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.

Sunday
8th Feb
11

1

2

1
Monday
9th Feb
3

-4

1

1
Tuesday
10th Feb
5

-6

10

2
Wednesday
11th Feb
6

-7

7

2
Thursday
12th Feb
7

-8

10

2

5-day weather forecast updated at 04:06 on Monday 9th 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 Sunday 8th February 2026

Expect cloudy with sleet or snow in Lewistown, Montana with a maximum temperature of 11°C, maximum UV of 1 (Low) and 2 hours of bright sunshine. There are 0-2 mm of sleet/snow expected with 92% chance of some sleet or snow and a moderate breeze of 20 kph from the south-west.

11
°C maximum temperature
1
°C minimum temperature
cloudy with sleet or snow
2
hours of sunshine
1
UV index (Low)
92
% chance of some sleet or snow
<2
mm of sleet/snow expected
0
no heat & humidity
20
kph wind from SW

Lewistown weather for Monday 9th February 2026

Expect mostly cloudy with snow in Lewistown, Montana with a maximum temperature of 3°C, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 10-20 cm of snow expected with 100% chance of some snow and a gentle breeze of 15 kph from the south-west.

3
°C maximum temperature
-4
°C minimum temperature
mostly cloudy with snow
1
hour of sunshine
1
UV index (Low)
100
% chance of some snow
<20
cm of snow expected
-1
°C wind chill
15
kph wind from SW

Lewistown weather for Tuesday 10th February 2026

Expect scattered clouds in Lewistown, Montana with a maximum temperature of 5°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.

5
°C maximum temperature
-6
°C minimum temperature
scattered clouds
10
hours of sunshine
2
UV index (Low)
0
mm of rainfall expected
2
°C wind chill
14
kph wind from SW

Lewistown weather for Wednesday 11th February 2026

Expect broken clouds in Lewistown, Montana with a maximum temperature of 6°C, maximum UV of 2 (Low) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 11 kph from the south.

6
°C maximum temperature
-7
°C minimum temperature
broken clouds
7
hours of sunshine
2
UV index (Low)
0
mm of rainfall expected
3
°C wind chill
11
kph wind from S

Lewistown weather for Thursday 12th February 2026

Expect clear skies 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 light breeze of 12 kph from the south-west.