (Low)
0
mm of rainfall expected
0
no heat & humidity
10
kph wind from S

Lewistown weather for Sunday 15th November 2026

Expect scattered clouds in Lewistown, Montana with a maximum temperature of 15°C, maximum UV of 2 (Low) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 18 kph from the south-west.

15
°C maximum temperature
3
°C minimum temperature
scattered clouds
5
hours of sunshine
2
UV index (Low)
0
mm of rainfall expected
0
no heat & humidity
18
kph wind from SW

Lewistown weather for Monday 16th November 2026

Expect broken clouds in Lewistown, Montana with a maximum temperature of 16°C, maximum UV of 1 (Low) and 3 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 9 kph from the south.

16
°C maximum temperature
4
°C minimum temperature
broken clouds
3
hours of sunshine
1
UV index (Low)
0
mm of rainfall expected
16
°C wind chill
9
kph wind from S

Lewistown weather for Tuesday 17th November 2026

Expect overcast skies in Lewistown, Montana with a maximum temperature of 8°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 6 kph from the north-west.

8
°C maximum temperature
1
°C minimum temperature
overcast skies
0
hours of sunshine
1
UV index (Low)
0
mm of rainfall expected
8
°C wind chill
6
kph wind from NW

Lewistown weather for Wednesday 18th November 2026

Expect cloudy with sleet or snow in Lewistown, Montana with a maximum temperature of 6°C, maximum UV of 1 (Low) and 3 hours of bright sunshine. There are 5-10 mm of sleet/snow expected with 50% chance of some sleet or snow and a light breeze of 10 kph from the west.