Lewistown weather live forecast

Today's maximum temperature in Lewistown is expected to be 7°C. Select a day from the live weather forecast for Lewistown, Montana, USA for more weather parameters.

Thursday
12th Feb
7

-6

10

2
Friday
13th Feb
6

-2

8

2
Saturday
14th Feb
7

-1

2

2
Sunday
15th Feb
5

-2

1

2
Monday
16th Feb
7

-3

6

2

5-day weather forecast updated at 04:03 on Thursday 12th February 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 12th February 2026

Expect scattered clouds in Lewistown, Montana with a maximum temperature of 7°C, maximum UV of 2 (Low) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 14 kph from the south-west.

7
°C maximum temperature
-6
°C minimum temperature
scattered clouds
10
hours of sunshine
2
UV index (Low)
0
mm of rainfall expected
4
°C wind chill
14
kph wind from SW

Lewistown weather for Friday 13th February 2026

Expect broken clouds in Lewistown, Montana with a maximum temperature of 6°C, maximum UV of 2 (Low) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 14 kph from the south-west.

6
°C maximum temperature
-2
°C minimum temperature
broken clouds
8
hours of sunshine
2
UV index (Low)
0
mm of rainfall expected
4
°C wind chill
14
kph wind from SW

Lewistown weather for Saturday 14th February 2026

Expect broken clouds in Lewistown, Montana with a maximum temperature of 7°C, maximum UV of 2 (Low) and 2 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 20 kph from the south-west.

7
°C maximum temperature
-1
°C minimum temperature
broken clouds
2
hours of sunshine
2
UV index (Low)
0
mm of rainfall expected
4
°C wind chill
20
kph wind from SW

Lewistown weather for Sunday 15th February 2026

Expect cloudy with sleet or snow in Lewistown, Montana with a maximum temperature of 5°C, maximum UV of 2 (Low) and 1 hour of bright sunshine. There are 2-5 mm of sleet/snow expected with 38% chance of some sleet or snow and a light breeze of 10 kph from the south.

5
°C maximum temperature
-2
°C minimum temperature
cloudy with sleet or snow
1
hour of sunshine
2
UV index (Low)
38
% chance of some sleet or snow
<5
mm of sleet/snow expected
3
°C wind chill
10
kph wind from S

Lewistown weather for Monday 16th February 2026

Expect clear skies with flurries of snow in Lewistown, Montana with a maximum temperature of 7°C, maximum UV of 2 (Low) and 6 hours of bright sunshine. There are 0-2 cm of snow expected with 18% chance of some snow and a gentle breeze of 14 kph from the east.